April 2019 - Linux-stable-mirror

Re: [PATCH] fs/open: Fix most outstanding security bugs

by Dmitry Vyukov

On Mon, Apr 1, 2019 at 4:14 PM Nikolay Borisov <nborisov(a)suse.com> wrote: > On 1.04.19 г. 12:01 ч., Johannes Thumshirn wrote: > > Over the last 20 years, the Linux kernel has accumulated hundreds if not > > thousands of security vulnerabilities. > > > > One common pattern in most of these security related reports is processes > > called "syzkaller", "trinity" or "syz-executor" opening files and then > > abuse kernel interfaces causing kernel crashes or even worse threats using > > memory overwrites or by exploiting race conditions. > > > > Hunting down these bugs has become time consuming and very expensive, so > > I've decided to put an end to it. > > > > If one of the above mentioned processes tries opening a file, return -EPERM > > indicating this process does not have the permission to open files on Linux > > anymore. > > > > Signed-off-by: Johannes Thumshirn <jthumshirn(a)suse.de> > > Ack-by: Nikolay Borisov <nborisov(a)suse.com> Reviewed-by: Dmitry Vyukov <dvyukov(a)google.com> Cc: stable(a)vger.kernel.org # v1.0+ Do we want to extend this to other subsystems? Should it be a default secomp filter? > > --- > > fs/open.c | 14 ++++++++++++++ > > 1 file changed, 14 insertions(+) > > > > diff --git a/fs/open.c b/fs/open.c > > index f1c2f855fd43..3a3b460beccd 100644 > > --- a/fs/open.c > > +++ b/fs/open.c > > @@ -1056,6 +1056,20 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode) > > struct open_flags op; > > int fd = build_open_flags(flags, mode, &op); > > struct filename *tmp; > > + char comm[TASK_COMM_LEN]; > > + int i; > > + static const char * const list[] = { > > + "syzkaller", > > + "syz-executor," > > + "trinity", > > + NULL > > + }; > > + > > + get_task_comm(comm, current); > > + > > + for (i = 0; i < ARRAY_SIZE(list); i++) > > + if (!strncmp(comm, list[i], strlen(list[i]))) > > + return -EPERM; > > > > if (fd) > > return fd; > >

5 years, 1 month

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[PATCH 4/4] block: Make blk_cleanup_queue() faster

by Bart Van Assche

Since blk_cleanup_queue() waits until q->q_usage_counter drops to zero before setting the "dead" flag, it is guaranteed that all requests that were in progress when blk_cleanup_queue() was called have finished before the "dead" flag is set. This means it is not possible that any .queue_rq() call is ongoing while the "dead" flag is set. Hence remove the code that waits for ongoing .queue_rq() calls to finish after the "dead" flag has been set. See also commit c2856ae2f315 ("blk-mq: quiesce queue before freeing queue") # v4.16. Cc: Christoph Hellwig <hch(a)infradead.org> Cc: Hannes Reinecke <hare(a)suse.com> Cc: James Smart <james.smart(a)broadcom.com> Cc: Ming Lei <ming.lei(a)redhat.com> Cc: Jianchao Wang <jianchao.w.wang(a)oracle.com> Cc: Dongli Zhang <dongli.zhang(a)oracle.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> --- block/blk-core.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index bfdbdbb8ec65..2921af6f8d33 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -348,18 +348,6 @@ void blk_cleanup_queue(struct request_queue *q) blk_queue_flag_set(QUEUE_FLAG_DEAD, q); - /* - * make sure all in-progress dispatch are completed because - * blk_freeze_queue() can only complete all requests, and - * dispatch may still be in-progress since we dispatch requests - * from more than one contexts. - * - * We rely on driver to deal with the race in case that queue - * initialization isn't done. - */ - if (queue_is_mq(q) && blk_queue_init_done(q)) - blk_mq_quiesce_queue(q); - /* for synchronous bio-based driver finish in-flight integrity i/o */ blk_flush_integrity(); -- 2.21.0.196.g041f5ea1cf98

5 years, 1 month

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[PATCH 3/4] block: Fix a comment in blk_cleanup_queue()

by Bart Van Assche

Change a reference to the legacy block layer into a reference to blk-mq. Cc: Christoph Hellwig <hch(a)infradead.org> Cc: Hannes Reinecke <hare(a)suse.com> Cc: James Smart <james.smart(a)broadcom.com> Cc: Ming Lei <ming.lei(a)redhat.com> Cc: Jianchao Wang <jianchao.w.wang(a)oracle.com> Cc: Dongli Zhang <dongli.zhang(a)oracle.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> --- block/blk-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index fdcf6de2243f..bfdbdbb8ec65 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -339,7 +339,8 @@ void blk_cleanup_queue(struct request_queue *q) /* * Drain all requests queued before DYING marking. Set DEAD flag to - * prevent that q->request_fn() gets invoked after draining finished. + * prevent that blk_mq_run_hw_queues() accesses the hardware queues + * after draining finished. */ blk_freeze_queue(q); -- 2.21.0.196.g041f5ea1cf98

5 years, 1 month

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[PATCH 1/4] block: Move the percpu_ref_exit(&q->q_usage_counter) call into __blk_release_queue()

by Bart Van Assche

This patch makes it safe to access the queue usage counter from inside blk_mq_run_hw_queues(). Other than deferring q_usage_counter freeing, this patch does not change any functionality. Cc: Christoph Hellwig <hch(a)infradead.org> Cc: Hannes Reinecke <hare(a)suse.com> Cc: James Smart <james.smart(a)broadcom.com> Cc: Ming Lei <ming.lei(a)redhat.com> Cc: Jianchao Wang <jianchao.w.wang(a)oracle.com> Cc: Dongli Zhang <dongli.zhang(a)oracle.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> --- block/blk-core.c | 2 -- block/blk-sysfs.c | 1 + 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 4673ebe42255..fdcf6de2243f 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -377,8 +377,6 @@ void blk_cleanup_queue(struct request_queue *q) if (queue_is_mq(q)) blk_mq_free_queue(q); - percpu_ref_exit(&q->q_usage_counter); - /* @q is and will stay empty, shutdown and put */ blk_put_queue(q); } diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 422327089e0f..b8b3d69cd0a5 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -870,6 +870,7 @@ static void __blk_release_queue(struct work_struct *work) bioset_exit(&q->bio_split); + percpu_ref_exit(&q->q_usage_counter); ida_simple_remove(&blk_queue_ida, q->id); call_rcu(&q->rcu_head, blk_free_queue_rcu); } -- 2.21.0.196.g041f5ea1cf98

5 years, 1 month

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stable-rc/linux-3.18.y boot: 53 boots: 1 failed, 46 passed with 6 offline (v3.18.137-51-g3048acfd5c33)

by kernelci.org bot

stable-rc/linux-3.18.y boot: 53 boots: 1 failed, 46 passed with 6 offline (v3.18.137-51-g3048acfd5c33) Full Boot Summary: https://kernelci.org/boot/all/job/stable-rc/branch/linux-3.18.y/kernel/v3.1… Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-3.18.y/kernel/v3.18.137-5… Tree: stable-rc Branch: linux-3.18.y Git Describe: v3.18.137-51-g3048acfd5c33 Git Commit: 3048acfd5c3327d6f104753593e845e1746d7681 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Tested: 23 unique boards, 12 SoC families, 13 builds out of 189 Boot Failure Detected: x86_64: x86_64_defconfig: gcc-7: minnowboard-turbot-E3826: 1 failed lab Offline Platforms: arm: bcm2835_defconfig: gcc-7 bcm2835-rpi-b: 1 offline lab tegra_defconfig: gcc-7 tegra124-jetson-tk1: 1 offline lab tegra20-iris-512: 1 offline lab multi_v7_defconfig: gcc-7 tegra124-jetson-tk1: 1 offline lab tegra20-iris-512: 1 offline lab sama5_defconfig: gcc-7 at91-sama5d4ek: 1 offline lab --- For more info write to <info(a)kernelci.org>

5 years, 1 month

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[PATCH] i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA

by Connor O'Brien

From: Jeremy Compostella <jeremy.compostella(a)intel.com> commit 89c6efa61f5709327ecfa24bff18e57a4e80c7fa upstream. On a I2C_SMBUS_I2C_BLOCK_DATA read request, if data->block[0] is greater than I2C_SMBUS_BLOCK_MAX + 1, the underlying I2C driver writes data out of the msgbuf1 array boundary. It is possible from a user application to run into that issue by calling the I2C_SMBUS ioctl with data.block[0] greater than I2C_SMBUS_BLOCK_MAX + 1. This patch makes the code compliant with Documentation/i2c/dev-interface by raising an error when the requested size is larger than 32 bytes. Call Trace: [<ffffffff8139f695>] dump_stack+0x67/0x92 [<ffffffff811802a4>] panic+0xc5/0x1eb [<ffffffff810ecb5f>] ? vprintk_default+0x1f/0x30 [<ffffffff817456d3>] ? i2cdev_ioctl_smbus+0x303/0x320 [<ffffffff8109a68b>] __stack_chk_fail+0x1b/0x20 [<ffffffff817456d3>] i2cdev_ioctl_smbus+0x303/0x320 [<ffffffff81745aed>] i2cdev_ioctl+0x4d/0x1e0 [<ffffffff811f761a>] do_vfs_ioctl+0x2ba/0x490 [<ffffffff81336e43>] ? security_file_ioctl+0x43/0x60 [<ffffffff811f7869>] SyS_ioctl+0x79/0x90 [<ffffffff81a22e97>] entry_SYSCALL_64_fastpath+0x12/0x6a Signed-off-by: Jeremy Compostella <jeremy.compostella(a)intel.com> Signed-off-by: Wolfram Sang <wsa(a)the-dreams.de> Cc: stable(a)kernel.org [connoro(a)google.com: 4.4 backport: adjust filename] Signed-off-by: Connor O'Brien <connoro(a)google.com> --- drivers/i2c/i2c-core.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index e4587411b447..153376009b46 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -2936,16 +2936,16 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, the underlying bus driver */ break; case I2C_SMBUS_I2C_BLOCK_DATA: + if (data->block[0] > I2C_SMBUS_BLOCK_MAX) { + dev_err(&adapter->dev, "Invalid block %s size %d\n", + read_write == I2C_SMBUS_READ ? "read" : "write", + data->block[0]); + return -EINVAL; + } if (read_write == I2C_SMBUS_READ) { msg[1].len = data->block[0]; } else { msg[0].len = data->block[0] + 1; - if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 1) { - dev_err(&adapter->dev, - "Invalid block write size %d\n", - data->block[0]); - return -EINVAL; - } for (i = 1; i <= data->block[0]; i++) msgbuf0[i] = data->block[i]; } -- 2.21.0.392.gf8f6787159e-goog

5 years, 1 month

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[PATCH] i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA

by Connor O'Brien

From: Jeremy Compostella <jeremy.compostella(a)intel.com> commit 89c6efa61f5709327ecfa24bff18e57a4e80c7fa upstream. On a I2C_SMBUS_I2C_BLOCK_DATA read request, if data->block[0] is greater than I2C_SMBUS_BLOCK_MAX + 1, the underlying I2C driver writes data out of the msgbuf1 array boundary. It is possible from a user application to run into that issue by calling the I2C_SMBUS ioctl with data.block[0] greater than I2C_SMBUS_BLOCK_MAX + 1. This patch makes the code compliant with Documentation/i2c/dev-interface by raising an error when the requested size is larger than 32 bytes. Call Trace: [<ffffffff8139f695>] dump_stack+0x67/0x92 [<ffffffff811802a4>] panic+0xc5/0x1eb [<ffffffff810ecb5f>] ? vprintk_default+0x1f/0x30 [<ffffffff817456d3>] ? i2cdev_ioctl_smbus+0x303/0x320 [<ffffffff8109a68b>] __stack_chk_fail+0x1b/0x20 [<ffffffff817456d3>] i2cdev_ioctl_smbus+0x303/0x320 [<ffffffff81745aed>] i2cdev_ioctl+0x4d/0x1e0 [<ffffffff811f761a>] do_vfs_ioctl+0x2ba/0x490 [<ffffffff81336e43>] ? security_file_ioctl+0x43/0x60 [<ffffffff811f7869>] SyS_ioctl+0x79/0x90 [<ffffffff81a22e97>] entry_SYSCALL_64_fastpath+0x12/0x6a Signed-off-by: Jeremy Compostella <jeremy.compostella(a)intel.com> Signed-off-by: Wolfram Sang <wsa(a)the-dreams.de> Cc: stable(a)kernel.org [connoro(a)google.com: 3.18 backport: adjust filename] Signed-off-by: Connor O'Brien <connoro(a)google.com> --- drivers/i2c/i2c-core.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 7bd1b5cfb8d1..bb4b76f44fc9 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -2762,16 +2762,16 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, the underlying bus driver */ break; case I2C_SMBUS_I2C_BLOCK_DATA: + if (data->block[0] > I2C_SMBUS_BLOCK_MAX) { + dev_err(&adapter->dev, "Invalid block %s size %d\n", + read_write == I2C_SMBUS_READ ? "read" : "write", + data->block[0]); + return -EINVAL; + } if (read_write == I2C_SMBUS_READ) { msg[1].len = data->block[0]; } else { msg[0].len = data->block[0] + 1; - if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 1) { - dev_err(&adapter->dev, - "Invalid block write size %d\n", - data->block[0]); - return -EINVAL; - } for (i = 1; i <= data->block[0]; i++) msgbuf0[i] = data->block[i]; } -- 2.21.0.392.gf8f6787159e-goog

5 years, 1 month

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✅ PASS: Test report for kernel 5.0.6-7962177.cki+ (stable)

by CKI Project

Hello, We ran automated tests on a recent commit from this kernel tree: Kernel repo: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Commit: 7962177be7f6 - Linux 5.0.6-rc1 The results of these automated tests are provided below. Overall result: PASSED Compile: OK Tests: OK Please reply to this email if you have any questions about the tests that we ran or if you have any suggestions on how to make future tests more effective. ,-. ,-. ( C ) ( K ) Continuous `-',-.`-' Kernel ( I ) Integration `-' ______________________________________________________________________________ Compile testing --------------- We compiled the kernel for 3 architectures: aarch64: make options: make INSTALL_MOD_STRIP=1 -j64 targz-pkg -j64 configuration: https://artifacts.cki-project.org/builds/aarch64/7962177be7f613f605769e462c… kernel build: https://artifacts.cki-project.org/builds/aarch64/7962177be7f613f605769e462c… ppc64le: make options: make INSTALL_MOD_STRIP=1 -j64 targz-pkg -j64 configuration: https://artifacts.cki-project.org/builds/ppc64le/7962177be7f613f605769e462c… kernel build: https://artifacts.cki-project.org/builds/ppc64le/7962177be7f613f605769e462c… x86_64: make options: make INSTALL_MOD_STRIP=1 -j64 targz-pkg -j64 configuration: https://artifacts.cki-project.org/builds/x86_64/7962177be7f613f605769e462c7… kernel build: https://artifacts.cki-project.org/builds/x86_64/7962177be7f613f605769e462c7… Hardware testing ---------------- We booted each kernel and ran the following tests: aarch64: ✅ Boot test [0] ✅ LTP lite - release 20190115 [1] ✅ Loopdev Sanity [2] ✅ xfstests: ext4 [3] ✅ xfstests: xfs [3] ✅ Memory function: memfd_create [4] ✅ AMTU (Abstract Machine Test Utility) [5] ✅ Ethernet drivers sanity [6] 🚧 ✅ Networking route: pmtu [7] 🚧 ❎ audit: audit testsuite test [8] ✅ httpd: mod_ssl smoke sanity [9] ✅ httpd: php sanity [10] 🚧 ✅ iotop: sanity [11] 🚧 ✅ /CoreOS/net-snmp/Regression/bz251332-tcp-transport ✅ redhat-rpm-config: detect-kabi-provides sanity [12] ✅ redhat-rpm-config: kabi-whitelist-not-found sanity [13] 🚧 ✅ tuned: tune-processes-through-perf [14] ✅ Usex - version 1.9-29 [15] 🚧 ❎ Storage blktests [16] ✅ lvm thinp sanity [17] ppc64le: ✅ Boot test [0] ✅ LTP lite - release 20190115 [1] ✅ Loopdev Sanity [2] ✅ xfstests: ext4 [3] ✅ xfstests: xfs [3] ✅ Memory function: memfd_create [4] ✅ AMTU (Abstract Machine Test Utility) [5] ✅ Ethernet drivers sanity [6] 🚧 ✅ Networking route: pmtu [7] 🚧 ❎ audit: audit testsuite test [8] ✅ httpd: mod_ssl smoke sanity [9] ✅ httpd: php sanity [10] 🚧 ✅ iotop: sanity [11] 🚧 ✅ /CoreOS/net-snmp/Regression/bz251332-tcp-transport ✅ redhat-rpm-config: detect-kabi-provides sanity [12] ✅ redhat-rpm-config: kabi-whitelist-not-found sanity [13] 🚧 ✅ selinux-policy: serge-testsuite [18] 🚧 ✅ tuned: tune-processes-through-perf [14] ✅ Usex - version 1.9-29 [15] 🚧 ❎ Storage blktests [16] ✅ lvm thinp sanity [17] x86_64: ✅ Boot test [0] ✅ LTP lite - release 20190115 [1] ✅ Loopdev Sanity [2] ✅ xfstests: ext4 [3] ✅ xfstests: xfs [3] ✅ Memory function: memfd_create [4] ✅ AMTU (Abstract Machine Test Utility) [5] ✅ Ethernet drivers sanity [6] 🚧 ❎ Networking route: pmtu [7] 🚧 ❎ audit: audit testsuite test [8] ✅ httpd: mod_ssl smoke sanity [9] ✅ httpd: php sanity [10] 🚧 ✅ iotop: sanity [11] 🚧 ✅ /CoreOS/net-snmp/Regression/bz251332-tcp-transport ✅ redhat-rpm-config: detect-kabi-provides sanity [12] ✅ redhat-rpm-config: kabi-whitelist-not-found sanity [13] 🚧 ✅ selinux-policy: serge-testsuite [18] 🚧 ✅ tuned: tune-processes-through-perf [14] ✅ Usex - version 1.9-29 [15] 🚧 ❎ Storage blktests [16] ✅ lvm thinp sanity [17] Test source: [0]: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… [1]: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… [2]: https://github.com/CKI-project/tests-beaker/archive/master.zip#filesystems/… [3]: https://github.com/CKI-project/tests-beaker/archive/master.zip#/filesystems… [4]: https://github.com/CKI-project/tests-beaker/archive/master.zip#/memory/func… [5]: https://github.com/CKI-project/tests-beaker/archive/master.zip#misc/amtu [6]: https://github.com/CKI-project/tests-beaker/archive/master.zip#/networking/… [7]: https://github.com/CKI-project/tests-beaker/archive/master.zip#/networking/… [8]: https://github.com/CKI-project/tests-beaker/archive/master.zip#packages/aud… [9]: https://github.com/CKI-project/tests-beaker/archive/master.zip#packages/htt… [10]: https://github.com/CKI-project/tests-beaker/archive/master.zip#packages/htt… [11]: https://github.com/CKI-project/tests-beaker/archive/master.zip#packages/iot… [12]: https://github.com/CKI-project/tests-beaker/archive/master.zip#packages/red… [13]: https://github.com/CKI-project/tests-beaker/archive/master.zip#packages/red… [14]: https://github.com/CKI-project/tests-beaker/archive/master.zip#packages/tun… [15]: https://github.com/CKI-project/tests-beaker/archive/master.zip#standards/us… [16]: https://github.com/CKI-project/tests-beaker/archive/master.zip#storage/blk [17]: https://github.com/CKI-project/tests-beaker/archive/master.zip#storage/lvm/… [18]: https://github.com/CKI-project/tests-beaker/archive/master.zip#/packages/se… Waived tests (marked with 🚧) ----------------------------- This test run included waived tests. Such tests are executed but their results are not taken into account. Tests are waived when their results are not reliable enough, e.g. when they're just introduced or are being fixed.

5 years, 1 month

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stable-rc/linux-4.14.y build: 201 builds: 4 failed, 197 passed, 10 errors, 138 warnings (v4.14.109-108-gd9f7d17a43aa)

by kernelci.org bot

stable-rc/linux-4.14.y build: 201 builds: 4 failed, 197 passed, 10 errors, 138 warnings (v4.14.109-108-gd9f7d17a43aa) Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-4.14.y/kernel/v4.14.109-1… Tree: stable-rc Branch: linux-4.14.y Git Describe: v4.14.109-108-gd9f7d17a43aa Git Commit: d9f7d17a43aadb81f676a3a3f012a1bb32fe9bbc Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 6 unique architectures Build Failures Detected: mips: mips-linux-gnu-gcc (Debian 7.3.0-28) 7.3.0 bigsur_defconfig: FAIL decstation_defconfig: FAIL jmr3927_defconfig: FAIL sb1250_swarm_defconfig: FAIL Errors and Warnings Detected: arc: arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2017.09) 7.1.1 20170710 axs103_defconfig: 3 warnings axs103_smp_defconfig: 3 warnings haps_hs_defconfig: 1 warning haps_hs_smp_defconfig: 1 warning hsdk_defconfig: 3 warnings nsim_hs_defconfig: 1 warning nsim_hs_smp_defconfig: 1 warning nsimosci_hs_defconfig: 3 warnings nsimosci_hs_smp_defconfig: 3 warnings vdk_hs38_defconfig: 4 warnings vdk_hs38_smp_defconfig: 4 warnings arm64: aarch64-linux-gnu-gcc (Debian 7.4.0-1) 7.4.0 defconfig: 1 warning arm: arm-linux-gnueabihf-gcc (Debian 7.4.0-1) 7.4.0 acs5k_defconfig: 1 warning acs5k_tiny_defconfig: 1 warning aspeed_g4_defconfig: 1 warning aspeed_g5_defconfig: 1 warning assabet_defconfig: 1 warning axm55xx_defconfig: 1 warning badge4_defconfig: 1 warning cerfcube_defconfig: 1 warning clps711x_defconfig: 1 warning cm_x300_defconfig: 1 warning cns3420vb_defconfig: 1 warning colibri_pxa270_defconfig: 1 warning colibri_pxa300_defconfig: 1 warning collie_defconfig: 1 warning corgi_defconfig: 1 warning davinci_all_defconfig: 1 warning dove_defconfig: 1 warning ebsa110_defconfig: 1 warning ep93xx_defconfig: 1 warning eseries_pxa_defconfig: 1 warning exynos_defconfig: 1 warning ezx_defconfig: 1 warning footbridge_defconfig: 1 warning gemini_defconfig: 1 warning h3600_defconfig: 1 warning hackkit_defconfig: 1 warning hisi_defconfig: 1 warning imote2_defconfig: 1 warning imx_v6_v7_defconfig: 1 warning integrator_defconfig: 1 warning iop13xx_defconfig: 1 warning iop32x_defconfig: 1 warning iop33x_defconfig: 1 warning ixp4xx_defconfig: 2 warnings jornada720_defconfig: 1 warning keystone_defconfig: 1 warning ks8695_defconfig: 1 warning lart_defconfig: 1 warning lpd270_defconfig: 1 warning lubbock_defconfig: 1 warning magician_defconfig: 1 warning mainstone_defconfig: 1 warning mini2440_defconfig: 1 warning mmp2_defconfig: 1 warning moxart_defconfig: 1 warning multi_v4t_defconfig: 1 warning multi_v5_defconfig: 1 warning multi_v7_defconfig: 1 warning mv78xx0_defconfig: 1 warning mvebu_v5_defconfig: 1 warning mvebu_v7_defconfig: 1 warning mxs_defconfig: 1 warning neponset_defconfig: 1 warning netwinder_defconfig: 1 warning netx_defconfig: 1 warning nhk8815_defconfig: 1 warning nuc910_defconfig: 1 warning nuc950_defconfig: 1 warning nuc960_defconfig: 1 warning omap2plus_defconfig: 1 warning orion5x_defconfig: 1 warning palmz72_defconfig: 1 warning pcm027_defconfig: 1 warning prima2_defconfig: 1 warning pxa168_defconfig: 1 warning pxa255-idp_defconfig: 1 warning pxa3xx_defconfig: 1 warning pxa910_defconfig: 1 warning pxa_defconfig: 1 warning qcom_defconfig: 1 warning raumfeld_defconfig: 1 warning realview_defconfig: 1 warning rpc_defconfig: 1 warning s3c2410_defconfig: 2 warnings s3c6400_defconfig: 1 warning s5pv210_defconfig: 1 warning sama5_defconfig: 1 warning shannon_defconfig: 1 warning simpad_defconfig: 1 warning socfpga_defconfig: 1 warning spear13xx_defconfig: 1 warning spear3xx_defconfig: 1 warning spear6xx_defconfig: 1 warning spitz_defconfig: 1 warning sunxi_defconfig: 1 warning tango4_defconfig: 1 warning tegra_defconfig: 1 warning trizeps4_defconfig: 1 warning u300_defconfig: 1 warning u8500_defconfig: 1 warning versatile_defconfig: 1 warning vexpress_defconfig: 1 warning vt8500_v6_v7_defconfig: 1 warning zeus_defconfig: 1 warning zx_defconfig: 1 warning i386: gcc (Debian 7.4.0-6) 7.4.0 i386_defconfig: 1 warning mips: mips-linux-gnu-gcc (Debian 7.3.0-28) 7.3.0 bigsur_defconfig: 1 error, 4 warnings decstation_defconfig: 4 errors jmr3927_defconfig: 4 errors loongson3_defconfig: 1 warning malta_qemu_32r6_defconfig: 1 warning sb1250_swarm_defconfig: 1 error, 4 warnings x86_64: gcc (Debian 7.4.0-6) 7.4.0 tinyconfig: 1 warning x86_64_defconfig: 1 warning Errors summary: 4 cc1: error: '-march=r3900' requires '-mfp32' 4 cc1: error: '-march=r3000' requires '-mfp32' 2 (.text+0x1c0): undefined reference to `iommu_is_span_boundary' Warnings summary: 98 fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] 14 arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] 11 net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] 8 warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || NLM_XLP_BOARD || NLM_XLR_BOARD) 3 net/netfilter/ipvs/ip_vs_ctl.c:892:6: warning: unused variable 'ret' [-Wunused-variable] 2 arch/arc/kernel/unwind.c:188:14: warning: 'unw_hdr_alloc' defined but not used [-Wunused-function] 1 {standard input}:29: Warning: macro instruction expanded into multiple instructions 1 .config:1023:warning: override: UNWINDER_GUESS changes choice state ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- acs5k_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- acs5k_tiny_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- allnoconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arc, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (i386, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm64, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- am200epdkit_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ar7_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g4_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- aspeed_g5_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- assabet_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- at91_dt_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath25_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath79_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axm55xx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- axs103_defconfig (arc, gcc-7) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] -------------------------------------------------------------------------------- axs103_smp_defconfig (arc, gcc-7) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- badge4_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- bcm2835_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm47xx_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm63xx_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bigsur_defconfig (mips, gcc-7) — FAIL, 1 error, 4 warnings, 0 section mismatches Errors: (.text+0x1c0): undefined reference to `iommu_is_span_boundary' Warnings: warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || NLM_XLP_BOARD || NLM_XLR_BOARD) warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || NLM_XLP_BOARD || NLM_XLR_BOARD) warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || NLM_XLP_BOARD || NLM_XLR_BOARD) warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || NLM_XLP_BOARD || NLM_XLR_BOARD) -------------------------------------------------------------------------------- bmips_be_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_stb_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- capcella_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cavium_octeon_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cerfcube_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- ci20_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- clps711x_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- cm_x2xx_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x300_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- cns3420vb_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- cobalt_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa270_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- colibri_pxa300_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- collie_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- corgi_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- davinci_all_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- db1xxx_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_defconfig (mips, gcc-7) — FAIL, 4 errors, 0 warnings, 0 section mismatches Errors: cc1: error: '-march=r3000' requires '-mfp32' cc1: error: '-march=r3000' requires '-mfp32' cc1: error: '-march=r3000' requires '-mfp32' cc1: error: '-march=r3000' requires '-mfp32' -------------------------------------------------------------------------------- defconfig (arm64, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- dove_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- e55_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ebsa110_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- efm32_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- em_x270_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ep93xx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- eseries_pxa_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- exynos_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- ezx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- footbridge_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- fuloong2e_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gemini_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- gpr_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h3600_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- h5000_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hackkit_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- haps_hs_defconfig (arc, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- hisi_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- hsdk_defconfig (arc, gcc-7) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- imote2_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- imx_v4_v5_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- integrator_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- iop13xx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- iop32x_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- iop33x_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- ip22_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip27_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip28_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip32_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ixp4xx_defconfig (arm, gcc-7) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/ipvs/ip_vs_ctl.c:892:6: warning: unused variable 'ret' [-Wunused-variable] -------------------------------------------------------------------------------- jazz_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jmr3927_defconfig (mips, gcc-7) — FAIL, 4 errors, 0 warnings, 0 section mismatches Errors: cc1: error: '-march=r3900' requires '-mfp32' cc1: error: '-march=r3900' requires '-mfp32' cc1: error: '-march=r3900' requires '-mfp32' cc1: error: '-march=r3900' requires '-mfp32' -------------------------------------------------------------------------------- jornada720_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- keystone_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- ks8695_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- lart_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- lasat_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lemote2f_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1b_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1c_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson3_defconfig (mips, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: net/netfilter/ipvs/ip_vs_ctl.c:892:6: warning: unused variable 'ret' [-Wunused-variable] -------------------------------------------------------------------------------- lpc18xx_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc32xx_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpd270_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- lubbock_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- magician_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mainstone_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- malta_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_guest_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_qemu_32r6_defconfig (mips, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: {standard input}:29: Warning: macro instruction expanded into multiple instructions -------------------------------------------------------------------------------- maltaaprp_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_eva_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_xpa_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- markeins_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mini2440_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mips_paravirt_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mmp2_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- moxart_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mpc30x_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mps2_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- msp71xx_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mtx1_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v4t_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mv78xx0_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mvebu_v5_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mvebu_v7_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mxs_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- neponset_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- netwinder_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- netx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- nhk8815_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- nlm_xlp_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlr_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_defconfig (arc, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- nsim_hs_smp_defconfig (arc, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- nsimosci_hs_defconfig (arc, gcc-7) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- nsimosci_hs_smp_defconfig (arc, gcc-7) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- nuc910_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- nuc950_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- nuc960_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- omap1_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- omega2p_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- orion5x_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- palmz72_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pcm027_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pic32mzda_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pistachio_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pleb_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pnx8335_stb225_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- prima2_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa168_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa255-idp_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa3xx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa910_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- qcom_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- qi_lb60_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- raumfeld_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- rb532_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rbtx49xx_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- realview_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- rm200_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rpc_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- rt305x_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c2410_defconfig (arm, gcc-7) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/ipvs/ip_vs_ctl.c:892:6: warning: unused variable 'ret' [-Wunused-variable] -------------------------------------------------------------------------------- s3c6400_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- s5pv210_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- sama5_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- sb1250_swarm_defconfig (mips, gcc-7) — FAIL, 1 error, 4 warnings, 0 section mismatches Errors: (.text+0x1c0): undefined reference to `iommu_is_span_boundary' Warnings: warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || NLM_XLP_BOARD || NLM_XLR_BOARD) warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || NLM_XLP_BOARD || NLM_XLR_BOARD) warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || NLM_XLP_BOARD || NLM_XLR_BOARD) warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || NLM_XLP_BOARD || NLM_XLR_BOARD) -------------------------------------------------------------------------------- shannon_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- shmobile_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- simpad_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- socfpga_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- spear13xx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- spear3xx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- spear6xx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- spitz_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- stm32_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sunxi_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- tango4_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- tb0219_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0226_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0287_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tct_hammer_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tegra_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- tinyconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arc, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: .config:1023:warning: override: UNWINDER_GUESS changes choice state -------------------------------------------------------------------------------- tinyconfig (i386, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arm64, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- trizeps4_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- u300_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- u8500_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- vdk_hs38_defconfig (arc, gcc-7) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/arc/kernel/unwind.c:188:14: warning: 'unw_hdr_alloc' defined but not used [-Wunused-function] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] -------------------------------------------------------------------------------- vdk_hs38_smp_defconfig (arc, gcc-7) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/arc/kernel/unwind.c:188:14: warning: 'unw_hdr_alloc' defined but not used [-Wunused-function] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] -------------------------------------------------------------------------------- versatile_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- viper_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vocore2_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vt8500_v6_v7_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- workpad_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- xcep_defconfig (arm, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xilfpga_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xway_defconfig (mips, gcc-7) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zeus_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- zx_defconfig (arm, gcc-7) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] --- For more info write to <info(a)kernelci.org>

5 years, 1 month

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[merged] proc-sysctl-fix-null-pointer-dereference-in-put_links.patch removed from -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: fs/proc/proc_sysctl.c: fix NULL pointer dereference in put_links has been removed from the -mm tree. Its filename was proc-sysctl-fix-null-pointer-dereference-in-put_links.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: YueHaibing <yuehaibing(a)huawei.com> Subject: fs/proc/proc_sysctl.c: fix NULL pointer dereference in put_links Syzkaller reports: kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN PTI CPU: 1 PID: 5373 Comm: syz-executor.0 Not tainted 5.0.0-rc8+ #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 RIP: 0010:put_links+0x101/0x440 fs/proc/proc_sysctl.c:1599 Code: 00 0f 85 3a 03 00 00 48 8b 43 38 48 89 44 24 20 48 83 c0 38 48 89 c2 48 89 44 24 28 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 fe 02 00 00 48 8b 74 24 20 48 c7 c7 60 2a 9d 91 RSP: 0018:ffff8881d828f238 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8881e01b1140 RCX: ffffffff8ee98267 RDX: 0000000000000007 RSI: ffffc90001479000 RDI: ffff8881e01b1178 RBP: dffffc0000000000 R08: ffffed103ee27259 R09: ffffed103ee27259 R10: 0000000000000001 R11: ffffed103ee27258 R12: fffffffffffffff4 R13: 0000000000000006 R14: ffff8881f59838c0 R15: dffffc0000000000 FS: 00007f072254f700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff8b286668 CR3: 00000001f0542002 CR4: 00000000007606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: drop_sysctl_table+0x152/0x9f0 fs/proc/proc_sysctl.c:1629 get_subdir fs/proc/proc_sysctl.c:1022 [inline] __register_sysctl_table+0xd65/0x1090 fs/proc/proc_sysctl.c:1335 ? 0xffffffffc1a18000 br_netfilter_init+0xbc/0x1000 [br_netfilter] ? 0xffffffffc1a18000 ? 0xffffffffc1a18000 do_one_initcall+0xfa/0x5ca init/main.c:887 do_init_module+0x204/0x5f6 kernel/module.c:3460 load_module+0x66b2/0x8570 kernel/module.c:3808 __do_sys_finit_module+0x238/0x2a0 kernel/module.c:3902 do_syscall_64+0x147/0x600 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x462e99 Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f072254ec58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 000000000073bf00 RCX: 0000000000462e99 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00007f072254ec70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f072254f6bc R13: 00000000004bcefa R14: 00000000006f6fb0 R15: 0000000000000004 Modules linked in: br_netfilter(+) dvb_usb_dibusb_mc_common dib3000mc dibx000_common dvb_usb_dibusb_common dvb_usb_dw2102 dvb_usb classmate_laptop palmas_regulator cn videobuf2_v4l2 v4l2_common snd_soc_bd28623 mptbase snd_usb_usx2y snd_usbmidi_lib snd_rawmidi wmi libnvdimm lockd sunrpc grace rc_kworld_pc150u rc_core rtc_da9063 sha1_ssse3 i2c_cros_ec_tunnel adxl34x_spi adxl34x nfnetlink lib80211 i5500_temp dvb_as102 dvb_core videobuf2_common videodev media videobuf2_vmalloc videobuf2_memops udc_core lnbp22 leds_lp3952 hid_roccat_ryos s1d13xxxfb mtd vport_geneve openvswitch nf_conncount nf_nat_ipv6 nsh geneve udp_tunnel ip6_udp_tunnel snd_soc_mt6351 sis_agp phylink snd_soc_adau1761_spi snd_soc_adau1761 snd_soc_adau17x1 snd_soc_core snd_pcm_dmaengine ac97_bus snd_compress snd_soc_adau_utils snd_soc_sigmadsp_regmap snd_soc_sigmadsp raid_class hid_roccat_konepure hid_roccat_common hid_roccat c2port_duramar2150 core mdio_bcm_unimac iptable_security iptable_raw iptable_mangle iptable_nat nf_nat_ipv4 nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter bpfilter ip6_vti ip_vti ip_gre ipip sit tunnel4 ip_tunnel hsr veth netdevsim devlink vxcan batman_adv cfg80211 rfkill chnl_net caif nlmon dummy team bonding vcan bridge stp llc ip6_gre gre ip6_tunnel tunnel6 tun crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel joydev mousedev ide_pci_generic piix aesni_intel aes_x86_64 ide_core crypto_simd atkbd cryptd glue_helper serio_raw ata_generic pata_acpi i2c_piix4 floppy sch_fq_codel ip_tables x_tables ipv6 [last unloaded: lm73] Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 770020de38961fd0 ]--- A new dir entry can be created in get_subdir and its 'header->parent' is set to NULL. Only after insert_header success, it will be set to 'dir', otherwise 'header->parent' is set to NULL and drop_sysctl_table is called. However in err handling path of get_subdir, drop_sysctl_table also be called on 'new->header' regardless its value of parent pointer. Then put_links is called, which triggers NULL-ptr deref when access member of header->parent. In fact we have multiple error paths which call drop_sysctl_table() there, upon failure on insert_links() we also call drop_sysctl_table().And even in the successful case on __register_sysctl_table() we still always call drop_sysctl_table().This patch fix it. Link: http://lkml.kernel.org/r/20190314085527.13244-1-yuehaibing@huawei.com Fixes: 0e47c99d7fe25 ("sysctl: Replace root_list with links between sysctl_table_sets") Signed-off-by: YueHaibing <yuehaibing(a)huawei.com> Reported-by: Hulk Robot <hulkci(a)huawei.com> Acked-by: Luis Chamberlain <mcgrof(a)kernel.org> Cc: Kees Cook <keescook(a)chromium.org> Cc: Alexey Dobriyan <adobriyan(a)gmail.com> Cc: Alexei Starovoitov <ast(a)kernel.org> Cc: Daniel Borkmann <daniel(a)iogearbox.net> Cc: Al Viro <viro(a)zeniv.linux.org.uk> Cc: Eric W. Biederman <ebiederm(a)xmission.com> Cc: <stable(a)vger.kernel.org> [3.4+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/proc/proc_sysctl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/fs/proc/proc_sysctl.c~proc-sysctl-fix-null-pointer-dereference-in-put_links +++ a/fs/proc/proc_sysctl.c @@ -1626,7 +1626,8 @@ static void drop_sysctl_table(struct ctl if (--header->nreg) return; - put_links(header); + if (parent) + put_links(header); start_unregistering(header); if (!--header->count) kfree_rcu(header, rcu); _ Patches currently in -mm which might be from yuehaibing(a)huawei.com are

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Linux-stable-mirror April 2019