From: Miguel Ojeda miguel.ojeda.sandonis@gmail.com

commit 0c97bf863efce63d6ab7971dad811601e6171d2f upstream.

Starting with GCC 9, -Warray-bounds detects cases when memset is called starting on a member of a struct but the size to be cleared ends up writing over further members.

Such a call happens in the trace code to clear, at once, all members after and including `seq` on struct trace_iterator:

In function 'memset', inlined from 'ftrace_dump' at kernel/trace/trace.c:8914:3: ./include/linux/string.h:344:9: warning: '__builtin_memset' offset [8505, 8560] from the object at 'iter' is out of the bounds of referenced subobject 'seq' with type 'struct trace_seq' at offset 4368 [-Warray-bounds] 344 | return __builtin_memset(p, c, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

In order to avoid GCC complaining about it, we compute the address ourselves by adding the offsetof distance instead of referring directly to the member.

Since there are two places doing this clear (trace.c and trace_kdb.c), take the chance to move the workaround into a single place in the internal header.

Link: http://lkml.kernel.org/r/20190523124535.GA12931@gmail.com

Signed-off-by: Miguel Ojeda miguel.ojeda.sandonis@gmail.com [ Removed unnecessary parenthesis around "iter" ] Signed-off-by: Steven Rostedt (VMware) rostedt@goodmis.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- kernel/trace/trace.c | 6 +----- kernel/trace/trace.h | 18 ++++++++++++++++++ kernel/trace/trace_kdb.c | 6 +----- 3 files changed, 20 insertions(+), 10 deletions(-)

--- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -8351,12 +8351,8 @@ void ftrace_dump(enum ftrace_dump_mode o

cnt++;

- /* reset all but tr, trace, and overruns */ - memset(&iter.seq, 0, - sizeof(struct trace_iterator) - - offsetof(struct trace_iterator, seq)); + trace_iterator_reset(&iter); iter.iter_flags |= TRACE_FILE_LAT_FMT; - iter.pos = -1;

if (trace_find_next_entry_inc(&iter) != NULL) { int ret; --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -1895,4 +1895,22 @@ static inline void tracer_hardirqs_off(u

extern struct trace_iterator *tracepoint_print_iter;

+/* + * Reset the state of the trace_iterator so that it can read consumed data. + * Normally, the trace_iterator is used for reading the data when it is not + * consumed, and must retain state. + */ +static __always_inline void trace_iterator_reset(struct trace_iterator *iter) +{ + const size_t offset = offsetof(struct trace_iterator, seq); + + /* + * Keep gcc from complaining about overwriting more than just one + * member in the structure. + */ + memset((char *)iter + offset, 0, sizeof(struct trace_iterator) - offset); + + iter->pos = -1; +} + #endif /* _LINUX_KERNEL_TRACE_H */ --- a/kernel/trace/trace_kdb.c +++ b/kernel/trace/trace_kdb.c @@ -41,12 +41,8 @@ static void ftrace_dump_buf(int skip_lin

kdb_printf("Dumping ftrace buffer:\n");

- /* reset all but tr, trace, and overruns */ - memset(&iter.seq, 0, - sizeof(struct trace_iterator) - - offsetof(struct trace_iterator, seq)); + trace_iterator_reset(&iter); iter.iter_flags |= TRACE_FILE_LAT_FMT; - iter.pos = -1;

if (cpu_file == RING_BUFFER_ALL_CPUS) { for_each_tracing_cpu(cpu) {

From: Linus Torvalds torvalds@linux-foundation.org

commit 6f303d60534c46aa1a239f29c321f95c83dda748 upstream.

We already did this for clang, but now gcc has that warning too. Yes, yes, the address may be unaligned. And that's kind of the point.

Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/Makefile +++ b/Makefile @@ -652,6 +652,7 @@ KBUILD_CFLAGS += $(call cc-disable-warni KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation) KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow) KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context) +KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) @@ -696,7 +697,6 @@ ifeq ($(cc-name),clang) KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) KBUILD_CFLAGS += $(call cc-disable-warning, gnu) -KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) # Quiet clang warning: comparison of unsigned expression < 0 is always false KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the

[ Upstream commit 941d935ac7636911a3fd8fa80e758e52b0b11e20 ]

The ioctl argument was parsed as the wrong type.

Fixes: b21d9c435f93 ("ovl: support the FS_IOC_FS[SG]ETXATTR ioctls") Signed-off-by: Amir Goldstein amir73il@gmail.com Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/overlayfs/file.c | 91 ++++++++++++++++++++++++++++++++------------- 1 file changed, 65 insertions(+), 26 deletions(-)

diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index 749532fd51d7..0bd276e4ccbe 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -409,37 +409,16 @@ static long ovl_real_ioctl(struct file *file, unsigned int cmd, return ret; }

-static unsigned int ovl_get_inode_flags(struct inode *inode) -{ - unsigned int flags = READ_ONCE(inode->i_flags); - unsigned int ovl_iflags = 0; - - if (flags & S_SYNC) - ovl_iflags |= FS_SYNC_FL; - if (flags & S_APPEND) - ovl_iflags |= FS_APPEND_FL; - if (flags & S_IMMUTABLE) - ovl_iflags |= FS_IMMUTABLE_FL; - if (flags & S_NOATIME) - ovl_iflags |= FS_NOATIME_FL; - - return ovl_iflags; -} - static long ovl_ioctl_set_flags(struct file *file, unsigned int cmd, - unsigned long arg) + unsigned long arg, unsigned int iflags) { long ret; struct inode *inode = file_inode(file); - unsigned int flags; - unsigned int old_flags; + unsigned int old_iflags;

if (!inode_owner_or_capable(inode)) return -EACCES;

- if (get_user(flags, (int __user *) arg)) - return -EFAULT; - ret = mnt_want_write_file(file); if (ret) return ret; @@ -448,8 +427,8 @@ static long ovl_ioctl_set_flags(struct file *file, unsigned int cmd,

/* Check the capability before cred override */ ret = -EPERM; - old_flags = ovl_get_inode_flags(inode); - if (((flags ^ old_flags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) && + old_iflags = READ_ONCE(inode->i_flags); + if (((iflags ^ old_iflags) & (S_APPEND | S_IMMUTABLE)) && !capable(CAP_LINUX_IMMUTABLE)) goto unlock;

@@ -469,6 +448,63 @@ static long ovl_ioctl_set_flags(struct file *file, unsigned int cmd,

}

+static unsigned int ovl_fsflags_to_iflags(unsigned int flags) +{ + unsigned int iflags = 0; + + if (flags & FS_SYNC_FL) + iflags |= S_SYNC; + if (flags & FS_APPEND_FL) + iflags |= S_APPEND; + if (flags & FS_IMMUTABLE_FL) + iflags |= S_IMMUTABLE; + if (flags & FS_NOATIME_FL) + iflags |= S_NOATIME; + + return iflags; +} + +static long ovl_ioctl_set_fsflags(struct file *file, unsigned int cmd, + unsigned long arg) +{ + unsigned int flags; + + if (get_user(flags, (int __user *) arg)) + return -EFAULT; + + return ovl_ioctl_set_flags(file, cmd, arg, + ovl_fsflags_to_iflags(flags)); +} + +static unsigned int ovl_fsxflags_to_iflags(unsigned int xflags) +{ + unsigned int iflags = 0; + + if (xflags & FS_XFLAG_SYNC) + iflags |= S_SYNC; + if (xflags & FS_XFLAG_APPEND) + iflags |= S_APPEND; + if (xflags & FS_XFLAG_IMMUTABLE) + iflags |= S_IMMUTABLE; + if (xflags & FS_XFLAG_NOATIME) + iflags |= S_NOATIME; + + return iflags; +} + +static long ovl_ioctl_set_fsxflags(struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct fsxattr fa; + + memset(&fa, 0, sizeof(fa)); + if (copy_from_user(&fa, (void __user *) arg, sizeof(fa))) + return -EFAULT; + + return ovl_ioctl_set_flags(file, cmd, arg, + ovl_fsxflags_to_iflags(fa.fsx_xflags)); +} + static long ovl_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { long ret; @@ -480,8 +516,11 @@ static long ovl_ioctl(struct file *file, unsigned int cmd, unsigned long arg) break;

case FS_IOC_SETFLAGS: + ret = ovl_ioctl_set_fsflags(file, cmd, arg); + break; + case FS_IOC_FSSETXATTR: - ret = ovl_ioctl_set_flags(file, cmd, arg); + ret = ovl_ioctl_set_fsxflags(file, cmd, arg); break;

default:

[ Upstream commit 146d62e5a5867fbf84490d82455718bfb10fe824 ]

Overlapping overlay layers are not supported and can cause unexpected behavior, but overlayfs does not currently check or warn about these configurations.

User is not supposed to specify the same directory for upper and lower dirs or for different lower layers and user is not supposed to specify directories that are descendants of each other for overlay layers, but that is exactly what this zysbot repro did:

https://syzkaller.appspot.com/x/repro.syz?x=12c7a94f400000

Moving layer root directories into other layers while overlayfs is mounted could also result in unexpected behavior.

This commit places "traps" in the overlay inode hash table. Those traps are dummy overlay inodes that are hashed by the layers root inodes.

On mount, the hash table trap entries are used to verify that overlay layers are not overlapping. While at it, we also verify that overlay layers are not overlapping with directories "in-use" by other overlay instances as upperdir/workdir.

On lookup, the trap entries are used to verify that overlay layers root inodes have not been moved into other layers after mount.

Some examples:

$ ./run --ov --samefs -s ... ( mkdir -p base/upper/0/u base/upper/0/w base/lower lower upper mnt mount -o bind base/lower lower mount -o bind base/upper upper mount -t overlay none mnt ... -o lowerdir=lower,upperdir=upper/0/u,workdir=upper/0/w)

$ umount mnt $ mount -t overlay none mnt ... -o lowerdir=base,upperdir=upper/0/u,workdir=upper/0/w

[ 94.434900] overlayfs: overlapping upperdir path mount: mount overlay on mnt failed: Too many levels of symbolic links

$ mount -t overlay none mnt ... -o lowerdir=upper/0/u,upperdir=upper/0/u,workdir=upper/0/w

[ 151.350132] overlayfs: conflicting lowerdir path mount: none is already mounted or mnt busy

$ mount -t overlay none mnt ... -o lowerdir=lower:lower/a,upperdir=upper/0/u,workdir=upper/0/w

[ 201.205045] overlayfs: overlapping lowerdir path mount: mount overlay on mnt failed: Too many levels of symbolic links

$ mount -t overlay none mnt ... -o lowerdir=lower,upperdir=upper/0/u,workdir=upper/0/w $ mv base/upper/0/ base/lower/ $ find mnt/0 mnt/0 mnt/0/w find: 'mnt/0/w/work': Too many levels of symbolic links find: 'mnt/0/u': Too many levels of symbolic links

Reported-by: syzbot+9c69c282adc4edd2b540@syzkaller.appspotmail.com Signed-off-by: Amir Goldstein amir73il@gmail.com Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/overlayfs/inode.c | 48 +++++++++++ fs/overlayfs/namei.c | 8 ++ fs/overlayfs/overlayfs.h | 3 + fs/overlayfs/ovl_entry.h | 6 ++ fs/overlayfs/super.c | 169 +++++++++++++++++++++++++++++++++++---- fs/overlayfs/util.c | 12 +++ 6 files changed, 229 insertions(+), 17 deletions(-)

diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 373ccff9880c..f0389849fd80 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -777,6 +777,54 @@ struct inode *ovl_lookup_inode(struct super_block *sb, struct dentry *real, return inode; }

+bool ovl_lookup_trap_inode(struct super_block *sb, struct dentry *dir) +{ + struct inode *key = d_inode(dir); + struct inode *trap; + bool res; + + trap = ilookup5(sb, (unsigned long) key, ovl_inode_test, key); + if (!trap) + return false; + + res = IS_DEADDIR(trap) && !ovl_inode_upper(trap) && + !ovl_inode_lower(trap); + + iput(trap); + return res; +} + +/* + * Create an inode cache entry for layer root dir, that will intentionally + * fail ovl_verify_inode(), so any lookup that will find some layer root + * will fail. + */ +struct inode *ovl_get_trap_inode(struct super_block *sb, struct dentry *dir) +{ + struct inode *key = d_inode(dir); + struct inode *trap; + + if (!d_is_dir(dir)) + return ERR_PTR(-ENOTDIR); + + trap = iget5_locked(sb, (unsigned long) key, ovl_inode_test, + ovl_inode_set, key); + if (!trap) + return ERR_PTR(-ENOMEM); + + if (!(trap->i_state & I_NEW)) { + /* Conflicting layer roots? */ + iput(trap); + return ERR_PTR(-ELOOP); + } + + trap->i_mode = S_IFDIR; + trap->i_flags = S_DEAD; + unlock_new_inode(trap); + + return trap; +} + /* * Does overlay inode need to be hashed by lower inode? */ diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index efd372312ef1..badf039267a2 100644 --- a/fs/overlayfs/namei.c +++ b/fs/overlayfs/namei.c @@ -18,6 +18,7 @@ #include "overlayfs.h"

struct ovl_lookup_data { + struct super_block *sb; struct qstr name; bool is_dir; bool opaque; @@ -244,6 +245,12 @@ static int ovl_lookup_single(struct dentry *base, struct ovl_lookup_data *d, if (!d->metacopy || d->last) goto out; } else { + if (ovl_lookup_trap_inode(d->sb, this)) { + /* Caught in a trap of overlapping layers */ + err = -ELOOP; + goto out_err; + } + if (last_element) d->is_dir = true; if (d->last) @@ -819,6 +826,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, int err; bool metacopy = false; struct ovl_lookup_data d = { + .sb = dentry->d_sb, .name = dentry->d_name, .is_dir = false, .opaque = false, diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 80fb66426760..265bf9cfde08 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -270,6 +270,7 @@ void ovl_clear_flag(unsigned long flag, struct inode *inode); bool ovl_test_flag(unsigned long flag, struct inode *inode); bool ovl_inuse_trylock(struct dentry *dentry); void ovl_inuse_unlock(struct dentry *dentry); +bool ovl_is_inuse(struct dentry *dentry); bool ovl_need_index(struct dentry *dentry); int ovl_nlink_start(struct dentry *dentry, bool *locked); void ovl_nlink_end(struct dentry *dentry, bool locked); @@ -366,6 +367,8 @@ struct ovl_inode_params { struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, dev_t rdev); struct inode *ovl_lookup_inode(struct super_block *sb, struct dentry *real, bool is_upper); +bool ovl_lookup_trap_inode(struct super_block *sb, struct dentry *dir); +struct inode *ovl_get_trap_inode(struct super_block *sb, struct dentry *dir); struct inode *ovl_get_inode(struct super_block *sb, struct ovl_inode_params *oip); static inline void ovl_copyattr(struct inode *from, struct inode *to) diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h index ec237035333a..6ed1ace8f8b3 100644 --- a/fs/overlayfs/ovl_entry.h +++ b/fs/overlayfs/ovl_entry.h @@ -29,6 +29,8 @@ struct ovl_sb {

struct ovl_layer { struct vfsmount *mnt; + /* Trap in ovl inode cache */ + struct inode *trap; struct ovl_sb *fs; /* Index of this layer in fs root (upper idx == 0) */ int idx; @@ -65,6 +67,10 @@ struct ovl_fs { /* Did we take the inuse lock? */ bool upperdir_locked; bool workdir_locked; + /* Traps in ovl inode cache */ + struct inode *upperdir_trap; + struct inode *workdir_trap; + struct inode *indexdir_trap; /* Inode numbers in all layers do not use the high xino_bits */ unsigned int xino_bits; }; diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index 0fb0a59a5e5c..4e268f981b4d 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -217,6 +217,9 @@ static void ovl_free_fs(struct ovl_fs *ofs) { unsigned i;

+ iput(ofs->indexdir_trap); + iput(ofs->workdir_trap); + iput(ofs->upperdir_trap); dput(ofs->indexdir); dput(ofs->workdir); if (ofs->workdir_locked) @@ -225,8 +228,10 @@ static void ovl_free_fs(struct ovl_fs *ofs) if (ofs->upperdir_locked) ovl_inuse_unlock(ofs->upper_mnt->mnt_root); mntput(ofs->upper_mnt); - for (i = 0; i < ofs->numlower; i++) + for (i = 0; i < ofs->numlower; i++) { + iput(ofs->lower_layers[i].trap); mntput(ofs->lower_layers[i].mnt); + } for (i = 0; i < ofs->numlowerfs; i++) free_anon_bdev(ofs->lower_fs[i].pseudo_dev); kfree(ofs->lower_layers); @@ -984,7 +989,26 @@ static const struct xattr_handler *ovl_xattr_handlers[] = { NULL };

-static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath) +static int ovl_setup_trap(struct super_block *sb, struct dentry *dir, + struct inode **ptrap, const char *name) +{ + struct inode *trap; + int err; + + trap = ovl_get_trap_inode(sb, dir); + err = PTR_ERR(trap); + if (IS_ERR(trap)) { + if (err == -ELOOP) + pr_err("overlayfs: conflicting %s path\n", name); + return err; + } + + *ptrap = trap; + return 0; +} + +static int ovl_get_upper(struct super_block *sb, struct ovl_fs *ofs, + struct path *upperpath) { struct vfsmount *upper_mnt; int err; @@ -1004,6 +1028,11 @@ static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath) if (err) goto out;

+ err = ovl_setup_trap(sb, upperpath->dentry, &ofs->upperdir_trap, + "upperdir"); + if (err) + goto out; + upper_mnt = clone_private_mount(upperpath); err = PTR_ERR(upper_mnt); if (IS_ERR(upper_mnt)) { @@ -1030,7 +1059,8 @@ static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath) return err; }

-static int ovl_make_workdir(struct ovl_fs *ofs, struct path *workpath) +static int ovl_make_workdir(struct super_block *sb, struct ovl_fs *ofs, + struct path *workpath) { struct vfsmount *mnt = ofs->upper_mnt; struct dentry *temp; @@ -1045,6 +1075,10 @@ static int ovl_make_workdir(struct ovl_fs *ofs, struct path *workpath) if (!ofs->workdir) goto out;

+ err = ovl_setup_trap(sb, ofs->workdir, &ofs->workdir_trap, "workdir"); + if (err) + goto out; + /* * Upper should support d_type, else whiteouts are visible. Given * workdir and upper are on same fs, we can do iterate_dir() on @@ -1105,7 +1139,8 @@ static int ovl_make_workdir(struct ovl_fs *ofs, struct path *workpath) return err; }

-static int ovl_get_workdir(struct ovl_fs *ofs, struct path *upperpath) +static int ovl_get_workdir(struct super_block *sb, struct ovl_fs *ofs, + struct path *upperpath) { int err; struct path workpath = { }; @@ -1136,19 +1171,16 @@ static int ovl_get_workdir(struct ovl_fs *ofs, struct path *upperpath) pr_warn("overlayfs: workdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n"); }

- err = ovl_make_workdir(ofs, &workpath); - if (err) - goto out; + err = ovl_make_workdir(sb, ofs, &workpath);

- err = 0; out: path_put(&workpath);

return err; }

-static int ovl_get_indexdir(struct ovl_fs *ofs, struct ovl_entry *oe, - struct path *upperpath) +static int ovl_get_indexdir(struct super_block *sb, struct ovl_fs *ofs, + struct ovl_entry *oe, struct path *upperpath) { struct vfsmount *mnt = ofs->upper_mnt; int err; @@ -1167,6 +1199,11 @@ static int ovl_get_indexdir(struct ovl_fs *ofs, struct ovl_entry *oe,

ofs->indexdir = ovl_workdir_create(ofs, OVL_INDEXDIR_NAME, true); if (ofs->indexdir) { + err = ovl_setup_trap(sb, ofs->indexdir, &ofs->indexdir_trap, + "indexdir"); + if (err) + goto out; + /* * Verify upper root is exclusively associated with index dir. * Older kernels stored upper fh in "trusted.overlay.origin" @@ -1226,8 +1263,8 @@ static int ovl_get_fsid(struct ovl_fs *ofs, struct super_block *sb) return ofs->numlowerfs; }

-static int ovl_get_lower_layers(struct ovl_fs *ofs, struct path *stack, - unsigned int numlower) +static int ovl_get_lower_layers(struct super_block *sb, struct ovl_fs *ofs, + struct path *stack, unsigned int numlower) { int err; unsigned int i; @@ -1245,16 +1282,28 @@ static int ovl_get_lower_layers(struct ovl_fs *ofs, struct path *stack,

for (i = 0; i < numlower; i++) { struct vfsmount *mnt; + struct inode *trap; int fsid;

err = fsid = ovl_get_fsid(ofs, stack[i].mnt->mnt_sb); if (err < 0) goto out;

+ err = -EBUSY; + if (ovl_is_inuse(stack[i].dentry)) { + pr_err("overlayfs: lowerdir is in-use as upperdir/workdir\n"); + goto out; + } + + err = ovl_setup_trap(sb, stack[i].dentry, &trap, "lowerdir"); + if (err) + goto out; + mnt = clone_private_mount(&stack[i]); err = PTR_ERR(mnt); if (IS_ERR(mnt)) { pr_err("overlayfs: failed to clone lowerpath\n"); + iput(trap); goto out; }

@@ -1264,6 +1313,7 @@ static int ovl_get_lower_layers(struct ovl_fs *ofs, struct path *stack, */ mnt->mnt_flags |= MNT_READONLY | MNT_NOATIME;

+ ofs->lower_layers[ofs->numlower].trap = trap; ofs->lower_layers[ofs->numlower].mnt = mnt; ofs->lower_layers[ofs->numlower].idx = i + 1; ofs->lower_layers[ofs->numlower].fsid = fsid; @@ -1358,7 +1408,7 @@ static struct ovl_entry *ovl_get_lowerstack(struct super_block *sb, goto out_err; }

- err = ovl_get_lower_layers(ofs, stack, numlower); + err = ovl_get_lower_layers(sb, ofs, stack, numlower); if (err) goto out_err;

@@ -1390,6 +1440,85 @@ static struct ovl_entry *ovl_get_lowerstack(struct super_block *sb, goto out; }

+/* + * Check if this layer root is a descendant of: + * - another layer of this overlayfs instance + * - upper/work dir of any overlayfs instance + * - a disconnected dentry (detached root) + */ +static int ovl_check_layer(struct super_block *sb, struct dentry *dentry, + const char *name) +{ + struct dentry *next, *parent; + bool is_root = false; + int err = 0; + + if (!dentry || dentry == dentry->d_sb->s_root) + return 0; + + next = dget(dentry); + /* Walk back ancestors to fs root (inclusive) looking for traps */ + do { + parent = dget_parent(next); + is_root = (parent == next); + if (ovl_is_inuse(parent)) { + err = -EBUSY; + pr_err("overlayfs: %s path overlapping in-use upperdir/workdir\n", + name); + } else if (ovl_lookup_trap_inode(sb, parent)) { + err = -ELOOP; + pr_err("overlayfs: overlapping %s path\n", name); + } + dput(next); + next = parent; + } while (!err && !is_root); + + /* Did we really walk to fs root or found a detached root? */ + if (!err && next != dentry->d_sb->s_root) { + err = -ESTALE; + pr_err("overlayfs: disconnected %s path\n", name); + } + + dput(next); + + return err; +} + +/* + * Check if any of the layers or work dirs overlap. + */ +static int ovl_check_overlapping_layers(struct super_block *sb, + struct ovl_fs *ofs) +{ + int i, err; + + if (ofs->upper_mnt) { + err = ovl_check_layer(sb, ofs->upper_mnt->mnt_root, "upperdir"); + if (err) + return err; + + /* + * Checking workbasedir avoids hitting ovl_is_inuse(parent) of + * this instance and covers overlapping work and index dirs, + * unless work or index dir have been moved since created inside + * workbasedir. In that case, we already have their traps in + * inode cache and we will catch that case on lookup. + */ + err = ovl_check_layer(sb, ofs->workbasedir, "workdir"); + if (err) + return err; + } + + for (i = 0; i < ofs->numlower; i++) { + err = ovl_check_layer(sb, ofs->lower_layers[i].mnt->mnt_root, + "lowerdir"); + if (err) + return err; + } + + return 0; +} + static int ovl_fill_super(struct super_block *sb, void *data, int silent) { struct path upperpath = { }; @@ -1429,17 +1558,20 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent) if (ofs->config.xino != OVL_XINO_OFF) ofs->xino_bits = BITS_PER_LONG - 32;

+ /* alloc/destroy_inode needed for setting up traps in inode cache */ + sb->s_op = &ovl_super_operations; + if (ofs->config.upperdir) { if (!ofs->config.workdir) { pr_err("overlayfs: missing 'workdir'\n"); goto out_err; }

- err = ovl_get_upper(ofs, &upperpath); + err = ovl_get_upper(sb, ofs, &upperpath); if (err) goto out_err;

- err = ovl_get_workdir(ofs, &upperpath); + err = ovl_get_workdir(sb, ofs, &upperpath); if (err) goto out_err;

@@ -1460,7 +1592,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent) sb->s_flags |= SB_RDONLY;

if (!(ovl_force_readonly(ofs)) && ofs->config.index) { - err = ovl_get_indexdir(ofs, oe, &upperpath); + err = ovl_get_indexdir(sb, ofs, oe, &upperpath); if (err) goto out_free_oe;

@@ -1473,6 +1605,10 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)

}

+ err = ovl_check_overlapping_layers(sb, ofs); + if (err) + goto out_free_oe; + /* Show index=off in /proc/mounts for forced r/o mount */ if (!ofs->indexdir) { ofs->config.index = false; @@ -1494,7 +1630,6 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent) cap_lower(cred->cap_effective, CAP_SYS_RESOURCE);

sb->s_magic = OVERLAYFS_SUPER_MAGIC; - sb->s_op = &ovl_super_operations; sb->s_xattr = ovl_xattr_handlers; sb->s_fs_info = ofs; sb->s_flags |= SB_POSIXACL; diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index c9a2e3c6d537..db8bdb29b320 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -653,6 +653,18 @@ void ovl_inuse_unlock(struct dentry *dentry) } }

+bool ovl_is_inuse(struct dentry *dentry) +{ + struct inode *inode = d_inode(dentry); + bool inuse; + + spin_lock(&inode->i_lock); + inuse = (inode->i_state & I_OVL_INUSE); + spin_unlock(&inode->i_lock); + + return inuse; +} + /* * Does this overlay dentry need to be indexed on copy up? */

[ Upstream commit 1dac6f5b0ed2601be21bb4e27a44b0c3e667b7f4 ]

gcc gets a bit confused by the logic in ovl_setup_trap() and can't figure out whether the local 'trap' variable in the caller was initialized or not:

fs/overlayfs/super.c: In function 'ovl_fill_super': fs/overlayfs/super.c:1333:4: error: 'trap' may be used uninitialized in this function [-Werror=maybe-uninitialized] iput(trap); ^~~~~~~~~~ fs/overlayfs/super.c:1312:17: note: 'trap' was declared here

Reword slightly to make it easier for the compiler to understand.

Fixes: 146d62e5a586 ("ovl: detect overlapping layers") Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/overlayfs/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index d6e60a7156a1..2d028c02621f 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -996,8 +996,8 @@ static int ovl_setup_trap(struct super_block *sb, struct dentry *dir, int err;

trap = ovl_get_trap_inode(sb, dir); - err = PTR_ERR(trap); - if (IS_ERR(trap)) { + err = PTR_ERR_OR_ZERO(trap); + if (err) { if (err == -ELOOP) pr_err("overlayfs: conflicting %s path\n", name); return err;

[ Upstream commit 159491f3b509bd8101199944dc7b0673b881c734 ]

The inline assembler functions ap_aqic() and ap_qact() used two variables declared on the very same register. One variable was for input only, the other for output. Looks like newer versions of the gcc don't like this. Anyway it is a better coding to use one variable (which may have a union data type) on one register for input and output. So this patch introduces unions and uses only one variable now for input and output for GR1 for the PQAP(QACT) and PQAP(QIC) invocation.

Signed-off-by: Harald Freudenberger freude@linux.ibm.com Acked-by: Ilya Leoshkevich iii@linux.ibm.com Signed-off-by: Martin Schwidefsky schwidefsky@de.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/s390/include/asm/ap.h | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h index 8c00fd509c45..1a6a7092d942 100644 --- a/arch/s390/include/asm/ap.h +++ b/arch/s390/include/asm/ap.h @@ -221,16 +221,22 @@ static inline struct ap_queue_status ap_aqic(ap_qid_t qid, void *ind) { register unsigned long reg0 asm ("0") = qid | (3UL << 24); - register struct ap_qirq_ctrl reg1_in asm ("1") = qirqctrl; - register struct ap_queue_status reg1_out asm ("1"); + register union { + unsigned long value; + struct ap_qirq_ctrl qirqctrl; + struct ap_queue_status status; + } reg1 asm ("1"); register void *reg2 asm ("2") = ind;

+ reg1.qirqctrl = qirqctrl; + asm volatile( ".long 0xb2af0000" /* PQAP(AQIC) */ - : "=d" (reg1_out) - : "d" (reg0), "d" (reg1_in), "d" (reg2) + : "+d" (reg1) + : "d" (reg0), "d" (reg2) : "cc"); - return reg1_out; + + return reg1.status; }

/* @@ -264,17 +270,21 @@ static inline struct ap_queue_status ap_qact(ap_qid_t qid, int ifbit, { register unsigned long reg0 asm ("0") = qid | (5UL << 24) | ((ifbit & 0x01) << 22); - register unsigned long reg1_in asm ("1") = apinfo->val; - register struct ap_queue_status reg1_out asm ("1"); + register union { + unsigned long value; + struct ap_queue_status status; + } reg1 asm ("1"); register unsigned long reg2 asm ("2");

+ reg1.value = apinfo->val; + asm volatile( ".long 0xb2af0000" /* PQAP(QACT) */ - : "+d" (reg1_in), "=d" (reg1_out), "=d" (reg2) + : "+d" (reg1), "=d" (reg2) : "d" (reg0) : "cc"); apinfo->val = reg2; - return reg1_out; + return reg1.status; }

/**

From: Douglas Anderson dianders@chromium.org

commit 0a55f4ab9678413a01e740c86e9367ba0c612b36 upstream.

Normally when the MMC core sees an "-EILSEQ" error returned by a host controller then it will trigger a retuning of the card. This is generally a good idea.

However, if a command is expected to sometimes cause transfer errors then these transfer errors shouldn't cause a re-tuning. This re-tuning will be a needless waste of time. One example case where a transfer is expected to cause errors is when transitioning between idle (sometimes referred to as "sleep" in Broadcom code) and active state on certain Broadcom WiFi SDIO cards. Specifically if the card was already transitioning between states when the command was sent it could cause an error on the SDIO bus.

Let's add an API that the SDIO function drivers can call that will temporarily disable the auto-tuning functionality. Then we can add a call to this in the Broadcom WiFi driver and any other driver that might have similar needs.

NOTE: this makes the assumption that the card is already tuned well enough that it's OK to disable the auto-retuning during one of these error-prone situations. Presumably the driver code performing the error-prone transfer knows how to recover / retry from errors. ...and after we can get back to a state where transfers are no longer error-prone then we can enable the auto-retuning again. If we truly find ourselves in a case where the card needs to be retuned sometimes to handle one of these error-prone transfers then we can always try a few transfers first without auto-retuning and then re-try with auto-retuning if the first few fail.

Without this change on rk3288-veyron-minnie I periodically see this in the logs of a machine just sitting there idle: dwmmc_rockchip ff0d0000.dwmmc: Successfully tuned phase to XYZ

Cc: stable@vger.kernel.org #v4.18+ Signed-off-by: Douglas Anderson dianders@chromium.org Acked-by: Adrian Hunter adrian.hunter@intel.com Acked-by: Kalle Valo kvalo@codeaurora.org Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/mmc/core/core.c | 5 +++-- drivers/mmc/core/sdio_io.c | 37 +++++++++++++++++++++++++++++++++++++ include/linux/mmc/host.h | 1 + include/linux/mmc/sdio_func.h | 3 +++ 4 files changed, 44 insertions(+), 2 deletions(-)

--- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -144,8 +144,9 @@ void mmc_request_done(struct mmc_host *h int err = cmd->error;

/* Flag re-tuning needed on CRC errors */ - if ((cmd->opcode != MMC_SEND_TUNING_BLOCK && - cmd->opcode != MMC_SEND_TUNING_BLOCK_HS200) && + if (cmd->opcode != MMC_SEND_TUNING_BLOCK && + cmd->opcode != MMC_SEND_TUNING_BLOCK_HS200 && + !host->retune_crc_disable && (err == -EILSEQ || (mrq->sbc && mrq->sbc->error == -EILSEQ) || (mrq->data && mrq->data->error == -EILSEQ) || (mrq->stop && mrq->stop->error == -EILSEQ))) --- a/drivers/mmc/core/sdio_io.c +++ b/drivers/mmc/core/sdio_io.c @@ -725,3 +725,40 @@ int sdio_set_host_pm_flags(struct sdio_f return 0; } EXPORT_SYMBOL_GPL(sdio_set_host_pm_flags); + +/** + * sdio_retune_crc_disable - temporarily disable retuning on CRC errors + * @func: SDIO function attached to host + * + * If the SDIO card is known to be in a state where it might produce + * CRC errors on the bus in response to commands (like if we know it is + * transitioning between power states), an SDIO function driver can + * call this function to temporarily disable the SD/MMC core behavior of + * triggering an automatic retuning. + * + * This function should be called while the host is claimed and the host + * should remain claimed until sdio_retune_crc_enable() is called. + * Specifically, the expected sequence of calls is: + * - sdio_claim_host() + * - sdio_retune_crc_disable() + * - some number of calls like sdio_writeb() and sdio_readb() + * - sdio_retune_crc_enable() + * - sdio_release_host() + */ +void sdio_retune_crc_disable(struct sdio_func *func) +{ + func->card->host->retune_crc_disable = true; +} +EXPORT_SYMBOL_GPL(sdio_retune_crc_disable); + +/** + * sdio_retune_crc_enable - re-enable retuning on CRC errors + * @func: SDIO function attached to host + * + * This is the compement to sdio_retune_crc_disable(). + */ +void sdio_retune_crc_enable(struct sdio_func *func) +{ + func->card->host->retune_crc_disable = false; +} +EXPORT_SYMBOL_GPL(sdio_retune_crc_enable); --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -395,6 +395,7 @@ struct mmc_host { unsigned int retune_now:1; /* do re-tuning at next req */ unsigned int retune_paused:1; /* re-tuning is temporarily disabled */ unsigned int use_blk_mq:1; /* use blk-mq */ + unsigned int retune_crc_disable:1; /* don't trigger retune upon crc */

int rescan_disable; /* disable card detection */ int rescan_entered; /* used with nonremovable devices */ --- a/include/linux/mmc/sdio_func.h +++ b/include/linux/mmc/sdio_func.h @@ -159,4 +159,7 @@ extern void sdio_f0_writeb(struct sdio_f extern mmc_pm_flag_t sdio_get_host_pm_caps(struct sdio_func *func); extern int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags);

+extern void sdio_retune_crc_disable(struct sdio_func *func); +extern void sdio_retune_crc_enable(struct sdio_func *func); + #endif /* LINUX_MMC_SDIO_FUNC_H */

From: Ulf Hansson ulf.hansson@linaro.org

commit 83293386bc95cf5e9f0c0175794455835bd1cb4a upstream.

Processing of SDIO IRQs must obviously be prevented while the card is system suspended, otherwise we may end up trying to communicate with an uninitialized SDIO card.

Reports throughout the years shows that this is not only a theoretical problem, but a real issue. So, let's finally fix this problem, by keeping track of the state for the card and bail out before processing the SDIO IRQ, in case the card is suspended.

Cc: stable@vger.kernel.org Reported-by: Douglas Anderson dianders@chromium.org Tested-by: Douglas Anderson dianders@chromium.org Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/mmc/core/sdio.c | 13 ++++++++++++- drivers/mmc/core/sdio_irq.c | 4 ++++ 2 files changed, 16 insertions(+), 1 deletion(-)

--- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -934,6 +934,10 @@ static int mmc_sdio_pre_suspend(struct m */ static int mmc_sdio_suspend(struct mmc_host *host) { + /* Prevent processing of SDIO IRQs in suspended state. */ + mmc_card_set_suspended(host->card); + cancel_delayed_work_sync(&host->sdio_irq_work); + mmc_claim_host(host);

if (mmc_card_keep_power(host) && mmc_card_wake_sdio_irq(host)) @@ -982,13 +986,20 @@ static int mmc_sdio_resume(struct mmc_ho err = sdio_enable_4bit_bus(host->card); }

- if (!err && host->sdio_irqs) { + if (err) + goto out; + + /* Allow SDIO IRQs to be processed again. */ + mmc_card_clr_suspended(host->card); + + if (host->sdio_irqs) { if (!(host->caps2 & MMC_CAP2_SDIO_IRQ_NOTHREAD)) wake_up_process(host->sdio_irq_thread); else if (host->caps & MMC_CAP_SDIO_IRQ) host->ops->enable_sdio_irq(host, 1); }

+out: mmc_release_host(host);

host->pm_flags &= ~MMC_PM_KEEP_POWER; --- a/drivers/mmc/core/sdio_irq.c +++ b/drivers/mmc/core/sdio_irq.c @@ -38,6 +38,10 @@ static int process_sdio_pending_irqs(str unsigned char pending; struct sdio_func *func;

+ /* Don't process SDIO IRQs if the card is suspended. */ + if (mmc_card_suspended(card)) + return 0; + /* * Optimization, if there is only 1 function interrupt registered * and we know an IRQ was signaled then call irq handler directly.

From: Peter Chen peter.chen@nxp.com

commit c19dffc0a9511a7d7493ec21019aefd97e9a111b upstream.

An endpoint conflict occurs when the USB is working in device mode during an isochronous communication. When the endpointA IN direction is an isochronous IN endpoint, and the host sends an IN token to endpointA on another device, then the OUT transaction may be missed regardless the OUT endpoint number. Generally, this occurs when the device is connected to the host through a hub and other devices are connected to the same hub.

The affected OUT endpoint can be either control, bulk, isochronous, or an interrupt endpoint. After the OUT endpoint is primed, if an IN token to the same endpoint number on another device is received, then the OUT endpoint may be unprimed (cannot be detected by software), which causes this endpoint to no longer respond to the host OUT token, and thus, no corresponding interrupt occurs.

There is no good workaround for this issue, the only thing the software could do is numbering isochronous IN from the highest endpoint since we have observed most of device number endpoint from the lowest.

Cc: stable@vger.kernel.org #v3.14+ Cc: Fabio Estevam festevam@gmail.com Cc: Greg KH gregkh@linuxfoundation.org Cc: Sergei Shtylyov sergei.shtylyov@cogentembedded.com Cc: Jun Li jun.li@nxp.com Signed-off-by: Peter Chen peter.chen@nxp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/usb/chipidea/udc.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)

--- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1621,6 +1621,25 @@ static int ci_udc_pullup(struct usb_gadg static int ci_udc_start(struct usb_gadget *gadget, struct usb_gadget_driver *driver); static int ci_udc_stop(struct usb_gadget *gadget); + +/* Match ISOC IN from the highest endpoint */ +static struct usb_ep *ci_udc_match_ep(struct usb_gadget *gadget, + struct usb_endpoint_descriptor *desc, + struct usb_ss_ep_comp_descriptor *comp_desc) +{ + struct ci_hdrc *ci = container_of(gadget, struct ci_hdrc, gadget); + struct usb_ep *ep; + + if (usb_endpoint_xfer_isoc(desc) && usb_endpoint_dir_in(desc)) { + list_for_each_entry_reverse(ep, &ci->gadget.ep_list, ep_list) { + if (ep->caps.dir_in && !ep->claimed) + return ep; + } + } + + return NULL; +} + /** * Device operations part of the API to the USB controller hardware, * which don't involve endpoints (or i/o) @@ -1634,6 +1653,7 @@ static const struct usb_gadget_ops usb_g .vbus_draw = ci_udc_vbus_draw, .udc_start = ci_udc_start, .udc_stop = ci_udc_stop, + .match_ep = ci_udc_match_ep, };

static int init_eps(struct ci_hdrc *ci)

From: Mathias Nyman mathias.nyman@linux.intel.com

commit b8c3b718087bf7c3c8e388eb1f72ac1108a4926e upstream.

A USB3 device needs to be reset and re-enumarated if the port it connects to goes to a error state, with link state inactive.

There is no use in trying to recover failed transactions by resetting endpoints at this stage. Tests show that in rare cases, after multiple endpoint resets of a roothub port the whole host controller might stop completely.

Several retries to recover from transaction error can happen as it can take a long time before the hub thread discovers the USB3 port error and inactive link.

We can't reliably detect the port error from slot or endpoint context due to a limitation in xhci, see xhci specs section 4.8.3: "There are several cases where the EP State field in the Output Endpoint Context may not reflect the current state of an endpoint" and "Software should maintain an accurate value for EP State, by tracking it with an internal variable that is driven by Events and Doorbell accesses"

Same appears to be true for slot state.

set a flag to the corresponding slot if a USB3 roothub port link goes inactive to prevent both queueing new URBs and resetting endpoints.

Reported-by: Rapolu Chiranjeevi chiranjeevi.rapolu@intel.com Tested-by: Rapolu Chiranjeevi chiranjeevi.rapolu@intel.com Cc: stable@vger.kernel.org Signed-off-by: Mathias Nyman mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/usb/host/xhci-ring.c | 15 ++++++++++++++- drivers/usb/host/xhci.c | 5 +++++ drivers/usb/host/xhci.h | 9 +++++++++ 3 files changed, 28 insertions(+), 1 deletion(-)

--- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1604,8 +1604,13 @@ static void handle_port_status(struct xh usb_hcd_resume_root_hub(hcd); }

- if (hcd->speed >= HCD_USB3 && (portsc & PORT_PLS_MASK) == XDEV_INACTIVE) + if (hcd->speed >= HCD_USB3 && + (portsc & PORT_PLS_MASK) == XDEV_INACTIVE) { + slot_id = xhci_find_slot_id_by_port(hcd, xhci, hcd_portnum + 1); + if (slot_id && xhci->devs[slot_id]) + xhci->devs[slot_id]->flags |= VDEV_PORT_ERROR; bus_state->port_remote_wakeup &= ~(1 << hcd_portnum); + }

if ((portsc & PORT_PLC) && (portsc & PORT_PLS_MASK) == XDEV_RESUME) { xhci_dbg(xhci, "port resume event for port %d\n", port_id); @@ -1793,6 +1798,14 @@ static void xhci_cleanup_halted_endpoint { struct xhci_virt_ep *ep = &xhci->devs[slot_id]->eps[ep_index]; struct xhci_command *command; + + /* + * Avoid resetting endpoint if link is inactive. Can cause host hang. + * Device will be reset soon to recover the link so don't do anything + */ + if (xhci->devs[slot_id]->flags & VDEV_PORT_ERROR) + return; + command = xhci_alloc_command(xhci, false, GFP_ATOMIC); if (!command) return; --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1441,6 +1441,10 @@ static int xhci_urb_enqueue(struct usb_h xhci_dbg(xhci, "urb submitted during PCI suspend\n"); return -ESHUTDOWN; } + if (xhci->devs[slot_id]->flags & VDEV_PORT_ERROR) { + xhci_dbg(xhci, "Can't queue urb, port error, link inactive\n"); + return -ENODEV; + }

if (usb_endpoint_xfer_isoc(&urb->ep->desc)) num_tds = urb->number_of_packets; @@ -3724,6 +3728,7 @@ static int xhci_discover_or_reset_device } /* If necessary, update the number of active TTs on this root port */ xhci_update_tt_active_eps(xhci, virt_dev, old_active_eps); + virt_dev->flags = 0; ret = 0;

command_cleanup: --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1010,6 +1010,15 @@ struct xhci_virt_device { u8 real_port; struct xhci_interval_bw_table *bw_table; struct xhci_tt_bw_info *tt_info; + /* + * flags for state tracking based on events and issued commands. + * Software can not rely on states from output contexts because of + * latency between events and xHC updating output context values. + * See xhci 1.1 section 4.8.3 for more details + */ + unsigned long flags; +#define VDEV_PORT_ERROR BIT(0) /* Port error, link inactive */ + /* The current max exit latency for the enabled USB3 link states. */ u16 current_mel; /* Used for the debugfs interfaces. */

From: Mike Marciniszyn mike.marciniszyn@intel.com

commit 3230f4a8d44e4a0bb7afea814b280b5129521f52 upstream.

The following warning can happen when a memory shortage occurs during txreq allocation:

[10220.939246] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [10220.939246] Hardware name: Intel Corporation S2600WT2R/S2600WT2R, BIOS SE5C610.86B.01.01.0018.C4.072020161249 07/20/2016 [10220.939247] cache: mnt_cache, object size: 384, buffer size: 384, default order: 2, min order: 0 [10220.939260] Workqueue: hfi0_0 _hfi1_do_send [hfi1] [10220.939261] node 0: slabs: 1026568, objs: 43115856, free: 0 [10220.939262] Call Trace: [10220.939262] node 1: slabs: 820872, objs: 34476624, free: 0 [10220.939263] dump_stack+0x5a/0x73 [10220.939265] warn_alloc+0x103/0x190 [10220.939267] ? wake_all_kswapds+0x54/0x8b [10220.939268] __alloc_pages_slowpath+0x86c/0xa2e [10220.939270] ? __alloc_pages_nodemask+0x2fe/0x320 [10220.939271] __alloc_pages_nodemask+0x2fe/0x320 [10220.939273] new_slab+0x475/0x550 [10220.939275] ___slab_alloc+0x36c/0x520 [10220.939287] ? hfi1_make_rc_req+0x90/0x18b0 [hfi1] [10220.939299] ? __get_txreq+0x54/0x160 [hfi1] [10220.939310] ? hfi1_make_rc_req+0x90/0x18b0 [hfi1] [10220.939312] __slab_alloc+0x40/0x61 [10220.939323] ? hfi1_make_rc_req+0x90/0x18b0 [hfi1] [10220.939325] kmem_cache_alloc+0x181/0x1b0 [10220.939336] hfi1_make_rc_req+0x90/0x18b0 [hfi1] [10220.939348] ? hfi1_verbs_send_dma+0x386/0xa10 [hfi1] [10220.939359] ? find_prev_entry+0xb0/0xb0 [hfi1] [10220.939371] hfi1_do_send+0x1d9/0x3f0 [hfi1] [10220.939372] process_one_work+0x171/0x380 [10220.939374] worker_thread+0x49/0x3f0 [10220.939375] kthread+0xf8/0x130 [10220.939377] ? max_active_store+0x80/0x80 [10220.939378] ? kthread_bind+0x10/0x10 [10220.939379] ret_from_fork+0x35/0x40 [10220.939381] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC)

The shortage is handled properly so the message isn't needed. Silence by adding the no warn option to the slab allocation.

Fixes: 45842abbb292 ("staging/rdma/hfi1: move txreq header code") Cc: stable@vger.kernel.org Reviewed-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Mike Marciniszyn mike.marciniszyn@intel.com Signed-off-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/infiniband/hw/hfi1/verbs_txreq.c | 2 +- drivers/infiniband/hw/hfi1/verbs_txreq.h | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/infiniband/hw/hfi1/verbs_txreq.c +++ b/drivers/infiniband/hw/hfi1/verbs_txreq.c @@ -100,7 +100,7 @@ struct verbs_txreq *__get_txreq(struct h if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK) { struct hfi1_qp_priv *priv;

- tx = kmem_cache_alloc(dev->verbs_txreq_cache, GFP_ATOMIC); + tx = kmem_cache_alloc(dev->verbs_txreq_cache, VERBS_TXREQ_GFP); if (tx) goto out; priv = qp->priv; --- a/drivers/infiniband/hw/hfi1/verbs_txreq.h +++ b/drivers/infiniband/hw/hfi1/verbs_txreq.h @@ -72,6 +72,7 @@ struct hfi1_ibdev; struct verbs_txreq *__get_txreq(struct hfi1_ibdev *dev, struct rvt_qp *qp);

+#define VERBS_TXREQ_GFP (GFP_ATOMIC | __GFP_NOWARN) static inline struct verbs_txreq *get_txreq(struct hfi1_ibdev *dev, struct rvt_qp *qp) __must_hold(&qp->slock) @@ -79,7 +80,7 @@ static inline struct verbs_txreq *get_tx struct verbs_txreq *tx; struct hfi1_qp_priv *priv = qp->priv;

- tx = kmem_cache_alloc(dev->verbs_txreq_cache, GFP_ATOMIC); + tx = kmem_cache_alloc(dev->verbs_txreq_cache, VERBS_TXREQ_GFP); if (unlikely(!tx)) { /* call slow path to get the lock */ tx = __get_txreq(dev, qp);

From: Alexander Mikhaylenko exalm7659@gmail.com

commit 9843f3e08e2144724be7148e08d77a195dea257a upstream.

They are capable of using intertouch and it works well with psmouse.synaptics_intertouch=1, so add them to the list.

Without it, scrolling and gestures are jumpy, three-finger pinch gesture doesn't work and three- or four-finger swipes sometimes get stuck.

Signed-off-by: Alexander Mikhaylenko exalm7659@gmail.com Reviewed-by: Benjamin Tissoires benjamin.tissoires@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/input/mouse/synaptics.c | 2 ++ 1 file changed, 2 insertions(+)

--- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -179,6 +179,8 @@ static const char * const smbus_pnp_ids[ "LEN0096", /* X280 */ "LEN0097", /* X280 -> ALPS trackpoint */ "LEN200f", /* T450s */ + "LEN2054", /* E480 */ + "LEN2055", /* E580 */ "SYN3052", /* HP EliteBook 840 G4 */ "SYN3221", /* HP 15-ay000 */ NULL

From: Daniel Smith danct12@disroot.org

commit 0e658060e5fc50dc282885dc424a94b5d95547e5 upstream.

On Chuwi Hi10 Plus, the Silead device id is MSSL0017.

Signed-off-by: Daniel Smith danct12@disroot.org Reviewed-by: Hans de Goede hdegoede@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/input/touchscreen/silead.c | 1 + 1 file changed, 1 insertion(+)

--- a/drivers/input/touchscreen/silead.c +++ b/drivers/input/touchscreen/silead.c @@ -604,6 +604,7 @@ static const struct acpi_device_id silea { "MSSL1680", 0 }, { "MSSL0001", 0 }, { "MSSL0002", 0 }, + { "MSSL0017", 0 }, { } }; MODULE_DEVICE_TABLE(acpi, silead_ts_acpi_match);

From: Jann Horn jannh@google.com

commit 8404d7a674c49278607d19726e0acc0cae299357 upstream.

A packed AppArmor policy contains null-terminated tag strings that are read by unpack_nameX(). However, unpack_nameX() uses string functions on them without ensuring that they are actually null-terminated, potentially leading to out-of-bounds accesses.

Make sure that the tag string is null-terminated before passing it to strcmp().

Cc: stable@vger.kernel.org Fixes: 736ec752d95e ("AppArmor: policy routines for loading and unpacking policy") Signed-off-by: Jann Horn jannh@google.com Signed-off-by: John Johansen john.johansen@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- security/apparmor/policy_unpack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/security/apparmor/policy_unpack.c +++ b/security/apparmor/policy_unpack.c @@ -276,7 +276,7 @@ static bool unpack_nameX(struct aa_ext * char *tag = NULL; size_t size = unpack_u16_chunk(e, &tag); /* if a name is specified it must match. otherwise skip tag */ - if (name && (!size || strcmp(name, tag))) + if (name && (!size || tag[size-1] != '\0' || strcmp(name, tag))) goto fail; } else if (name) { /* if a name is specified and there is no name tag fail */

From: Douglas Anderson dianders@chromium.org

commit 65dade6044079a5c206fd1803642ff420061417a upstream.

When Broadcom SDIO cards are idled they go to sleep and a whole separate subsystem takes over their SDIO communication. This is the Always-On-Subsystem (AOS) and it can't handle tuning requests.

Specifically, as tested on rk3288-veyron-minnie (which reports having BCM4354/1 in dmesg), if I force a retune in brcmf_sdio_kso_control() when "on = 1" (aka we're transition from sleep to wake) by whacking: bus->sdiodev->func1->card->host->need_retune = 1 ...then I can often see tuning fail. In this case dw_mmc reports "All phases bad!"). Note that I don't get 100% failure, presumably because sometimes the card itself has already transitioned away from the AOS itself by the time we try to wake it up. If I force retuning when "on = 0" (AKA force retuning right before sending the command to go to sleep) then retuning is always OK.

NOTE: we need _both_ this patch and the patch to avoid triggering tuning due to CRC errors in the sleep/wake transition, AKA ("brcmfmac: sdio: Disable auto-tuning around commands expected to fail"). Though both patches handle issues with Broadcom's AOS, the problems are distinct: 1. We want to defer (but not ignore) asynchronous (like timer-requested) tuning requests till the card is awake. However, we want to ignore CRC errors during the transition, we don't want to queue deferred tuning request. 2. You could imagine that the AOS could implement retuning but we could still get errors while transitioning in and out of the AOS. Similarly you could imagine a seamless transition into and out of the AOS (with no CRC errors) even if the AOS couldn't handle tuning.

ALSO NOTE: presumably there is never a desperate need to retune in order to wake up the card, since doing so is impossible. Luckily the only way the card can get into sleep state is if we had a good enough tuning to send it the command to put it into sleep, so presumably that "good enough" tuning is enough to wake us up, at least with a few retries.

Cc: stable@vger.kernel.org #v4.18+ Signed-off-by: Douglas Anderson dianders@chromium.org Acked-by: Adrian Hunter adrian.hunter@intel.com Reviewed-by: Arend van Spriel arend.vanspriel@broadcom.com Acked-by: Kalle Valo kvalo@codeaurora.org Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 7 +++++++ 1 file changed, 7 insertions(+)

--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -669,6 +669,10 @@ brcmf_sdio_kso_control(struct brcmf_sdio

sdio_retune_crc_disable(bus->sdiodev->func1);

+ /* Cannot re-tune if device is asleep; defer till we're awake */ + if (on) + sdio_retune_hold_now(bus->sdiodev->func1); + wr_val = (on << SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT); /* 1st KSO write goes to AOS wake up core if device is asleep */ brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR, wr_val, &err); @@ -721,6 +725,9 @@ brcmf_sdio_kso_control(struct brcmf_sdio if (try_cnt > MAX_KSO_ATTEMPTS) brcmf_err("max tries: rd_val=0x%x err=%d\n", rd_val, err);

+ if (on) + sdio_retune_release(bus->sdiodev->func1); + sdio_retune_crc_enable(bus->sdiodev->func1);

return err;

[ Upstream commit 0788611c9a0925c607de536b2449de5ed98ef8df ]

In the unlikely event that axi_desc_get returns a null desc in the very first iteration of the while-loop the error exit path ends up calling axi_desc_put on a null pointer 'first' and this causes a null pointer dereference. Fix this by adding a null check on pointer 'first' before calling axi_desc_put.

Addresses-Coverity: ("Explicit null dereference") Fixes: 1fe20f1b8454 ("dmaengine: Introduce DW AXI DMAC driver") Signed-off-by: Colin Ian King colin.king@canonical.com Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c index c4eb55e3011c..c05ef7f1d7b6 100644 --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c @@ -512,7 +512,8 @@ dma_chan_prep_dma_memcpy(struct dma_chan *dchan, dma_addr_t dst_adr, return vchan_tx_prep(&chan->vc, &first->vd, flags);

err_desc_get: - axi_desc_put(first); + if (first) + axi_desc_put(first); return NULL; }

[ Upstream commit ecc906a11c2a0940e1a380debd8bd5bc09faf454 ]

GMAC controller on HSDK boards supports 256 Hash Table size so we need to add the multicast filter bins property. This allows for the Hash filter to work properly using stmmac driver.

Cc: Joao Pinto jpinto@synopsys.com Cc: Rob Herring robh+dt@kernel.org Cc: Mark Rutland mark.rutland@arm.com Cc: Eugeniy Paltsev Eugeniy.Paltsev@synopsys.com Acked-by: Alexey Brodkin abrodkin@synopsys.com Signed-off-by: Jose Abreu joabreu@synopsys.com Signed-off-by: Vineet Gupta vgupta@synopsys.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arc/boot/dts/hsdk.dts | 1 + 1 file changed, 1 insertion(+)

diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index ef149f59929a..f67f614ccb0e 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -175,6 +175,7 @@ interrupt-names = "macirq"; phy-mode = "rgmii"; snps,pbl = <32>; + snps,multicast-filter-bins = <256>; clocks = <&gmacclk>; clock-names = "stmmaceth"; phy-handle = <&phy0>;

[ Upstream commit 13069847a475b60069918dc9971f5adb42811ce3 ]

dma_mapping_error() was being called on a different device struct than what was passed to map/unmap. Besides rendering the error checking ineffective, it caused a debug splat with CONFIG_DMA_API_DEBUG.

Signed-off-by: Scott Wood swood@redhat.com Acked-by: Wu Hao hao.wu@intel.com Acked-by: Moritz Fischer mdf@kernel.org Acked-by: Alan Tull atull@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/fpga/dfl-afu-dma-region.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-region.c index 0e81d33af856..c9a613dc9eb7 100644 --- a/drivers/fpga/dfl-afu-dma-region.c +++ b/drivers/fpga/dfl-afu-dma-region.c @@ -399,7 +399,7 @@ int afu_dma_map_region(struct dfl_feature_platform_data *pdata, region->pages[0], 0, region->length, DMA_BIDIRECTIONAL); - if (dma_mapping_error(&pdata->dev->dev, region->iova)) { + if (dma_mapping_error(dfl_fpga_pdata_to_parent(pdata), region->iova)) { dev_err(&pdata->dev->dev, "failed to map for dma\n"); ret = -EFAULT; goto unpin_pages;

[ Upstream commit 1c7ebeabc9e5ee12e42075a597de40fdb9059530 ]

BUG: memory leak unreferenced object 0xffff8881df48cda0 (size 16): comm "syz-executor.0", pid 5077, jiffies 4295994670 (age 22.280s) hex dump (first 16 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000d2d0d5fe>] parport_register_dev_model+0x141/0x6e0 [parport] [<00000000782f6dab>] 0xffffffffc15d1196 [<00000000d2ca6ae4>] platform_drv_probe+0x7e/0x100 [<00000000628c2a94>] really_probe+0x342/0x4d0 [<000000006874f5da>] driver_probe_device+0x8c/0x170 [<00000000424de37a>] __device_attach_driver+0xda/0x100 [<000000002acab09a>] bus_for_each_drv+0xfe/0x170 [<000000003d9e5f31>] __device_attach+0x190/0x230 [<0000000035d32f80>] bus_probe_device+0x123/0x140 [<00000000a05ba627>] device_add+0x7cc/0xce0 [<000000003f7560bf>] platform_device_add+0x230/0x3c0 [<000000002a0be07d>] 0xffffffffc15d0949 [<000000007361d8d2>] port_check+0x3b/0x50 [parport] [<000000004d67200f>] bus_for_each_dev+0x115/0x180 [<000000003ccfd11c>] __parport_register_driver+0x1f0/0x210 [parport] [<00000000987f06fc>] 0xffffffffc15d803e

After commit 4e5a74f1db8d ("parport: Revert "parport: fix memory leak""), free_pardevice do not free par_dev->state, we should free it in error path of parport_register_dev_model before return.

Reported-by: Hulk Robot hulkci@huawei.com Fixes: 4e5a74f1db8d ("parport: Revert "parport: fix memory leak"") Signed-off-by: YueHaibing yuehaibing@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/parport/share.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/parport/share.c b/drivers/parport/share.c index 5dc53d420ca8..7b4ee33c1935 100644 --- a/drivers/parport/share.c +++ b/drivers/parport/share.c @@ -895,6 +895,7 @@ parport_register_dev_model(struct parport *port, const char *name, par_dev->devmodel = true; ret = device_register(&par_dev->dev); if (ret) { + kfree(par_dev->state); put_device(&par_dev->dev); goto err_put_port; } @@ -912,6 +913,7 @@ parport_register_dev_model(struct parport *port, const char *name, spin_unlock(&port->physport->pardevice_lock); pr_debug("%s: cannot grant exclusive access for device %s\n", port->name, name); + kfree(par_dev->state); device_unregister(&par_dev->dev); goto err_put_port; }

[ Upstream commit 2abae62a26a265129b364d8c1ef3be55e2c01309 ]

The qpn allocation logic has a WARN_ON() that intends to detect the use of an index that will introduce bits in the lower order bits of the QOS bits in the QPN.

Unfortunately, it has the following bugs: - it misfires when wrapping QPN allocation for non-QOS - it doesn't correctly detect low order QOS bits (despite the comment)

The WARN_ON() should not be applied to non-QOS (qos_shift == 1).

Additionally, it SHOULD test the qpn bits per the table below:

2 data VLs: [qp7, qp6, qp5, qp4, qp3, qp2, qp1] ^ [ 0, 0, 0, 0, 0, 0, sc0], qp bit 1 always 0* 3-4 data VLs: [qp7, qp6, qp5, qp4, qp3, qp2, qp1] ^ [ 0, 0, 0, 0, 0, sc1, sc0], qp bits [21] always 0 5-8 data VLs: [qp7, qp6, qp5, qp4, qp3, qp2, qp1] ^ [ 0, 0, 0, 0, sc2, sc1, sc0] qp bits [321] always 0

Fix by qualifying the warning for qos_shift > 1 and producing the correct mask to insure the above bits are zero without generating a superfluous warning.

Fixes: 501edc42446e ("IB/rdmavt: Correct warning during QPN allocation") Reviewed-by: Kaike Wan kaike.wan@intel.com Signed-off-by: Mike Marciniszyn mike.marciniszyn@intel.com Signed-off-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/sw/rdmavt/qp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c index 5ce403c6cddb..7d03680afd91 100644 --- a/drivers/infiniband/sw/rdmavt/qp.c +++ b/drivers/infiniband/sw/rdmavt/qp.c @@ -412,7 +412,8 @@ static int alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt, offset = qpt->incr | ((offset & 1) ^ 1); } /* there can be no set bits in low-order QoS bits */ - WARN_ON(offset & (BIT(rdi->dparms.qos_shift) - 1)); + WARN_ON(rdi->dparms.qos_shift > 1 && + offset & ((BIT(rdi->dparms.qos_shift - 1) - 1) << 1)); qpn = mk_qpn(qpt, map, offset); }

[ Upstream commit 35164f5259a47ea756fa1deb3e463ac2a4f10dc9 ]

The command 'ibv_devinfo -v' reports 0 for max_mr.

Fix by assigning the query values after the mr lkey_table has been built rather than early on in the driver.

Fixes: 7b1e2099adc8 ("IB/rdmavt: Move memory registration into rdmavt") Reviewed-by: Josh Collier josh.d.collier@intel.com Signed-off-by: Mike Marciniszyn mike.marciniszyn@intel.com Signed-off-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/hfi1/verbs.c | 2 -- drivers/infiniband/hw/qib/qib_verbs.c | 2 -- drivers/infiniband/sw/rdmavt/mr.c | 2 ++ 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c index 48692adbe811..27d9c4cefdc7 100644 --- a/drivers/infiniband/hw/hfi1/verbs.c +++ b/drivers/infiniband/hw/hfi1/verbs.c @@ -1418,8 +1418,6 @@ static void hfi1_fill_device_attr(struct hfi1_devdata *dd) rdi->dparms.props.max_cq = hfi1_max_cqs; rdi->dparms.props.max_ah = hfi1_max_ahs; rdi->dparms.props.max_cqe = hfi1_max_cqes; - rdi->dparms.props.max_mr = rdi->lkey_table.max; - rdi->dparms.props.max_fmr = rdi->lkey_table.max; rdi->dparms.props.max_map_per_fmr = 32767; rdi->dparms.props.max_pd = hfi1_max_pds; rdi->dparms.props.max_qp_rd_atom = HFI1_MAX_RDMA_ATOMIC; diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index 41babbc0db58..803c3544c75b 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -1495,8 +1495,6 @@ static void qib_fill_device_attr(struct qib_devdata *dd) rdi->dparms.props.max_cq = ib_qib_max_cqs; rdi->dparms.props.max_cqe = ib_qib_max_cqes; rdi->dparms.props.max_ah = ib_qib_max_ahs; - rdi->dparms.props.max_mr = rdi->lkey_table.max; - rdi->dparms.props.max_fmr = rdi->lkey_table.max; rdi->dparms.props.max_map_per_fmr = 32767; rdi->dparms.props.max_qp_rd_atom = QIB_MAX_RDMA_ATOMIC; rdi->dparms.props.max_qp_init_rd_atom = 255; diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c index 5819c9d6ffdc..39d101df229d 100644 --- a/drivers/infiniband/sw/rdmavt/mr.c +++ b/drivers/infiniband/sw/rdmavt/mr.c @@ -96,6 +96,8 @@ int rvt_driver_mr_init(struct rvt_dev_info *rdi) for (i = 0; i < rdi->lkey_table.max; i++) RCU_INIT_POINTER(rdi->lkey_table.table[i], NULL);

+ rdi->dparms.props.max_mr = rdi->lkey_table.max; + rdi->dparms.props.max_fmr = rdi->lkey_table.max; return 0; }

[ Upstream commit f532beeeff0c0a3586cc15538bc52d249eb19e7c ]

Fixes gcc '-Wunused-but-set-variable' warning:

arch/mips/kernel/uprobes.c: In function 'arch_uprobe_pre_xol': arch/mips/kernel/uprobes.c:115:17: warning: variable 'epc' set but not used [-Wunused-but-set-variable]

It's never used since introduction in commit 40e084a506eb ("MIPS: Add uprobes support.")

Signed-off-by: YueHaibing yuehaibing@huawei.com Signed-off-by: Paul Burton paul.burton@mips.com Cc: ralf@linux-mips.org Cc: jhogan@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@vger.kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/kernel/uprobes.c | 3 --- 1 file changed, 3 deletions(-)

diff --git a/arch/mips/kernel/uprobes.c b/arch/mips/kernel/uprobes.c index 4aaff3b3175c..6dbe4eab0a0e 100644 --- a/arch/mips/kernel/uprobes.c +++ b/arch/mips/kernel/uprobes.c @@ -112,9 +112,6 @@ int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs) */ aup->resume_epc = regs->cp0_epc + 4; if (insn_has_delay_slot((union mips_instruction) aup->insn[0])) { - unsigned long epc; - - epc = regs->cp0_epc; __compute_return_epc_for_insn(regs, (union mips_instruction) aup->insn[0]); aup->resume_epc = regs->cp0_epc;

[ Upstream commit f6131f28057d4fd8922599339e701a2504e0f23d ]

The cgroup testing relies on the root cgroup's subtree_control setting, If the 'memory' controller isn't set, all test cases will be failed as following:

$ sudo ./test_memcontrol not ok 1 test_memcg_subtree_control not ok 2 test_memcg_current ok 3 # skip test_memcg_min not ok 4 test_memcg_low not ok 5 test_memcg_high not ok 6 test_memcg_max not ok 7 test_memcg_oom_events ok 8 # skip test_memcg_swap_max not ok 9 test_memcg_sock not ok 10 test_memcg_oom_group_leaf_events not ok 11 test_memcg_oom_group_parent_events not ok 12 test_memcg_oom_group_score_events

To correct this unexpected failure, this patch write the 'memory' to subtree_control of root to get a right result.

Signed-off-by: Alex Shi alex.shi@linux.alibaba.com Cc: Shuah Khan shuah@kernel.org Cc: Roman Gushchin guro@fb.com Cc: Tejun Heo tj@kernel.org Cc: Mike Rapoport rppt@linux.vnet.ibm.com Cc: Jay Kamat jgkamat@fb.com Cc: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Roman Gushchin guro@fb.com Acked-by: Tejun Heo tj@kernel.org Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/cgroup/test_memcontrol.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c index 6f339882a6ca..c19a97dd02d4 100644 --- a/tools/testing/selftests/cgroup/test_memcontrol.c +++ b/tools/testing/selftests/cgroup/test_memcontrol.c @@ -1205,6 +1205,10 @@ int main(int argc, char **argv) if (cg_read_strstr(root, "cgroup.controllers", "memory")) ksft_exit_skip("memory controller isn't available\n");

+ if (cg_read_strstr(root, "cgroup.subtree_control", "memory")) + if (cg_write(root, "cgroup.subtree_control", "+memory")) + ksft_exit_skip("Failed to set memory controller\n"); + for (i = 0; i < ARRAY_SIZE(tests); i++) { switch (tests[i].fn(root)) { case KSFT_PASS:

[ Upstream commit f97f3f8839eb9de5843066d80819884f7722c8c5 ]

The test_core will skip the test_cgcore_no_internal_process_constraint_on_threads test case if the 'cpu' controller missing in root's subtree_control. In fact we need to set the 'cpu' in subtree_control, to make the testing meaningful.

./test_core ... ok 4 # skip test_cgcore_no_internal_process_constraint_on_threads ...

Signed-off-by: Alex Shi alex.shi@linux.alibaba.com Cc: Shuah Khan shuah@kernel.org Cc: Tejun Heo tj@kernel.org Cc: Roman Gushchin guro@fb.com Cc: Claudio Zumbo claudioz@fb.com Cc: Claudio claudiozumbo@gmail.com Cc: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Roman Gushchin guro@fb.com Acked-by: Tejun Heo tj@kernel.org Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/cgroup/test_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/cgroup/test_core.c b/tools/testing/selftests/cgroup/test_core.c index d78f1c5366d3..79053a4f4783 100644 --- a/tools/testing/selftests/cgroup/test_core.c +++ b/tools/testing/selftests/cgroup/test_core.c @@ -198,7 +198,7 @@ static int test_cgcore_no_internal_process_constraint_on_threads(const char *roo char *parent = NULL, *child = NULL;

if (cg_read_strstr(root, "cgroup.controllers", "cpu") || - cg_read_strstr(root, "cgroup.subtree_control", "cpu")) { + cg_write(root, "cgroup.subtree_control", "+cpu")) { ret = KSFT_SKIP; goto cleanup; }

[ Upstream commit 62394708f3e01c9f2be6be74eb6305bae1ed924f ]

When non-bridged, non-vlan'ed mv88e6xxx port is moving down, error message is logged:

failed to kill vid 0081/0 for device eth_cu_1000_4

This is caused by call from __vlan_vid_del() with vin set to zero, over call chain this results into _mv88e6xxx_port_vlan_del() called with vid=0, and mv88e6xxx_vtu_get() called from there returns -EINVAL.

On symmetric path moving port up, call goes through mv88e6xxx_port_vlan_prepare() that calls mv88e6xxx_port_check_hw_vlan() that returns -EOPNOTSUPP for zero vid.

This patch changes mv88e6xxx_vtu_get() to also return -EOPNOTSUPP for zero vid, then this error code is explicitly cleared in dsa_slave_vlan_rx_kill_vid() and error message is no longer logged.

Signed-off-by: Nikita Yushchenko nikita.yoush@cogentembedded.com Reviewed-by: Vivien Didelot vivien.didelot@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/dsa/mv88e6xxx/chip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index dfaad1c2c2b8..411cfb806459 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1484,7 +1484,7 @@ static int mv88e6xxx_vtu_get(struct mv88e6xxx_chip *chip, u16 vid, int err;

if (!vid) - return -EINVAL; + return -EOPNOTSUPP;

entry->vid = vid - 1; entry->valid = false;

[ Upstream commit 80caf43549e7e41a695c6d1e11066286538b336f ]

In get_vdev_port_node_info(), 'node_info->vdev_port.name' is allcoated by kstrdup_const(), and it returns NULL when fails. So 'node_info->vdev_port.name' should be checked.

Signed-off-by: Gen Zhang blackgod016574@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- arch/sparc/kernel/mdesc.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c index 39a2503fa3e1..51028abe5e90 100644 --- a/arch/sparc/kernel/mdesc.c +++ b/arch/sparc/kernel/mdesc.c @@ -357,6 +357,8 @@ static int get_vdev_port_node_info(struct mdesc_handle *md, u64 node,

node_info->vdev_port.id = *idp; node_info->vdev_port.name = kstrdup_const(name, GFP_KERNEL); + if (!node_info->vdev_port.name) + return -1; node_info->vdev_port.parent_cfg_hdl = *parent_cfg_hdlp;

return 0;

[ Upstream commit 9e4f56f1a7f3287718d0083b5cb85298dc05a5fd ]

Should hw_feature as hardware capability flags to check if hardware LRO got support.

Signed-off-by: Mark Lee mark-mc.lee@mediatek.com Signed-off-by: Sean Wang sean.wang@mediatek.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 6e6abdc399de..0c70fb345f83 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -2304,13 +2304,13 @@ static int mtk_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,

switch (cmd->cmd) { case ETHTOOL_GRXRINGS: - if (dev->features & NETIF_F_LRO) { + if (dev->hw_features & NETIF_F_LRO) { cmd->data = MTK_MAX_RX_RING_NUM; ret = 0; } break; case ETHTOOL_GRXCLSRLCNT: - if (dev->features & NETIF_F_LRO) { + if (dev->hw_features & NETIF_F_LRO) { struct mtk_mac *mac = netdev_priv(dev);

cmd->rule_cnt = mac->hwlro_ip_cnt; @@ -2318,11 +2318,11 @@ static int mtk_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, } break; case ETHTOOL_GRXCLSRULE: - if (dev->features & NETIF_F_LRO) + if (dev->hw_features & NETIF_F_LRO) ret = mtk_hwlro_get_fdir_entry(dev, cmd); break; case ETHTOOL_GRXCLSRLALL: - if (dev->features & NETIF_F_LRO) + if (dev->hw_features & NETIF_F_LRO) ret = mtk_hwlro_get_fdir_all(dev, cmd, rule_locs); break; @@ -2339,11 +2339,11 @@ static int mtk_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)

switch (cmd->cmd) { case ETHTOOL_SRXCLSRLINS: - if (dev->features & NETIF_F_LRO) + if (dev->hw_features & NETIF_F_LRO) ret = mtk_hwlro_add_ipaddr(dev, cmd); break; case ETHTOOL_SRXCLSRLDEL: - if (dev->features & NETIF_F_LRO) + if (dev->hw_features & NETIF_F_LRO) ret = mtk_hwlro_del_ipaddr(dev, cmd); break; default:

[ Upstream commit 6a88e0c14813d00f8520d0e16cd4136c6cf8b4d4 ]

This patch trying to fix monitor freeze issue caused by drm error 'flip_done timed out' on LS1028A platform. this set try is make a loop around the second setting CVAL and try like 5 times before giveing up.

Signed-off-by: Wen He wen.he_1@nxp.com Signed-off-by: Liviu Dudau liviu.dudau@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/arm/malidp_drv.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index 94d6dabec2dc..1ab511e33243 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -190,6 +190,7 @@ static void malidp_atomic_commit_hw_done(struct drm_atomic_state *state) { struct drm_device *drm = state->dev; struct malidp_drm *malidp = drm->dev_private; + int loop = 5;

malidp->event = malidp->crtc.state->event; malidp->crtc.state->event = NULL; @@ -204,8 +205,18 @@ static void malidp_atomic_commit_hw_done(struct drm_atomic_state *state) drm_crtc_vblank_get(&malidp->crtc);

/* only set config_valid if the CRTC is enabled */ - if (malidp_set_and_wait_config_valid(drm) < 0) + if (malidp_set_and_wait_config_valid(drm) < 0) { + /* + * make a loop around the second CVAL setting and + * try 5 times before giving up. + */ + while (loop--) { + if (!malidp_set_and_wait_config_valid(drm)) + break; + } DRM_DEBUG_DRIVER("timed out waiting for updated configuration\n"); + } + } else if (malidp->event) { /* CRTC inactive means vblank IRQ is disabled, send event directly */ spin_lock_irq(&drm->event_lock);

[ Upstream commit 1c810739097fdeb31b393b67a0a1e3d7ffdd9f63 ]

On the Arm Juno platform, the HDLCD pixel clock is constrained to 250KHz resolution in order to avoid the tiny System Control Processor spending aeons trying to calculate exact PLL coefficients. This means that modes like my oddball 1600x1200 with 130.89MHz clock get rejected since the rate cannot be matched exactly. In practice, though, this mode works quite happily with the clock at 131MHz, so let's relax the check to allow a little bit of slop.

Signed-off-by: Robin Murphy robin.murphy@arm.com Signed-off-by: Liviu Dudau liviu.dudau@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/arm/hdlcd_crtc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c index d5c1a0b1f01a..e69d996eabad 100644 --- a/drivers/gpu/drm/arm/hdlcd_crtc.c +++ b/drivers/gpu/drm/arm/hdlcd_crtc.c @@ -193,7 +193,8 @@ static enum drm_mode_status hdlcd_crtc_mode_valid(struct drm_crtc *crtc, long rate, clk_rate = mode->clock * 1000;

rate = clk_round_rate(hdlcd->clk, clk_rate); - if (rate != clk_rate) { + /* 0.1% seems a close enough tolerance for the TDA19988 on Juno */ + if (abs(rate - clk_rate) * 1000 > clk_rate) { /* clock required by mode not supported by hardware */ return MODE_NOCLOCK; }

[ Upstream commit 4f45d62a52297b10ded963412a158685647ecdec ]

The following error occurs for the `make ARCH=arm64 checkstack` case:

aarch64-linux-gnu-objdump -d vmlinux $(find . -name '*.ko') | \ perl ./scripts/checkstack.pl arm64 wrong or unknown architecture "arm64"

As suggested by Masahiro Yamada, fix the above error using regular expressions in the same way it was fixed for the `ARCH=x86` case via commit fda9f9903be6 ("scripts/checkstack.pl: automatically handle 32-bit and 64-bit mode for ARCH=x86").

Suggested-by: Masahiro Yamada yamada.masahiro@socionext.com Signed-off-by: George G. Davis george_davis@mentor.com Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com Signed-off-by: Sasha Levin sashal@kernel.org --- scripts/checkstack.pl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl index 34414c6efad6..a2c9e7f98e06 100755 --- a/scripts/checkstack.pl +++ b/scripts/checkstack.pl @@ -46,7 +46,7 @@ my (@stack, $re, $dre, $x, $xs, $funcre); $x = "[0-9a-f]"; # hex character $xs = "[0-9a-f ]"; # hex character or space $funcre = qr/^$x* <(.*)>:$/; - if ($arch eq 'aarch64') { + if ($arch =~ '^(aarch|arm)64$') { #ffffffc0006325cc: a9bb7bfd stp x29, x30, [sp, #-80]! $re = qr/^.*stp.*sp, #-([0-9]{1,8})]!/o; } elsif ($arch eq 'arm') {

[ Upstream commit cc8f52609bb4177febade24d11713e20c0893b0a ]

We need to drop the "ctrl_info->sync_request_sem" lock before returning.

Fixes: 6c223761eb54 ("smartpqi: initial commit of Microsemi smartpqi driver") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Acked-by: Don Brace don.brace@microsemi.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/smartpqi/smartpqi_init.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 411d656f2530..98f2d076f938 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -3697,8 +3697,10 @@ static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, return -ETIMEDOUT; msecs_blocked = jiffies_to_msecs(jiffies - start_jiffies); - if (msecs_blocked >= timeout_msecs) - return -ETIMEDOUT; + if (msecs_blocked >= timeout_msecs) { + rc = -ETIMEDOUT; + goto out; + } timeout_msecs -= msecs_blocked; } }

[ Upstream commit 335726195e460cb6b3f795b695bfd31f0ea70ef0 ]

Enabling sysfs attribute bridge_hostnotify triggers a series of udev events for the MAC addresses of all currently connected peers. In case no VLAN is set for a peer, the device reports the corresponding MAC addresses with VLAN ID 4096. This currently results in attribute VLAN=4096 for all non-VLAN interfaces in the initial series of events after host-notify is enabled.

Instead, no VLAN attribute should be reported in the udev event for non-VLAN interfaces.

Only the initial events face this issue. For dynamic changes that are reported later, the device uses a validity flag.

This also changes the code so that it now sets the VLAN attribute for MAC addresses with VID 0. On Linux, no qeth interface will ever be registered with VID 0: Linux kernel registers VID 0 on all network interfaces initially, but qeth will drop .ndo_vlan_rx_add_vid for VID 0. Peers with other OSs could register MACs with VID 0.

Fixes: 9f48b9db9a22 ("qeth: bridgeport support - address notifications") Signed-off-by: Alexandra Winter wintera@linux.ibm.com Signed-off-by: Julian Wiedmann jwi@linux.ibm.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/s390/net/qeth_l2_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index b7513c5848cf..c1c35eccd5b6 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -1901,7 +1901,7 @@ static void qeth_bridgeport_an_set_cb(void *priv,

l2entry = (struct qdio_brinfo_entry_l2 *)entry; code = IPA_ADDR_CHANGE_CODE_MACADDR; - if (l2entry->addr_lnid.lnid) + if (l2entry->addr_lnid.lnid < VLAN_N_VID) code |= IPA_ADDR_CHANGE_CODE_VLANID; qeth_bridge_emit_host_event(card, anev_reg_unreg, code, (struct net_if_token *)&l2entry->nit,

[ Upstream commit 4a60570dce658e3f8885bbcf852430b99f65aca5 ]

Some chips have attributes which exist on more than one page but the attribute is not presently marked as paged. This causes the attributes to be generated with the same label, which makes it impossible for userspace to tell them apart.

Marking all such attributes as paged would result in the page suffix being added regardless of whether they were present on more than one page or not, which might break existing setups. Therefore, we add a second check which treats the attribute as paged, even if not marked as such, if it is present on multiple pages.

Fixes: b4ce237b7f7d ("hwmon: (pmbus) Introduce infrastructure to detect sensors and limit registers") Signed-off-by: Robert Hancock hancock@sedsystems.ca Signed-off-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hwmon/pmbus/pmbus_core.c | 34 ++++++++++++++++++++++++++++---- 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index 2e2b5851139c..cd24b375df1e 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -1230,7 +1230,8 @@ static int pmbus_add_sensor_attrs_one(struct i2c_client *client, const struct pmbus_driver_info *info, const char *name, int index, int page, - const struct pmbus_sensor_attr *attr) + const struct pmbus_sensor_attr *attr, + bool paged) { struct pmbus_sensor *base; bool upper = !!(attr->gbit & 0xff00); /* need to check STATUS_WORD */ @@ -1238,7 +1239,7 @@ static int pmbus_add_sensor_attrs_one(struct i2c_client *client,

if (attr->label) { ret = pmbus_add_label(data, name, index, attr->label, - attr->paged ? page + 1 : 0); + paged ? page + 1 : 0); if (ret) return ret; } @@ -1271,6 +1272,30 @@ static int pmbus_add_sensor_attrs_one(struct i2c_client *client, return 0; }

+static bool pmbus_sensor_is_paged(const struct pmbus_driver_info *info, + const struct pmbus_sensor_attr *attr) +{ + int p; + + if (attr->paged) + return true; + + /* + * Some attributes may be present on more than one page despite + * not being marked with the paged attribute. If that is the case, + * then treat the sensor as being paged and add the page suffix to the + * attribute name. + * We don't just add the paged attribute to all such attributes, in + * order to maintain the un-suffixed labels in the case where the + * attribute is only on page 0. + */ + for (p = 1; p < info->pages; p++) { + if (info->func[p] & attr->func) + return true; + } + return false; +} + static int pmbus_add_sensor_attrs(struct i2c_client *client, struct pmbus_data *data, const char *name, @@ -1284,14 +1309,15 @@ static int pmbus_add_sensor_attrs(struct i2c_client *client, index = 1; for (i = 0; i < nattrs; i++) { int page, pages; + bool paged = pmbus_sensor_is_paged(info, attrs);

- pages = attrs->paged ? info->pages : 1; + pages = paged ? info->pages : 1; for (page = 0; page < pages; page++) { if (!(info->func[page] & attrs->func)) continue; ret = pmbus_add_sensor_attrs_one(client, data, info, name, index, page, - attrs); + attrs, paged); if (ret) return ret; index++;

[ Upstream commit c8e8c77b3bdbade6e26e8e76595f141ede12b692 ]

The Number of Namespaces (nn) field in the identify controller data structure is defined as u32 and the maximum allowed value in NVMe specification is 0xFFFFFFFEUL. This change fixes the possible overflow of the DIV_ROUND_UP() operation used in nvme_scan_ns_list() by casting the nn to u64.

Signed-off-by: Jaesoo Lee jalee@purestorage.com Reviewed-by: Christoph Hellwig hch@lst.de Signed-off-by: Sagi Grimberg sagi@grimberg.me Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/host/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index a867a139bb35..d8869d978c34 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3228,7 +3228,8 @@ static int nvme_scan_ns_list(struct nvme_ctrl *ctrl, unsigned nn) { struct nvme_ns *ns; __le32 *ns_list; - unsigned i, j, nsid, prev = 0, num_lists = DIV_ROUND_UP(nn, 1024); + unsigned i, j, nsid, prev = 0; + unsigned num_lists = DIV_ROUND_UP_ULL((u64)nn, 1024); int ret = 0;

ns_list = kzalloc(NVME_IDENTIFY_DATA_SIZE, GFP_KERNEL);

From: Anssi Hannula anssi.hannula@bitwise.fi

commit 904044dd8fff43e289c11a2f90fa532e946a1d8b upstream.

Commit 9e5f1b273e6a ("can: xilinx_can: add support for Xilinx CAN FD core") added a new can_bittiming_const structure for CAN FD cores that support larger values for tseg1, tseg2, and sjw than previous Xilinx CAN cores, but the commit did not actually take that into use.

Fix that.

Tested with CAN FD core on a ZynqMP board.

Fixes: 9e5f1b273e6a ("can: xilinx_can: add support for Xilinx CAN FD core") Reported-by: Shubhrajyoti Datta shubhrajyoti.datta@gmail.com Signed-off-by: Anssi Hannula anssi.hannula@bitwise.fi Cc: Michal Simek michal.simek@xilinx.com Reviewed-by: Shubhrajyoti Datta shubhrajyoti.datta@gmail.com Cc: linux-stable stable@vger.kernel.org Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/net/can/xilinx_can.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -1424,7 +1424,7 @@ static const struct xcan_devtype_data xc XCAN_FLAG_RXMNF | XCAN_FLAG_TX_MAILBOXES | XCAN_FLAG_RX_FIFO_MULTI, - .bittiming_const = &xcan_bittiming_const, + .bittiming_const = &xcan_bittiming_const_canfd, .btr_ts2_shift = XCAN_BTR_TS2_SHIFT_CANFD, .btr_sjw_shift = XCAN_BTR_SJW_SHIFT_CANFD, .bus_clk_name = "s_axi_aclk",

From: Willem de Bruijn willemb@google.com

commit fd704bd5ee749d560e86c4f1fd2ef486d8abf7cf upstream.

CAN supports software tx timestamps as of the below commit. Purge any queued timestamp packets on socket destroy.

Fixes: 51f31cabe3ce ("ip: support for TX timestamps on UDP and RAW sockets") Reported-by: syzbot+a90604060cb40f5bdd16@syzkaller.appspotmail.com Signed-off-by: Willem de Bruijn willemb@google.com Cc: linux-stable stable@vger.kernel.org Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- net/can/af_can.c | 1 + 1 file changed, 1 insertion(+)

--- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -105,6 +105,7 @@ EXPORT_SYMBOL(can_ioctl); static void can_sock_destruct(struct sock *sk) { skb_queue_purge(&sk->sk_receive_queue); + skb_queue_purge(&sk->sk_error_queue); }

static const struct can_proto *can_get_proto(int protocol)

From: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com

commit 758f2046ea040773ae8ea7f72dd3bbd8fa984501 upstream.

BPF_ALU64 div/mod operations are currently using signed division, unlike BPF_ALU32 operations. Fix the same. DIV64 and MOD64 overflow tests pass with this fix.

Fixes: 156d0e290e969c ("powerpc/ebpf/jit: Implement JIT compiler for extended BPF") Cc: stable@vger.kernel.org # v4.8+ Signed-off-by: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- arch/powerpc/include/asm/ppc-opcode.h | 1 + arch/powerpc/net/bpf_jit.h | 2 +- arch/powerpc/net/bpf_jit_comp64.c | 8 ++++---- 3 files changed, 6 insertions(+), 5 deletions(-)

--- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -336,6 +336,7 @@ #define PPC_INST_MULLI 0x1c000000 #define PPC_INST_DIVWU 0x7c000396 #define PPC_INST_DIVD 0x7c0003d2 +#define PPC_INST_DIVDU 0x7c000392 #define PPC_INST_RLWINM 0x54000000 #define PPC_INST_RLWIMI 0x50000000 #define PPC_INST_RLDICL 0x78000000 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -116,7 +116,7 @@ ___PPC_RA(a) | IMM_L(i)) #define PPC_DIVWU(d, a, b) EMIT(PPC_INST_DIVWU | ___PPC_RT(d) | \ ___PPC_RA(a) | ___PPC_RB(b)) -#define PPC_DIVD(d, a, b) EMIT(PPC_INST_DIVD | ___PPC_RT(d) | \ +#define PPC_DIVDU(d, a, b) EMIT(PPC_INST_DIVDU | ___PPC_RT(d) | \ ___PPC_RA(a) | ___PPC_RB(b)) #define PPC_AND(d, a, b) EMIT(PPC_INST_AND | ___PPC_RA(d) | \ ___PPC_RS(a) | ___PPC_RB(b)) --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -372,12 +372,12 @@ static int bpf_jit_build_body(struct bpf case BPF_ALU64 | BPF_DIV | BPF_X: /* dst /= src */ case BPF_ALU64 | BPF_MOD | BPF_X: /* dst %= src */ if (BPF_OP(code) == BPF_MOD) { - PPC_DIVD(b2p[TMP_REG_1], dst_reg, src_reg); + PPC_DIVDU(b2p[TMP_REG_1], dst_reg, src_reg); PPC_MULD(b2p[TMP_REG_1], src_reg, b2p[TMP_REG_1]); PPC_SUB(dst_reg, dst_reg, b2p[TMP_REG_1]); } else - PPC_DIVD(dst_reg, dst_reg, src_reg); + PPC_DIVDU(dst_reg, dst_reg, src_reg); break; case BPF_ALU | BPF_MOD | BPF_K: /* (u32) dst %= (u32) imm */ case BPF_ALU | BPF_DIV | BPF_K: /* (u32) dst /= (u32) imm */ @@ -405,7 +405,7 @@ static int bpf_jit_build_body(struct bpf break; case BPF_ALU64: if (BPF_OP(code) == BPF_MOD) { - PPC_DIVD(b2p[TMP_REG_2], dst_reg, + PPC_DIVDU(b2p[TMP_REG_2], dst_reg, b2p[TMP_REG_1]); PPC_MULD(b2p[TMP_REG_1], b2p[TMP_REG_1], @@ -413,7 +413,7 @@ static int bpf_jit_build_body(struct bpf PPC_SUB(dst_reg, dst_reg, b2p[TMP_REG_1]); } else - PPC_DIVD(dst_reg, dst_reg, + PPC_DIVDU(dst_reg, dst_reg, b2p[TMP_REG_1]); break; }

From: Faiz Abbas faiz_abbas@ti.com

commit c3c0b70cd3f801bded7a548198ee1c9851a0ca82 upstream.

Update the MMC2_HS200_MANUAL1 iodelay values to match with the latest dra76x data manual[1]. The new iodelay values will have better marginality and should prevent issues in corner cases.

Also this particular pinctrl-array is using spaces instead of tabs for spacing between the values and the comments. Fix this as well.

[1] http://www.ti.com/lit/ds/symlink/dra76p.pdf

Cc: stable@vger.kernel.org Signed-off-by: Faiz Abbas faiz_abbas@ti.com [tony@atomide.com: updated description with a bit more info] Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi | 40 +++++++++++++++--------------- 1 file changed, 20 insertions(+), 20 deletions(-)

--- a/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi +++ b/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi @@ -22,7 +22,7 @@ * * Datamanual Revisions: * - * DRA76x Silicon Revision 1.0: SPRS993A, Revised July 2017 + * DRA76x Silicon Revision 1.0: SPRS993E, Revised December 2018 * */

@@ -169,25 +169,25 @@ /* Corresponds to MMC2_HS200_MANUAL1 in datamanual */ mmc2_iodelay_hs200_conf: mmc2_iodelay_hs200_conf { pinctrl-pin-array = < - 0x190 A_DELAY_PS(384) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */ - 0x194 A_DELAY_PS(0) G_DELAY_PS(174) /* CFG_GPMC_A19_OUT */ - 0x1a8 A_DELAY_PS(410) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */ - 0x1ac A_DELAY_PS(85) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */ - 0x1b4 A_DELAY_PS(468) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */ - 0x1b8 A_DELAY_PS(139) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */ - 0x1c0 A_DELAY_PS(676) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */ - 0x1c4 A_DELAY_PS(69) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */ - 0x1d0 A_DELAY_PS(1062) G_DELAY_PS(154) /* CFG_GPMC_A23_OUT */ - 0x1d8 A_DELAY_PS(640) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */ - 0x1dc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */ - 0x1e4 A_DELAY_PS(356) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */ - 0x1e8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */ - 0x1f0 A_DELAY_PS(579) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */ - 0x1f4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */ - 0x1fc A_DELAY_PS(435) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */ - 0x200 A_DELAY_PS(36) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */ - 0x364 A_DELAY_PS(759) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */ - 0x368 A_DELAY_PS(72) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */ + 0x190 A_DELAY_PS(384) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */ + 0x194 A_DELAY_PS(350) G_DELAY_PS(174) /* CFG_GPMC_A19_OUT */ + 0x1a8 A_DELAY_PS(410) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */ + 0x1ac A_DELAY_PS(335) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */ + 0x1b4 A_DELAY_PS(468) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */ + 0x1b8 A_DELAY_PS(339) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */ + 0x1c0 A_DELAY_PS(676) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */ + 0x1c4 A_DELAY_PS(219) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */ + 0x1d0 A_DELAY_PS(1062) G_DELAY_PS(154) /* CFG_GPMC_A23_OUT */ + 0x1d8 A_DELAY_PS(640) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */ + 0x1dc A_DELAY_PS(150) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */ + 0x1e4 A_DELAY_PS(356) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */ + 0x1e8 A_DELAY_PS(150) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */ + 0x1f0 A_DELAY_PS(579) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */ + 0x1f4 A_DELAY_PS(200) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */ + 0x1fc A_DELAY_PS(435) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */ + 0x200 A_DELAY_PS(236) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */ + 0x364 A_DELAY_PS(759) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */ + 0x368 A_DELAY_PS(372) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */ >; };

From: Anisse Astier aastier@freebox.fr

commit 35341ca0614ab13e1ef34ad4f29a39e15ef31fa8 upstream.

Pulling linux/prctl.h into asm/ptrace.h in the arm64 UAPI headers causes userspace build issues for any program (e.g. strace and qemu) that includes both <sys/prctl.h> and <linux/ptrace.h> when using musl libc:

| error: redefinition of 'struct prctl_mm_map' | struct prctl_mm_map {

See https://github.com/foundriesio/meta-lmp/commit/6d4a106e191b5d79c41b9ac78fd32... for a public example of people working around this issue.

Although it's a bit grotty, fix this breakage by duplicating the prctl constant definitions. Since these are part of the kernel ABI, they cannot be changed in future and so it's not the end of the world to have them open-coded.

Fixes: 43d4da2c45b2 ("arm64/sve: ptrace and ELF coredump support") Cc: stable@vger.kernel.org Acked-by: Dave Martin Dave.Martin@arm.com Signed-off-by: Anisse Astier aastier@freebox.fr Signed-off-by: Will Deacon will.deacon@arm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- arch/arm64/include/uapi/asm/ptrace.h | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)

--- a/arch/arm64/include/uapi/asm/ptrace.h +++ b/arch/arm64/include/uapi/asm/ptrace.h @@ -64,8 +64,6 @@

#ifndef __ASSEMBLY__

-#include <linux/prctl.h> - /* * User structures for general purpose, floating point and debug registers. */ @@ -112,10 +110,10 @@ struct user_sve_header {

/* * Common SVE_PT_* flags: - * These must be kept in sync with prctl interface in <linux/ptrace.h> + * These must be kept in sync with prctl interface in <linux/prctl.h> */ -#define SVE_PT_VL_INHERIT (PR_SVE_VL_INHERIT >> 16) -#define SVE_PT_VL_ONEXEC (PR_SVE_SET_VL_ONEXEC >> 16) +#define SVE_PT_VL_INHERIT ((1 << 17) /* PR_SVE_VL_INHERIT */ >> 16) +#define SVE_PT_VL_ONEXEC ((1 << 18) /* PR_SVE_SET_VL_ONEXEC */ >> 16)

/*

From: Thomas Hellstrom thellstrom@vmware.com

commit cc0ba0d8624f210995924bb57a8b181ce8976606 upstream.

The HB port may not be available for various reasons. Either it has been disabled by a config option or by the hypervisor for other reasons. In that case, make sure we have a backup plan and use the backdoor port instead with a performance penalty.

Cc: stable@vger.kernel.org Fixes: 89da76fde68d ("drm/vmwgfx: Add VMWare host messaging capability") Signed-off-by: Thomas Hellstrom thellstrom@vmware.com Reviewed-by: Deepak Rawat drawat@vmware.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 146 ++++++++++++++++++++++++++++-------- 1 file changed, 117 insertions(+), 29 deletions(-)

--- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c @@ -136,6 +136,114 @@ static int vmw_close_channel(struct rpc_ return 0; }

+/** + * vmw_port_hb_out - Send the message payload either through the + * high-bandwidth port if available, or through the backdoor otherwise. + * @channel: The rpc channel. + * @msg: NULL-terminated message. + * @hb: Whether the high-bandwidth port is available. + * + * Return: The port status. + */ +static unsigned long vmw_port_hb_out(struct rpc_channel *channel, + const char *msg, bool hb) +{ + unsigned long si, di, eax, ebx, ecx, edx; + unsigned long msg_len = strlen(msg); + + if (hb) { + unsigned long bp = channel->cookie_high; + + si = (uintptr_t) msg; + di = channel->cookie_low; + + VMW_PORT_HB_OUT( + (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG, + msg_len, si, di, + VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16), + VMW_HYPERVISOR_MAGIC, bp, + eax, ebx, ecx, edx, si, di); + + return ebx; + } + + /* HB port not available. Send the message 4 bytes at a time. */ + ecx = MESSAGE_STATUS_SUCCESS << 16; + while (msg_len && (HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS)) { + unsigned int bytes = min_t(size_t, msg_len, 4); + unsigned long word = 0; + + memcpy(&word, msg, bytes); + msg_len -= bytes; + msg += bytes; + si = channel->cookie_high; + di = channel->cookie_low; + + VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_SENDPAYLOAD << 16), + word, si, di, + VMW_HYPERVISOR_PORT | (channel->channel_id << 16), + VMW_HYPERVISOR_MAGIC, + eax, ebx, ecx, edx, si, di); + } + + return ecx; +} + +/** + * vmw_port_hb_in - Receive the message payload either through the + * high-bandwidth port if available, or through the backdoor otherwise. + * @channel: The rpc channel. + * @reply: Pointer to buffer holding reply. + * @reply_len: Length of the reply. + * @hb: Whether the high-bandwidth port is available. + * + * Return: The port status. + */ +static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply, + unsigned long reply_len, bool hb) +{ + unsigned long si, di, eax, ebx, ecx, edx; + + if (hb) { + unsigned long bp = channel->cookie_low; + + si = channel->cookie_high; + di = (uintptr_t) reply; + + VMW_PORT_HB_IN( + (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG, + reply_len, si, di, + VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16), + VMW_HYPERVISOR_MAGIC, bp, + eax, ebx, ecx, edx, si, di); + + return ebx; + } + + /* HB port not available. Retrieve the message 4 bytes at a time. */ + ecx = MESSAGE_STATUS_SUCCESS << 16; + while (reply_len) { + unsigned int bytes = min_t(unsigned long, reply_len, 4); + + si = channel->cookie_high; + di = channel->cookie_low; + + VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_RECVPAYLOAD << 16), + MESSAGE_STATUS_SUCCESS, si, di, + VMW_HYPERVISOR_PORT | (channel->channel_id << 16), + VMW_HYPERVISOR_MAGIC, + eax, ebx, ecx, edx, si, di); + + if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) + break; + + memcpy(reply, &ebx, bytes); + reply_len -= bytes; + reply += bytes; + } + + return ecx; +}

/** @@ -148,11 +256,10 @@ static int vmw_close_channel(struct rpc_ */ static int vmw_send_msg(struct rpc_channel *channel, const char *msg) { - unsigned long eax, ebx, ecx, edx, si, di, bp; + unsigned long eax, ebx, ecx, edx, si, di; size_t msg_len = strlen(msg); int retries = 0;

- while (retries < RETRIES) { retries++;

@@ -166,23 +273,14 @@ static int vmw_send_msg(struct rpc_chann VMW_HYPERVISOR_MAGIC, eax, ebx, ecx, edx, si, di);

- if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0 || - (HIGH_WORD(ecx) & MESSAGE_STATUS_HB) == 0) { - /* Expected success + high-bandwidth. Give up. */ + if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) { + /* Expected success. Give up. */ return -EINVAL; }

/* Send msg */ - si = (uintptr_t) msg; - di = channel->cookie_low; - bp = channel->cookie_high; - - VMW_PORT_HB_OUT( - (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG, - msg_len, si, di, - VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16), - VMW_HYPERVISOR_MAGIC, bp, - eax, ebx, ecx, edx, si, di); + ebx = vmw_port_hb_out(channel, msg, + !!(HIGH_WORD(ecx) & MESSAGE_STATUS_HB));

if ((HIGH_WORD(ebx) & MESSAGE_STATUS_SUCCESS) != 0) { return 0; @@ -211,7 +309,7 @@ STACK_FRAME_NON_STANDARD(vmw_send_msg); static int vmw_recv_msg(struct rpc_channel *channel, void **msg, size_t *msg_len) { - unsigned long eax, ebx, ecx, edx, si, di, bp; + unsigned long eax, ebx, ecx, edx, si, di; char *reply; size_t reply_len; int retries = 0; @@ -233,8 +331,7 @@ static int vmw_recv_msg(struct rpc_chann VMW_HYPERVISOR_MAGIC, eax, ebx, ecx, edx, si, di);

- if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0 || - (HIGH_WORD(ecx) & MESSAGE_STATUS_HB) == 0) { + if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) { DRM_ERROR("Failed to get reply size for host message.\n"); return -EINVAL; } @@ -252,17 +349,8 @@ static int vmw_recv_msg(struct rpc_chann

/* Receive buffer */ - si = channel->cookie_high; - di = (uintptr_t) reply; - bp = channel->cookie_low; - - VMW_PORT_HB_IN( - (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG, - reply_len, si, di, - VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16), - VMW_HYPERVISOR_MAGIC, bp, - eax, ebx, ecx, edx, si, di); - + ebx = vmw_port_hb_in(channel, reply, reply_len, + !!(HIGH_WORD(ecx) & MESSAGE_STATUS_HB)); if ((HIGH_WORD(ebx) & MESSAGE_STATUS_SUCCESS) == 0) { kfree(reply);

From: Marcel Holtmann marcel@holtmann.org

commit d5bb334a8e171b262e48f378bd2096c0ea458265 upstream.

The minimum encryption key size for LE connections is 56 bits and to align LE with BR/EDR, enforce 56 bits of minimum encryption key size for BR/EDR connections as well.

Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Johan Hedberg johan.hedberg@intel.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- include/net/bluetooth/hci_core.h | 3 +++ net/bluetooth/hci_conn.c | 8 ++++++++ 2 files changed, 11 insertions(+)

--- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -182,6 +182,9 @@ struct adv_info {

#define HCI_MAX_SHORT_NAME_LENGTH 10

+/* Min encryption key size to match with SMP */ +#define HCI_MIN_ENC_KEY_SIZE 7 + /* Default LE RPA expiry time, 15 minutes */ #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)

--- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -1276,6 +1276,14 @@ int hci_conn_check_link_mode(struct hci_ !test_bit(HCI_CONN_ENCRYPT, &conn->flags)) return 0;

+ /* The minimum encryption key size needs to be enforced by the + * host stack before establishing any L2CAP connections. The + * specification in theory allows a minimum of 1, but to align + * BR/EDR and LE transports, a minimum of 7 is chosen. + */ + if (conn->enc_key_size < HCI_MIN_ENC_KEY_SIZE) + return 0; + return 1; }

From: Steve French stfrench@microsoft.com

commit 8d526d62db907e786fd88948c75d1833d82bd80e upstream.

Some servers such as Windows 10 will return STATUS_INSUFFICIENT_RESOURCES as the number of simultaneous SMB3 requests grows (even though the client has sufficient credits). Return EAGAIN on STATUS_INSUFFICIENT_RESOURCES so that we can retry writes which fail with this status code.

This (for example) fixes large file copies to Windows 10 on fast networks.

Signed-off-by: Steve French stfrench@microsoft.com CC: Stable stable@vger.kernel.org Reviewed-by: Ronnie Sahlberg lsahlber@redhat.com Reviewed-by: Pavel Shilovsky pshilov@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- fs/cifs/smb2maperror.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/cifs/smb2maperror.c +++ b/fs/cifs/smb2maperror.c @@ -457,7 +457,7 @@ static const struct status_to_posix_erro {STATUS_FILE_INVALID, -EIO, "STATUS_FILE_INVALID"}, {STATUS_ALLOTTED_SPACE_EXCEEDED, -EIO, "STATUS_ALLOTTED_SPACE_EXCEEDED"}, - {STATUS_INSUFFICIENT_RESOURCES, -EREMOTEIO, + {STATUS_INSUFFICIENT_RESOURCES, -EAGAIN, "STATUS_INSUFFICIENT_RESOURCES"}, {STATUS_DFS_EXIT_PATH_FOUND, -EIO, "STATUS_DFS_EXIT_PATH_FOUND"}, {STATUS_DEVICE_DATA_ERROR, -EIO, "STATUS_DEVICE_DATA_ERROR"},

From: Johannes Berg johannes.berg@intel.com

commit 588f7d39b3592a36fb7702ae3b8bdd9be4621e2f upstream.

When receiving a robust management frame, drop it if we don't have rx->sta since then we don't have a security association and thus couldn't possibly validate the frame.

Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- net/mac80211/rx.c | 2 ++ 1 file changed, 2 insertions(+)

--- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3752,6 +3752,8 @@ static bool ieee80211_accept_frame(struc case NL80211_IFTYPE_STATION: if (!bssid && !sdata->u.mgd.use_4addr) return false; + if (ieee80211_is_robust_mgmt_frame(skb) && !rx->sta) + return false; if (multicast) return true; return ether_addr_equal(sdata->vif.addr, hdr->addr1);

From: Yu Wang yyuwang@codeaurora.org

commit 79c92ca42b5a3e0ea172ea2ce8df8e125af237da upstream.

When receiving a deauthentication/disassociation frame from a TDLS peer, a station should not disconnect the current AP, but only disable the current TDLS link if it's enabled.

Without this change, a TDLS issue can be reproduced by following the steps as below:

1. STA-1 and STA-2 are connected to AP, bidirection traffic is running between STA-1 and STA-2. 2. Set up TDLS link between STA-1 and STA-2, stay for a while, then teardown TDLS link. 3. Repeat step #2 and monitor the connection between STA and AP.

During the test, one STA may send a deauthentication/disassociation frame to another, after TDLS teardown, with reason code 6/7, which means: Class 2/3 frame received from nonassociated STA.

On receive this frame, the receiver STA will disconnect the current AP and then reconnect. It's not a expected behavior, purpose of this frame should be disabling the TDLS link, not the link with AP.

Cc: stable@vger.kernel.org Signed-off-by: Yu Wang yyuwang@codeaurora.org Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- net/mac80211/ieee80211_i.h | 3 +++ net/mac80211/mlme.c | 12 +++++++++++- net/mac80211/tdls.c | 23 +++++++++++++++++++++++ 3 files changed, 37 insertions(+), 1 deletion(-)

--- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -2183,6 +2183,9 @@ void ieee80211_tdls_cancel_channel_switc const u8 *addr); void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata); void ieee80211_tdls_chsw_work(struct work_struct *wk); +void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, + const u8 *peer, u16 reason); +const char *ieee80211_get_reason_code_string(u16 reason_code);

extern const struct ethtool_ops ieee80211_ethtool_ops;

--- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -2868,7 +2868,7 @@ static void ieee80211_rx_mgmt_auth(struc #define case_WLAN(type) \ case WLAN_REASON_##type: return #type

-static const char *ieee80211_get_reason_code_string(u16 reason_code) +const char *ieee80211_get_reason_code_string(u16 reason_code) { switch (reason_code) { case_WLAN(UNSPECIFIED); @@ -2933,6 +2933,11 @@ static void ieee80211_rx_mgmt_deauth(str if (len < 24 + 2) return;

+ if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { + ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); + return; + } + if (ifmgd->associated && ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid)) { const u8 *bssid = ifmgd->associated->bssid; @@ -2982,6 +2987,11 @@ static void ieee80211_rx_mgmt_disassoc(s

reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);

+ if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { + ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); + return; + } + sdata_info(sdata, "disassociated from %pM (Reason: %u=%s)\n", mgmt->sa, reason_code, ieee80211_get_reason_code_string(reason_code)); --- a/net/mac80211/tdls.c +++ b/net/mac80211/tdls.c @@ -1992,3 +1992,26 @@ void ieee80211_tdls_chsw_work(struct wor } rtnl_unlock(); } + +void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, + const u8 *peer, u16 reason) +{ + struct ieee80211_sta *sta; + + rcu_read_lock(); + sta = ieee80211_find_sta(&sdata->vif, peer); + if (!sta || !sta->tdls) { + rcu_read_unlock(); + return; + } + rcu_read_unlock(); + + tdls_dbg(sdata, "disconnected from TDLS peer %pM (Reason: %u=%s)\n", + peer, reason, + ieee80211_get_reason_code_string(reason)); + + ieee80211_tdls_oper_request(&sdata->vif, peer, + NL80211_TDLS_TEARDOWN, + WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE, + GFP_ATOMIC); +}

From: Jouni Malinen j@w1.fi

commit a71fd9dac23613d96ba3c05619a8ef4fd6cdf9b9 upstream.

ieee80211_aes_gmac() uses the mic argument directly in sg_set_buf() and that does not allow use of stack memory (e.g., BUG_ON() is hit in sg_set_buf() with CONFIG_DEBUG_SG). BIP GMAC TX side is fine for this since it can use the skb data buffer, but the RX side was using a stack variable for deriving the local MIC value to compare against the received one.

Fix this by allocating heap memory for the mic buffer.

This was found with hwsim test case ap_cipher_bip_gmac_128 hitting that BUG_ON() and kernel panic.

Cc: stable@vger.kernel.org Signed-off-by: Jouni Malinen j@w1.fi Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- net/mac80211/wpa.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -1175,7 +1175,7 @@ ieee80211_crypto_aes_gmac_decrypt(struct struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_key *key = rx->key; struct ieee80211_mmie_16 *mmie; - u8 aad[GMAC_AAD_LEN], mic[GMAC_MIC_LEN], ipn[6], nonce[GMAC_NONCE_LEN]; + u8 aad[GMAC_AAD_LEN], *mic, ipn[6], nonce[GMAC_NONCE_LEN]; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;

if (!ieee80211_is_mgmt(hdr->frame_control)) @@ -1206,13 +1206,18 @@ ieee80211_crypto_aes_gmac_decrypt(struct memcpy(nonce, hdr->addr2, ETH_ALEN); memcpy(nonce + ETH_ALEN, ipn, 6);

+ mic = kmalloc(GMAC_MIC_LEN, GFP_ATOMIC); + if (!mic) + return RX_DROP_UNUSABLE; if (ieee80211_aes_gmac(key->u.aes_gmac.tfm, aad, nonce, skb->data + 24, skb->len - 24, mic) < 0 || crypto_memneq(mic, mmie->mic, sizeof(mmie->mic))) { key->u.aes_gmac.icverrors++; + kfree(mic); return RX_DROP_UNUSABLE; } + kfree(mic); }

memcpy(key->u.aes_gmac.rx_pn, ipn, 6);