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[Linux-stable-mirror] Patch "tipc: fix link attribute propagation bug" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled tipc: fix link attribute propagation bug to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: tipc-fix-link-attribute-propagation-bug.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From d01332f1acacc0cb43a61f4244dd2b846d4cd585 Mon Sep 17 00:00:00 2001 From: Richard Alpe <richard.alpe(a)ericsson.com> Date: Mon, 1 Feb 2016 08:19:56 +0100 Subject: tipc: fix link attribute propagation bug From: Richard Alpe <richard.alpe(a)ericsson.com> commit d01332f1acacc0cb43a61f4244dd2b846d4cd585 upstream. Changing certain link attributes (link tolerance and link priority) from the TIPC management tool is supposed to automatically take effect at both endpoints of the affected link. Currently the media address is not instantiated for the link and is used uninstantiated when crafting protocol messages designated for the peer endpoint. This means that changing a link property currently results in the property being changed on the local machine but the protocol message designated for the peer gets lost. Resulting in property discrepancy between the endpoints. In this patch we resolve this by using the media address from the link entry and using the bearer transmit function to send it. Hence, we can now eliminate the redundant function tipc_link_prot_xmit() and the redundant field tipc_link::media_addr. Fixes: 2af5ae372a4b (tipc: clean up unused code and structures) Reviewed-by: Jon Maloy <jon.maloy(a)ericsson.com> Reported-by: Jason Hu <huzhijiang(a)gmail.com> Signed-off-by: Richard Alpe <richard.alpe(a)ericsson.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> [backported to 4.4 by Tommi Rantala] Signed-off-by: Tommi Rantala <tommi.t.rantala(a)nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- net/tipc/link.c | 28 ++++++---------------------- net/tipc/link.h | 1 - 2 files changed, 6 insertions(+), 23 deletions(-) --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1084,25 +1084,6 @@ drop: return rc; } -/* - * Send protocol message to the other endpoint. - */ -void tipc_link_proto_xmit(struct tipc_link *l, u32 msg_typ, int probe_msg, - u32 gap, u32 tolerance, u32 priority) -{ - struct sk_buff *skb = NULL; - struct sk_buff_head xmitq; - - __skb_queue_head_init(&xmitq); - tipc_link_build_proto_msg(l, msg_typ, probe_msg, gap, - tolerance, priority, &xmitq); - skb = __skb_dequeue(&xmitq); - if (!skb) - return; - tipc_bearer_xmit_skb(l->net, l->bearer_id, skb, l->media_addr); - l->rcv_unacked = 0; -} - static void tipc_link_build_proto_msg(struct tipc_link *l, int mtyp, bool probe, u16 rcvgap, int tolerance, int priority, struct sk_buff_head *xmitq) @@ -1636,9 +1617,12 @@ int tipc_nl_link_set(struct sk_buff *skb char *name; struct tipc_link *link; struct tipc_node *node; + struct sk_buff_head xmitq; struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1]; struct net *net = sock_net(skb->sk); + __skb_queue_head_init(&xmitq); + if (!info->attrs[TIPC_NLA_LINK]) return -EINVAL; @@ -1683,14 +1667,14 @@ int tipc_nl_link_set(struct sk_buff *skb tol = nla_get_u32(props[TIPC_NLA_PROP_TOL]); link->tolerance = tol; - tipc_link_proto_xmit(link, STATE_MSG, 0, 0, tol, 0); + tipc_link_build_proto_msg(link, STATE_MSG, 0, 0, tol, 0, &xmitq); } if (props[TIPC_NLA_PROP_PRIO]) { u32 prio; prio = nla_get_u32(props[TIPC_NLA_PROP_PRIO]); link->priority = prio; - tipc_link_proto_xmit(link, STATE_MSG, 0, 0, 0, prio); + tipc_link_build_proto_msg(link, STATE_MSG, 0, 0, 0, prio, &xmitq); } if (props[TIPC_NLA_PROP_WIN]) { u32 win; @@ -1702,7 +1686,7 @@ int tipc_nl_link_set(struct sk_buff *skb out: tipc_node_unlock(node); - + tipc_bearer_xmit(net, bearer_id, &xmitq, &node->links[bearer_id].maddr); return res; } --- a/net/tipc/link.h +++ b/net/tipc/link.h @@ -153,7 +153,6 @@ struct tipc_stats { struct tipc_link { u32 addr; char name[TIPC_MAX_LINK_NAME]; - struct tipc_media_addr *media_addr; struct net *net; /* Management and link supervision data */ Patches currently in stable-queue which might be from richard.alpe(a)ericsson.com are queue-4.4/tipc-fix-link-attribute-propagation-bug.patch

7 years, 2 months

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[Linux-stable-mirror] Patch "target/iscsi: Fix iSCSI task reassignment handling" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled target/iscsi: Fix iSCSI task reassignment handling to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: target-iscsi-fix-iscsi-task-reassignment-handling.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 59b6986dbfcdab96a971f9663221849de79a7556 Mon Sep 17 00:00:00 2001 From: Bart Van Assche <bart.vanassche(a)sandisk.com> Date: Thu, 5 Jan 2017 12:39:57 +0100 Subject: target/iscsi: Fix iSCSI task reassignment handling From: Bart Van Assche <bart.vanassche(a)sandisk.com> commit 59b6986dbfcdab96a971f9663221849de79a7556 upstream. Allocate a task management request structure for all task management requests, including task reassignment. This change avoids that the se_tmr->response assignment dereferences an uninitialized se_tmr pointer. Reported-by: Moshe David <mdavid(a)infinidat.com> Signed-off-by: Bart Van Assche <bart.vanassche(a)sandisk.com> Reviewed-by: Hannes Reinecke <hare(a)suse.com> Reviewed-by: Christoph Hellwig <hch(a)lst.de> Cc: Moshe David <mdavid(a)infinidat.com> Signed-off-by: Nicholas Bellinger <nab(a)linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/target/iscsi/iscsi_target.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -1759,7 +1759,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_ struct iscsi_tm *hdr; int out_of_order_cmdsn = 0, ret; bool sess_ref = false; - u8 function; + u8 function, tcm_function = TMR_UNKNOWN; hdr = (struct iscsi_tm *) buf; hdr->flags &= ~ISCSI_FLAG_CMD_FINAL; @@ -1805,10 +1805,6 @@ iscsit_handle_task_mgt_cmd(struct iscsi_ * LIO-Target $FABRIC_MOD */ if (function != ISCSI_TM_FUNC_TASK_REASSIGN) { - - u8 tcm_function; - int ret; - transport_init_se_cmd(&cmd->se_cmd, &iscsi_ops, conn->sess->se_sess, 0, DMA_NONE, TCM_SIMPLE_TAG, cmd->sense_buffer + 2); @@ -1844,15 +1840,14 @@ iscsit_handle_task_mgt_cmd(struct iscsi_ return iscsit_add_reject_cmd(cmd, ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf); } - - ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req, - tcm_function, GFP_KERNEL); - if (ret < 0) - return iscsit_add_reject_cmd(cmd, + } + ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req, tcm_function, + GFP_KERNEL); + if (ret < 0) + return iscsit_add_reject_cmd(cmd, ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf); - cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req; - } + cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req; cmd->iscsi_opcode = ISCSI_OP_SCSI_TMFUNC; cmd->i_state = ISTATE_SEND_TASKMGTRSP; Patches currently in stable-queue which might be from bart.vanassche(a)sandisk.com are queue-4.4/target-iscsi-fix-iscsi-task-reassignment-handling.patch

7 years, 2 months

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[Linux-stable-mirror] Patch "target: Fix node_acl demo-mode + uncached dynamic shutdown regression" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled target: Fix node_acl demo-mode + uncached dynamic shutdown regression to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: target-fix-node_acl-demo-mode-uncached-dynamic-shutdown-regression.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 6f48655facfd7f7ccfe6d252ac0fe319ab02e4dd Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab(a)linux-iscsi.org> Date: Sun, 6 Aug 2017 16:10:03 -0700 Subject: target: Fix node_acl demo-mode + uncached dynamic shutdown regression From: Nicholas Bellinger <nab(a)linux-iscsi.org> commit 6f48655facfd7f7ccfe6d252ac0fe319ab02e4dd upstream. This patch fixes a generate_node_acls = 1 + cache_dynamic_acls = 0 regression, that was introduced by commit 01d4d673558985d9a118e1e05026633c3e2ade9b Author: Nicholas Bellinger <nab(a)linux-iscsi.org> Date: Wed Dec 7 12:55:54 2016 -0800 which originally had the proper list_del_init() usage, but was dropped during list review as it was thought unnecessary by HCH. However, list_del_init() usage is required during the special generate_node_acls = 1 + cache_dynamic_acls = 0 case when transport_free_session() does a list_del(&se_nacl->acl_list), followed by target_complete_nacl() doing the same thing. This was manifesting as a general protection fault as reported by Justin: kernel: general protection fault: 0000 [#1] SMP kernel: Modules linked in: kernel: CPU: 0 PID: 11047 Comm: iscsi_ttx Not tainted 4.13.0-rc2.x86_64.1+ #20 kernel: Hardware name: Intel Corporation S5500BC/S5500BC, BIOS S5500.86B.01.00.0064.050520141428 05/05/2014 kernel: task: ffff88026939e800 task.stack: ffffc90007884000 kernel: RIP: 0010:target_put_nacl+0x49/0xb0 kernel: RSP: 0018:ffffc90007887d70 EFLAGS: 00010246 kernel: RAX: dead000000000200 RBX: ffff8802556ca000 RCX: 0000000000000000 kernel: RDX: dead000000000100 RSI: 0000000000000246 RDI: ffff8802556ce028 kernel: RBP: ffffc90007887d88 R08: 0000000000000001 R09: 0000000000000000 kernel: R10: ffffc90007887df8 R11: ffffea0009986900 R12: ffff8802556ce020 kernel: R13: ffff8802556ce028 R14: ffff8802556ce028 R15: ffffffff88d85540 kernel: FS: 0000000000000000(0000) GS:ffff88027fc00000(0000) knlGS:0000000000000000 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kernel: CR2: 00007fffe36f5f94 CR3: 0000000009209000 CR4: 00000000003406f0 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kernel: Call Trace: kernel: transport_free_session+0x67/0x140 kernel: transport_deregister_session+0x7a/0xc0 kernel: iscsit_close_session+0x92/0x210 kernel: iscsit_close_connection+0x5f9/0x840 kernel: iscsit_take_action_for_connection_exit+0xfe/0x110 kernel: iscsi_target_tx_thread+0x140/0x1e0 kernel: ? wait_woken+0x90/0x90 kernel: kthread+0x124/0x160 kernel: ? iscsit_thread_get_cpumask+0x90/0x90 kernel: ? kthread_create_on_node+0x40/0x40 kernel: ret_from_fork+0x22/0x30 kernel: Code: 00 48 89 fb 4c 8b a7 48 01 00 00 74 68 4d 8d 6c 24 08 4c 89 ef e8 e8 28 43 00 48 8b 93 20 04 00 00 48 8b 83 28 04 00 00 4c 89 ef <48> 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 48 89 83 20 kernel: RIP: target_put_nacl+0x49/0xb0 RSP: ffffc90007887d70 kernel: ---[ end trace f12821adbfd46fed ]--- To address this, go ahead and use proper list_del_list() for all cases of se_nacl->acl_list deletion. Reported-by: Justin Maggard <jmaggard01(a)gmail.com> Tested-by: Justin Maggard <jmaggard01(a)gmail.com> Cc: Justin Maggard <jmaggard01(a)gmail.com> Signed-off-by: Nicholas Bellinger <nab(a)linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/target/target_core_tpg.c | 4 ++-- drivers/target/target_core_transport.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -350,7 +350,7 @@ void core_tpg_del_initiator_node_acl(str if (acl->dynamic_node_acl) { acl->dynamic_node_acl = 0; } - list_del(&acl->acl_list); + list_del_init(&acl->acl_list); tpg->num_node_acls--; mutex_unlock(&tpg->acl_node_mutex); @@ -572,7 +572,7 @@ int core_tpg_deregister(struct se_portal * in transport_deregister_session(). */ list_for_each_entry_safe(nacl, nacl_tmp, &node_list, acl_list) { - list_del(&nacl->acl_list); + list_del_init(&nacl->acl_list); se_tpg->num_node_acls--; core_tpg_wait_for_nacl_pr_ref(nacl); --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -431,7 +431,7 @@ static void target_complete_nacl(struct } mutex_lock(&se_tpg->acl_node_mutex); - list_del(&nacl->acl_list); + list_del_init(&nacl->acl_list); mutex_unlock(&se_tpg->acl_node_mutex); core_tpg_wait_for_nacl_pr_ref(nacl); @@ -503,7 +503,7 @@ void transport_free_session(struct se_se spin_unlock_irqrestore(&se_nacl->nacl_sess_lock, flags); if (se_nacl->dynamic_stop) - list_del(&se_nacl->acl_list); + list_del_init(&se_nacl->acl_list); } mutex_unlock(&se_tpg->acl_node_mutex); Patches currently in stable-queue which might be from nab(a)linux-iscsi.org are queue-4.4/target-fix-node_acl-demo-mode-uncached-dynamic-shutdown-regression.patch queue-4.4/target-iscsi-fix-iscsi-task-reassignment-handling.patch

7 years, 2 months

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[Linux-stable-mirror] Patch "brcmfmac: remove setting IBSS mode when stopping AP" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled brcmfmac: remove setting IBSS mode when stopping AP to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: brcmfmac-remove-setting-ibss-mode-when-stopping-ap.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 9029679f66d976f8c720eb03c4898274803c9923 Mon Sep 17 00:00:00 2001 From: Chi-hsien Lin <Chi-Hsien.Lin(a)cypress.com> Date: Thu, 18 May 2017 17:22:19 +0800 Subject: brcmfmac: remove setting IBSS mode when stopping AP From: Chi-hsien Lin <Chi-Hsien.Lin(a)cypress.com> commit 9029679f66d976f8c720eb03c4898274803c9923 upstream. Upon stopping an AP interface the driver disable INFRA mode effectively setting the interface in IBSS mode. However, this may affect other interfaces running in INFRA mode. For instance, if user creates and stops hostap daemon on virtual interface, then association cannot work on primary interface because default BSS has been set to IBSS mode in firmware side. The IBSS mode should be set when cfg80211 changes the interface. Reviewed-by: Wright Feng <wright.feng(a)cypress.com> Signed-off-by: Chi-hsien Lin <Chi-Hsien.Lin(a)cypress.com> [kvalo(a)codeaurora.org: rephased commit log based on discussion] Signed-off-by: Wright Feng <wright.feng(a)cypress.com> Signed-off-by: Kalle Valo <kvalo(a)codeaurora.org> Cc: Philipp Rosenberger <p.rosenberger(a)linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c | 3 --- 1 file changed, 3 deletions(-) --- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c @@ -4295,9 +4295,6 @@ static int brcmf_cfg80211_stop_ap(struct err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0); if (err < 0) brcmf_err("setting AP mode failed %d\n", err); - err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0); - if (err < 0) - brcmf_err("setting INFRA mode failed %d\n", err); if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) brcmf_fil_iovar_int_set(ifp, "mbss", 0); err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, Patches currently in stable-queue which might be from Chi-Hsien.Lin(a)cypress.com are queue-4.4/brcmfmac-remove-setting-ibss-mode-when-stopping-ap.patch

7 years, 2 months

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[Linux-stable-mirror] Patch "security/keys: add CONFIG_KEYS_COMPAT to Kconfig" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled security/keys: add CONFIG_KEYS_COMPAT to Kconfig to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: security-keys-add-config_keys_compat-to-kconfig.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 47b2c3fff4932e6fc17ce13d51a43c6969714e20 Mon Sep 17 00:00:00 2001 From: Bilal Amarni <bilal.amarni(a)gmail.com> Date: Thu, 8 Jun 2017 14:47:26 +0100 Subject: security/keys: add CONFIG_KEYS_COMPAT to Kconfig From: Bilal Amarni <bilal.amarni(a)gmail.com> commit 47b2c3fff4932e6fc17ce13d51a43c6969714e20 upstream. CONFIG_KEYS_COMPAT is defined in arch-specific Kconfigs and is missing for several 64-bit architectures : mips, parisc, tile. At the moment and for those architectures, calling in 32-bit userspace the keyctl syscall would return an ENOSYS error. This patch moves the CONFIG_KEYS_COMPAT option to security/keys/Kconfig, to make sure the compatibility wrapper is registered by default for any 64-bit architecture as long as it is configured with CONFIG_COMPAT. [DH: Modified to remove arm64 compat enablement also as requested by Eric Biggers] Signed-off-by: Bilal Amarni <bilal.amarni(a)gmail.com> Signed-off-by: David Howells <dhowells(a)redhat.com> Reviewed-by: Arnd Bergmann <arnd(a)arndb.de> cc: Eric Biggers <ebiggers3(a)gmail.com> Signed-off-by: James Morris <james.l.morris(a)oracle.com> Cc: James Cowgill <james.cowgill(a)mips.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/powerpc/Kconfig | 5 ----- arch/s390/Kconfig | 3 --- arch/sparc/Kconfig | 3 --- arch/x86/Kconfig | 4 ---- security/keys/Kconfig | 4 ++++ 5 files changed, 4 insertions(+), 15 deletions(-) --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -1082,11 +1082,6 @@ source "arch/powerpc/Kconfig.debug" source "security/Kconfig" -config KEYS_COMPAT - bool - depends on COMPAT && KEYS - default y - source "crypto/Kconfig" config PPC_LIB_RHEAP --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -346,9 +346,6 @@ config COMPAT config SYSVIPC_COMPAT def_bool y if COMPAT && SYSVIPC -config KEYS_COMPAT - def_bool y if COMPAT && KEYS - config SMP def_bool y prompt "Symmetric multi-processing support" --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -549,9 +549,6 @@ config SYSVIPC_COMPAT depends on COMPAT && SYSVIPC default y -config KEYS_COMPAT - def_bool y if COMPAT && KEYS - endmenu source "net/Kconfig" --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2641,10 +2641,6 @@ config COMPAT_FOR_U64_ALIGNMENT config SYSVIPC_COMPAT def_bool y depends on SYSVIPC - -config KEYS_COMPAT - def_bool y - depends on KEYS endif endmenu --- a/security/keys/Kconfig +++ b/security/keys/Kconfig @@ -20,6 +20,10 @@ config KEYS If you are unsure as to whether this is required, answer N. +config KEYS_COMPAT + def_bool y + depends on COMPAT && KEYS + config PERSISTENT_KEYRINGS bool "Enable register of persistent per-UID keyrings" depends on KEYS Patches currently in stable-queue which might be from bilal.amarni(a)gmail.com are queue-4.4/security-keys-add-config_keys_compat-to-kconfig.patch

7 years, 2 months

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[Linux-stable-mirror] Patch "dmaengine: dmatest: warn user when dma test times out" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled dmaengine: dmatest: warn user when dma test times out to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: dmaengine-dmatest-warn-user-when-dma-test-times-out.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From a9df21e34b422f79d9a9fa5c3eff8c2a53491be6 Mon Sep 17 00:00:00 2001 From: Adam Wallis <awallis(a)codeaurora.org> Date: Thu, 2 Nov 2017 08:53:30 -0400 Subject: dmaengine: dmatest: warn user when dma test times out From: Adam Wallis <awallis(a)codeaurora.org> commit a9df21e34b422f79d9a9fa5c3eff8c2a53491be6 upstream. Commit adfa543e7314 ("dmatest: don't use set_freezable_with_signal()") introduced a bug (that is in fact documented by the patch commit text) that leaves behind a dangling pointer. Since the done_wait structure is allocated on the stack, future invocations to the DMATEST can produce undesirable results (e.g., corrupted spinlocks). Ideally, this would be cleaned up in the thread handler, but at the very least, the kernel is left in a very precarious scenario that can lead to some long debug sessions when the crash comes later. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=197605 Signed-off-by: Adam Wallis <awallis(a)codeaurora.org> Signed-off-by: Vinod Koul <vinod.koul(a)intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/dma/dmatest.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -702,6 +702,7 @@ static int dmatest_func(void *data) * free it this time?" dancing. For now, just * leave it dangling. */ + WARN(1, "dmatest: Kernel stack may be corrupted!!\n"); dmaengine_unmap_put(um); result("test timed out", total_tests, src_off, dst_off, len, 0); Patches currently in stable-queue which might be from awallis(a)codeaurora.org are queue-4.14/dmaengine-dmatest-warn-user-when-dma-test-times-out.patch

7 years, 2 months

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[Linux-stable-mirror] Patch "dmaengine: dmatest: warn user when dma test times out" has been added to the 4.13-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled dmaengine: dmatest: warn user when dma test times out to the 4.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: dmaengine-dmatest-warn-user-when-dma-test-times-out.patch and it can be found in the queue-4.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From a9df21e34b422f79d9a9fa5c3eff8c2a53491be6 Mon Sep 17 00:00:00 2001 From: Adam Wallis <awallis(a)codeaurora.org> Date: Thu, 2 Nov 2017 08:53:30 -0400 Subject: dmaengine: dmatest: warn user when dma test times out From: Adam Wallis <awallis(a)codeaurora.org> commit a9df21e34b422f79d9a9fa5c3eff8c2a53491be6 upstream. Commit adfa543e7314 ("dmatest: don't use set_freezable_with_signal()") introduced a bug (that is in fact documented by the patch commit text) that leaves behind a dangling pointer. Since the done_wait structure is allocated on the stack, future invocations to the DMATEST can produce undesirable results (e.g., corrupted spinlocks). Ideally, this would be cleaned up in the thread handler, but at the very least, the kernel is left in a very precarious scenario that can lead to some long debug sessions when the crash comes later. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=197605 Signed-off-by: Adam Wallis <awallis(a)codeaurora.org> Signed-off-by: Vinod Koul <vinod.koul(a)intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/dma/dmatest.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -696,6 +696,7 @@ static int dmatest_func(void *data) * free it this time?" dancing. For now, just * leave it dangling. */ + WARN(1, "dmatest: Kernel stack may be corrupted!!\n"); dmaengine_unmap_put(um); result("test timed out", total_tests, src_off, dst_off, len, 0); Patches currently in stable-queue which might be from awallis(a)codeaurora.org are queue-4.13/dmaengine-dmatest-warn-user-when-dma-test-times-out.patch

7 years, 2 months

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[Linux-stable-mirror] Patch "target/iscsi: Fix iSCSI task reassignment handling" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled target/iscsi: Fix iSCSI task reassignment handling to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: target-iscsi-fix-iscsi-task-reassignment-handling.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 59b6986dbfcdab96a971f9663221849de79a7556 Mon Sep 17 00:00:00 2001 From: Bart Van Assche <bart.vanassche(a)sandisk.com> Date: Thu, 5 Jan 2017 12:39:57 +0100 Subject: target/iscsi: Fix iSCSI task reassignment handling From: Bart Van Assche <bart.vanassche(a)sandisk.com> commit 59b6986dbfcdab96a971f9663221849de79a7556 upstream. Allocate a task management request structure for all task management requests, including task reassignment. This change avoids that the se_tmr->response assignment dereferences an uninitialized se_tmr pointer. Reported-by: Moshe David <mdavid(a)infinidat.com> Signed-off-by: Bart Van Assche <bart.vanassche(a)sandisk.com> Reviewed-by: Hannes Reinecke <hare(a)suse.com> Reviewed-by: Christoph Hellwig <hch(a)lst.de> Cc: Moshe David <mdavid(a)infinidat.com> Signed-off-by: Nicholas Bellinger <nab(a)linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/target/iscsi/iscsi_target.c | 19 +++++++------------ include/target/target_core_base.h | 1 + 2 files changed, 8 insertions(+), 12 deletions(-) --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -1749,7 +1749,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_ struct iscsi_tm *hdr; int out_of_order_cmdsn = 0, ret; bool sess_ref = false; - u8 function; + u8 function, tcm_function = TMR_UNKNOWN; hdr = (struct iscsi_tm *) buf; hdr->flags &= ~ISCSI_FLAG_CMD_FINAL; @@ -1795,10 +1795,6 @@ iscsit_handle_task_mgt_cmd(struct iscsi_ * LIO-Target $FABRIC_MOD */ if (function != ISCSI_TM_FUNC_TASK_REASSIGN) { - - u8 tcm_function; - int ret; - transport_init_se_cmd(&cmd->se_cmd, &lio_target_fabric_configfs->tf_ops, conn->sess->se_sess, 0, DMA_NONE, @@ -1835,15 +1831,14 @@ iscsit_handle_task_mgt_cmd(struct iscsi_ return iscsit_add_reject_cmd(cmd, ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf); } - - ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req, - tcm_function, GFP_KERNEL); - if (ret < 0) - return iscsit_add_reject_cmd(cmd, + } + ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req, tcm_function, + GFP_KERNEL); + if (ret < 0) + return iscsit_add_reject_cmd(cmd, ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf); - cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req; - } + cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req; cmd->iscsi_opcode = ISCSI_OP_SCSI_TMFUNC; cmd->i_state = ISTATE_SEND_TASKMGTRSP; --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -231,6 +231,7 @@ enum tcm_tmreq_table { TMR_LUN_RESET = 5, TMR_TARGET_WARM_RESET = 6, TMR_TARGET_COLD_RESET = 7, + TMR_UNKNOWN = 0xff, }; /* fabric independent task management response values */ Patches currently in stable-queue which might be from bart.vanassche(a)sandisk.com are queue-3.18/target-iscsi-fix-iscsi-task-reassignment-handling.patch

7 years, 2 months

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[Linux-stable-mirror] Patch "security/keys: add CONFIG_KEYS_COMPAT to Kconfig" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled security/keys: add CONFIG_KEYS_COMPAT to Kconfig to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: security-keys-add-config_keys_compat-to-kconfig.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 47b2c3fff4932e6fc17ce13d51a43c6969714e20 Mon Sep 17 00:00:00 2001 From: Bilal Amarni <bilal.amarni(a)gmail.com> Date: Thu, 8 Jun 2017 14:47:26 +0100 Subject: security/keys: add CONFIG_KEYS_COMPAT to Kconfig From: Bilal Amarni <bilal.amarni(a)gmail.com> commit 47b2c3fff4932e6fc17ce13d51a43c6969714e20 upstream. CONFIG_KEYS_COMPAT is defined in arch-specific Kconfigs and is missing for several 64-bit architectures : mips, parisc, tile. At the moment and for those architectures, calling in 32-bit userspace the keyctl syscall would return an ENOSYS error. This patch moves the CONFIG_KEYS_COMPAT option to security/keys/Kconfig, to make sure the compatibility wrapper is registered by default for any 64-bit architecture as long as it is configured with CONFIG_COMPAT. [DH: Modified to remove arm64 compat enablement also as requested by Eric Biggers] Signed-off-by: Bilal Amarni <bilal.amarni(a)gmail.com> Signed-off-by: David Howells <dhowells(a)redhat.com> Reviewed-by: Arnd Bergmann <arnd(a)arndb.de> cc: Eric Biggers <ebiggers3(a)gmail.com> Signed-off-by: James Morris <james.l.morris(a)oracle.com> Cc: James Cowgill <james.cowgill(a)mips.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/powerpc/Kconfig | 5 ----- arch/s390/Kconfig | 3 --- arch/sparc/Kconfig | 3 --- arch/x86/Kconfig | 4 ---- security/keys/Kconfig | 4 ++++ 5 files changed, 4 insertions(+), 15 deletions(-) --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -1070,11 +1070,6 @@ source "arch/powerpc/Kconfig.debug" source "security/Kconfig" -config KEYS_COMPAT - bool - depends on COMPAT && KEYS - default y - source "crypto/Kconfig" config PPC_LIB_RHEAP --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -332,9 +332,6 @@ config COMPAT config SYSVIPC_COMPAT def_bool y if COMPAT && SYSVIPC -config KEYS_COMPAT - def_bool y if COMPAT && KEYS - config SMP def_bool y prompt "Symmetric multi-processing support" --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -542,9 +542,6 @@ config SYSVIPC_COMPAT depends on COMPAT && SYSVIPC default y -config KEYS_COMPAT - def_bool y if COMPAT && KEYS - endmenu source "net/Kconfig" --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2471,10 +2471,6 @@ config COMPAT_FOR_U64_ALIGNMENT config SYSVIPC_COMPAT def_bool y depends on SYSVIPC - -config KEYS_COMPAT - def_bool y - depends on KEYS endif endmenu --- a/security/keys/Kconfig +++ b/security/keys/Kconfig @@ -20,6 +20,10 @@ config KEYS If you are unsure as to whether this is required, answer N. +config KEYS_COMPAT + def_bool y + depends on COMPAT && KEYS + config PERSISTENT_KEYRINGS bool "Enable register of persistent per-UID keyrings" depends on KEYS Patches currently in stable-queue which might be from bilal.amarni(a)gmail.com are queue-3.18/security-keys-add-config_keys_compat-to-kconfig.patch

7 years, 2 months

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[Linux-stable-mirror] [PATCH-4.4.y 0/2] target: stable backports

by Nicholas A. Bellinger

From: Nicholas Bellinger <nab(a)linux-iscsi.org> Hi Greg-KH, Here are two target patches for v4.4.y stable, the first of which did not originally include a stable CC, and the latter did not apply due to a minor context change. The series has been cut against v4.4.98. Please apply at your earliest convenience. Thank you, --nab Bart Van Assche (1): target/iscsi: Fix iSCSI task reassignment handling Nicholas Bellinger (1): target: Fix node_acl demo-mode + uncached dynamic shutdown regression drivers/target/iscsi/iscsi_target.c | 19 +++++++------------ drivers/target/target_core_tpg.c | 4 ++-- drivers/target/target_core_transport.c | 4 ++-- include/target/target_core_base.h | 1 + 4 files changed, 12 insertions(+), 16 deletions(-) -- 1.8.5.3

7 years, 2 months

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