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[PATCH OLK-6.6] ASoC: amd: Adjust error handling in case of absent codec device
by Zhang Changzhong 20 Aug '24

20 Aug '24

From: Aleksandr Mishin <amishin(a)t-argos.ru> stable inclusion from stable-v6.6.44 commit 99b642dac24f6d09ba3ebf1d690be8aefff86164 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAKQ4U CVE: CVE-2024-43818 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 5080808c3339de2220c602ab7c7fa23dc6c1a5a3 ] acpi_get_first_physical_node() can return NULL in several cases (no such device, ACPI table error, reference count drop to 0, etc). Existing check just emit error message, but doesn't perform return. Then this NULL pointer is passed to devm_acpi_dev_add_driver_gpios() where it is dereferenced. Adjust this error handling by adding error code return. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 02527c3f2300 ("ASoC: amd: add Machine driver for Jadeite platform") Signed-off-by: Aleksandr Mishin <amishin(a)t-argos.ru> Link: https://patch.msgid.link/20240703191007.8524-1-amishin@t-argos.ru Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhang Changzhong <zhangchangzhong(a)huawei.com> --- sound/soc/amd/acp-es8336.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sound/soc/amd/acp-es8336.c b/sound/soc/amd/acp-es8336.c index 5e56d3a..49bffc5 100644 --- a/sound/soc/amd/acp-es8336.c +++ b/sound/soc/amd/acp-es8336.c @@ -203,8 +203,10 @@ static int st_es8336_late_probe(struct snd_soc_card *card) codec_dev = acpi_get_first_physical_node(adev); acpi_dev_put(adev); - if (!codec_dev) + if (!codec_dev) { dev_err(card->dev, "can not find codec dev\n"); + return -ENODEV; + } ret = devm_acpi_dev_add_driver_gpios(codec_dev, acpi_es8336_gpios); if (ret) -- 2.9.5

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[PATCH openEuler-22.03-LTS-SP1] ipvs: properly dereference pe in ip_vs_add_service
by Zhengchao Shao 20 Aug '24

20 Aug '24

From: Chen Hanxiao <chenhx.fnst(a)fujitsu.com> mainline inclusion from mainline-v6.11-rc1 commit cbd070a4ae62f119058973f6d2c984e325bce6e7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAKQ7N CVE: CVE-2024-42322 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------- Use pe directly to resolve sparse warning: net/netfilter/ipvs/ip_vs_ctl.c:1471:27: warning: dereference of noderef expression Fixes: 39b972231536 ("ipvs: handle connections started by real-servers") Signed-off-by: Chen Hanxiao <chenhx.fnst(a)fujitsu.com> Acked-by: Julian Anastasov <ja(a)ssi.bg> Acked-by: Simon Horman <horms(a)kernel.org> Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Conflicts: net/netfilter/ipvs/ip_vs_ctl.c [The conflict occurs because the commit 705dd3444081("ipvs: use kthreads for stats estimation") is not merged] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/netfilter/ipvs/ip_vs_ctl.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 29ec3ef63edc..0b37ffe0449a 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -1384,18 +1384,18 @@ ip_vs_add_service(struct netns_ipvs *ipvs, struct ip_vs_service_user_kern *u, sched = NULL; } - /* Bind the ct retriever */ - RCU_INIT_POINTER(svc->pe, pe); - pe = NULL; - /* Update the virtual service counters */ if (svc->port == FTPPORT) atomic_inc(&ipvs->ftpsvc_counter); else if (svc->port == 0) atomic_inc(&ipvs->nullsvc_counter); - if (svc->pe && svc->pe->conn_out) + if (pe && pe->conn_out) atomic_inc(&ipvs->conn_out_counter); + /* Bind the ct retriever */ + RCU_INIT_POINTER(svc->pe, pe); + pe = NULL; + ip_vs_start_estimator(ipvs, &svc->stats); /* Count only IPv4 services for old get/setsockopt interface */ -- 2.34.1

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[PATCH OLK-5.10] ipvs: properly dereference pe in ip_vs_add_service
by Zhengchao Shao 20 Aug '24

20 Aug '24

From: Chen Hanxiao <chenhx.fnst(a)fujitsu.com> mainline inclusion from mainline-v6.11-rc1 commit cbd070a4ae62f119058973f6d2c984e325bce6e7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAKQ7N CVE: CVE-2024-42322 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------- Use pe directly to resolve sparse warning: net/netfilter/ipvs/ip_vs_ctl.c:1471:27: warning: dereference of noderef expression Fixes: 39b972231536 ("ipvs: handle connections started by real-servers") Signed-off-by: Chen Hanxiao <chenhx.fnst(a)fujitsu.com> Acked-by: Julian Anastasov <ja(a)ssi.bg> Acked-by: Simon Horman <horms(a)kernel.org> Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Conflicts: net/netfilter/ipvs/ip_vs_ctl.c [The conflict occurs because the commit 705dd3444081("ipvs: use kthreads for stats estimation") is not merged] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/netfilter/ipvs/ip_vs_ctl.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index d0b64c36471d..9dab1e286dff 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -1384,18 +1384,18 @@ ip_vs_add_service(struct netns_ipvs *ipvs, struct ip_vs_service_user_kern *u, sched = NULL; } - /* Bind the ct retriever */ - RCU_INIT_POINTER(svc->pe, pe); - pe = NULL; - /* Update the virtual service counters */ if (svc->port == FTPPORT) atomic_inc(&ipvs->ftpsvc_counter); else if (svc->port == 0) atomic_inc(&ipvs->nullsvc_counter); - if (svc->pe && svc->pe->conn_out) + if (pe && pe->conn_out) atomic_inc(&ipvs->conn_out_counter); + /* Bind the ct retriever */ + RCU_INIT_POINTER(svc->pe, pe); + pe = NULL; + ip_vs_start_estimator(ipvs, &svc->stats); /* Count only IPv4 services for old get/setsockopt interface */ -- 2.34.1

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[PATCH openEuler-1.0-LTS] media: venus: fix use after free in vdec_close
by Xia Fukun 20 Aug '24

20 Aug '24

From: Dikshita Agarwal <quic_dikshita(a)quicinc.com> stable inclusion from stable-v4.19.320 commit ad8cf035baf29467158e0550c7a42b7bb43d1db6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAKQ1L CVE: CVE-2024-42313 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… -------------------------------- commit a0157b5aa34eb43ec4c5510f9c260bbb03be937e upstream. There appears to be a possible use after free with vdec_close(). The firmware will add buffer release work to the work queue through HFI callbacks as a normal part of decoding. Randomly closing the decoder device from userspace during normal decoding can incur a read after free for inst. Fix it by cancelling the work in vdec_close. Cc: stable(a)vger.kernel.org Fixes: af2c3834c8ca ("[media] media: venus: adding core part and helper functions") Signed-off-by: Dikshita Agarwal <quic_dikshita(a)quicinc.com> Acked-by: Vikash Garodia <quic_vgarodia(a)quicinc.com> Signed-off-by: Stanimir Varbanov <stanimir.k.varbanov(a)gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco(a)xs4all.nl> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- drivers/media/platform/qcom/venus/vdec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c index e3972dbf4c9a3..297a0e84b8dfd 100644 --- a/drivers/media/platform/qcom/venus/vdec.c +++ b/drivers/media/platform/qcom/venus/vdec.c @@ -1094,6 +1094,7 @@ static int vdec_close(struct file *file) { struct venus_inst *inst = to_inst(file); + cancel_work_sync(&inst->delayed_process_work); v4l2_m2m_ctx_release(inst->m2m_ctx); v4l2_m2m_release(inst->m2m_dev); vdec_ctrl_deinit(inst); -- 2.34.1

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[PATCH OLK-5.10] s390/sclp: Fix sclp_init() cleanup on failure
by Guo Mengqi 20 Aug '24

20 Aug '24

From: Heiko Carstens <hca(a)linux.ibm.com> stable inclusion from stable-v5.10.223 commit 2e51db7ab71b89dc5a17068f5e201c69f13a4c9a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAGEM8 CVE: CVE-2024-41068 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 6434b33faaa063df500af355ee6c3942e0f8d982 ] If sclp_init() fails it only partially cleans up: if there are multiple failing calls to sclp_init() sclp_state_change_event will be added several times to sclp_reg_list, which results in the following warning: ------------[ cut here ]------------ list_add double add: new=000003ffe1598c10, prev=000003ffe1598bf0, next=000003ffe1598c10. WARNING: CPU: 0 PID: 1 at lib/list_debug.c:35 __list_add_valid_or_report+0xde/0xf8 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.10.0-rc3 Krnl PSW : 0404c00180000000 000003ffe0d6076a (__list_add_valid_or_report+0xe2/0xf8) R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3 ... Call Trace: [<000003ffe0d6076a>] __list_add_valid_or_report+0xe2/0xf8 ([<000003ffe0d60766>] __list_add_valid_or_report+0xde/0xf8) [<000003ffe0a8d37e>] sclp_init+0x40e/0x450 [<000003ffe00009f2>] do_one_initcall+0x42/0x1e0 [<000003ffe15b77a6>] do_initcalls+0x126/0x150 [<000003ffe15b7a0a>] kernel_init_freeable+0x1ba/0x1f8 [<000003ffe0d6650e>] kernel_init+0x2e/0x180 [<000003ffe000301c>] __ret_from_fork+0x3c/0x60 [<000003ffe0d759ca>] ret_from_fork+0xa/0x30 Fix this by removing sclp_state_change_event from sclp_reg_list when sclp_init() fails. Reviewed-by: Peter Oberparleiter <oberpar(a)linux.ibm.com> Signed-off-by: Heiko Carstens <hca(a)linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev(a)linux.ibm.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: dinglongwei <dinglongwei1(a)huawei.com> --- drivers/s390/char/sclp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c index d2ab3f07c008..8296e6bc229e 100644 --- a/drivers/s390/char/sclp.c +++ b/drivers/s390/char/sclp.c @@ -1208,6 +1208,7 @@ sclp_init(void) fail_unregister_reboot_notifier: unregister_reboot_notifier(&sclp_reboot_notifier); fail_init_state_uninitialized: + list_del(&sclp_state_change_event.list); sclp_init_state = sclp_init_state_uninitialized; free_page((unsigned long) sclp_read_sccb); free_page((unsigned long) sclp_init_sccb); -- 2.17.1

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[PATCH OLK-5.10] drm/amd/display: Add NULL pointer check for kzalloc
by Guo Mengqi 20 Aug '24

20 Aug '24

From: Hersen Wu <hersenxs.wu(a)amd.com> mainline inclusion from mainline-v6.10-rc1 commit 8e65a1b7118acf6af96449e1e66b7adbc9396912 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAGWWS CVE: CVE-2024-42122 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- [Why & How] Check return pointer of kzalloc before using it. Reviewed-by: Alex Hung <alex.hung(a)amd.com> Acked-by: Wayne Lin <wayne.lin(a)amd.com> Signed-off-by: Hersen Wu <hersenxs.wu(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Conflicts: drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c [adjust context conflicts] Signed-off-by: Chen Jun <chenjun102(a)huawei.com> --- .../gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c | 8 ++++++++ drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c | 3 +++ 2 files changed, 11 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c index cab47bb21172..77c51e052118 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c @@ -549,11 +549,19 @@ void dcn3_clk_mgr_construct( dce_clock_read_ss_info(clk_mgr); clk_mgr->base.bw_params = kzalloc(sizeof(*clk_mgr->base.bw_params), GFP_KERNEL); + if (!clk_mgr->base.bw_params) { + BREAK_TO_DEBUGGER(); + return; + } /* need physical address of table to give to PMFW */ clk_mgr->wm_range_table = dm_helpers_allocate_gpu_mem(clk_mgr->base.ctx, DC_MEM_ALLOC_TYPE_GART, sizeof(WatermarksExternal_t), &clk_mgr->wm_range_table_addr); + if (!clk_mgr->wm_range_table) { + BREAK_TO_DEBUGGER(); + return; + } } void dcn3_clk_mgr_destroy(struct clk_mgr_internal *clk_mgr) diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c index 32993ce24a58..7f6a3c679a2e 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c @@ -2373,6 +2373,9 @@ bool dcn30_validate_bandwidth(struct dc *dc, BW_VAL_TRACE_COUNT(); + if (!pipes) + goto validate_fail; + out = dcn30_internal_validate_bw(dc, context, pipes, &pipe_cnt, &vlevel, fast_validate); if (pipe_cnt == 0) -- 2.17.1

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[PATCH openEuler-22.03-LTS-SP1] drm/amd/display: Add NULL pointer check for kzalloc
by Guo Mengqi 20 Aug '24

20 Aug '24

From: Hersen Wu <hersenxs.wu(a)amd.com> mainline inclusion from mainline-v6.10-rc1 commit 8e65a1b7118acf6af96449e1e66b7adbc9396912 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAGWWS CVE: CVE-2024-42122 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- [Why & How] Check return pointer of kzalloc before using it. Reviewed-by: Alex Hung <alex.hung(a)amd.com> Acked-by: Wayne Lin <wayne.lin(a)amd.com> Signed-off-by: Hersen Wu <hersenxs.wu(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Conflicts: drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c [adjust context conflicts] Signed-off-by: Chen Jun <chenjun102(a)huawei.com> --- .../gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c | 8 ++++++++ drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c | 3 +++ 2 files changed, 11 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c index cab47bb21172..77c51e052118 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c @@ -549,11 +549,19 @@ void dcn3_clk_mgr_construct( dce_clock_read_ss_info(clk_mgr); clk_mgr->base.bw_params = kzalloc(sizeof(*clk_mgr->base.bw_params), GFP_KERNEL); + if (!clk_mgr->base.bw_params) { + BREAK_TO_DEBUGGER(); + return; + } /* need physical address of table to give to PMFW */ clk_mgr->wm_range_table = dm_helpers_allocate_gpu_mem(clk_mgr->base.ctx, DC_MEM_ALLOC_TYPE_GART, sizeof(WatermarksExternal_t), &clk_mgr->wm_range_table_addr); + if (!clk_mgr->wm_range_table) { + BREAK_TO_DEBUGGER(); + return; + } } void dcn3_clk_mgr_destroy(struct clk_mgr_internal *clk_mgr) diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c index 32993ce24a58..7f6a3c679a2e 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c @@ -2373,6 +2373,9 @@ bool dcn30_validate_bandwidth(struct dc *dc, BW_VAL_TRACE_COUNT(); + if (!pipes) + goto validate_fail; + out = dcn30_internal_validate_bw(dc, context, pipes, &pipe_cnt, &vlevel, fast_validate); if (pipe_cnt == 0) -- 2.17.1

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[PATCH openEuler-22.03-LTS-SP1] s390/sclp: Fix sclp_init() cleanup on failure
by Guo Mengqi 20 Aug '24

20 Aug '24

From: Heiko Carstens <hca(a)linux.ibm.com> stable inclusion from stable-v5.10.223 commit 2e51db7ab71b89dc5a17068f5e201c69f13a4c9a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAGEM8 CVE: CVE-2024-41068 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 6434b33faaa063df500af355ee6c3942e0f8d982 ] If sclp_init() fails it only partially cleans up: if there are multiple failing calls to sclp_init() sclp_state_change_event will be added several times to sclp_reg_list, which results in the following warning: ------------[ cut here ]------------ list_add double add: new=000003ffe1598c10, prev=000003ffe1598bf0, next=000003ffe1598c10. WARNING: CPU: 0 PID: 1 at lib/list_debug.c:35 __list_add_valid_or_report+0xde/0xf8 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.10.0-rc3 Krnl PSW : 0404c00180000000 000003ffe0d6076a (__list_add_valid_or_report+0xe2/0xf8) R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3 ... Call Trace: [<000003ffe0d6076a>] __list_add_valid_or_report+0xe2/0xf8 ([<000003ffe0d60766>] __list_add_valid_or_report+0xde/0xf8) [<000003ffe0a8d37e>] sclp_init+0x40e/0x450 [<000003ffe00009f2>] do_one_initcall+0x42/0x1e0 [<000003ffe15b77a6>] do_initcalls+0x126/0x150 [<000003ffe15b7a0a>] kernel_init_freeable+0x1ba/0x1f8 [<000003ffe0d6650e>] kernel_init+0x2e/0x180 [<000003ffe000301c>] __ret_from_fork+0x3c/0x60 [<000003ffe0d759ca>] ret_from_fork+0xa/0x30 Fix this by removing sclp_state_change_event from sclp_reg_list when sclp_init() fails. Reviewed-by: Peter Oberparleiter <oberpar(a)linux.ibm.com> Signed-off-by: Heiko Carstens <hca(a)linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev(a)linux.ibm.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: dinglongwei <dinglongwei1(a)huawei.com> --- drivers/s390/char/sclp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c index d2ab3f07c008..8296e6bc229e 100644 --- a/drivers/s390/char/sclp.c +++ b/drivers/s390/char/sclp.c @@ -1208,6 +1208,7 @@ sclp_init(void) fail_unregister_reboot_notifier: unregister_reboot_notifier(&sclp_reboot_notifier); fail_init_state_uninitialized: + list_del(&sclp_state_change_event.list); sclp_init_state = sclp_init_state_uninitialized; free_page((unsigned long) sclp_read_sccb); free_page((unsigned long) sclp_init_sccb); -- 2.17.1

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[PATCH openEuler-1.0-LTS] RDMA/iwcm: Fix a use-after-free related to destroying CM IDs
by Liu Jian 20 Aug '24

20 Aug '24

From: Bart Van Assche <bvanassche(a)acm.org> mainline inclusion from mainline-v6.11-rc1 commit aee2424246f9f1dadc33faa78990c1e2eb7826e4 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAKQB2 CVE: CVE-2024-42285 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------------- iw_conn_req_handler() associates a new struct rdma_id_private (conn_id) with an existing struct iw_cm_id (cm_id) as follows: conn_id->cm_id.iw = cm_id; cm_id->context = conn_id; cm_id->cm_handler = cma_iw_handler; rdma_destroy_id() frees both the cm_id and the struct rdma_id_private. Make sure that cm_work_handler() does not trigger a use-after-free by only freeing of the struct rdma_id_private after all pending work has finished. Cc: stable(a)vger.kernel.org Fixes: 59c68ac31e15 ("iw_cm: free cm_id resources on the last deref") Reviewed-by: Zhu Yanjun <yanjun.zhu(a)linux.dev> Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki(a)wdc.com> Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> Link: https://lore.kernel.org/r/20240605145117.397751-6-bvanassche@acm.org Signed-off-by: Leon Romanovsky <leon(a)kernel.org> Conflicts: drivers/infiniband/core/iwcm.c [Did not backport 54102dd410b03.] Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- drivers/infiniband/core/iwcm.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c index 5d676cff41f4..720e1a5b34ad 100644 --- a/drivers/infiniband/core/iwcm.c +++ b/drivers/infiniband/core/iwcm.c @@ -367,8 +367,10 @@ EXPORT_SYMBOL(iw_cm_disconnect); * * Clean up all resources associated with the connection and release * the initial reference taken by iw_create_cm_id. + * + * Returns true if and only if the last cm_id_priv reference has been dropped. */ -static void destroy_cm_id(struct iw_cm_id *cm_id) +static bool destroy_cm_id(struct iw_cm_id *cm_id) { struct iwcm_id_private *cm_id_priv; unsigned long flags; @@ -436,7 +438,7 @@ static void destroy_cm_id(struct iw_cm_id *cm_id) iwpm_remove_mapping(&cm_id->local_addr, RDMA_NL_IWCM); } - (void)iwcm_deref_id(cm_id_priv); + return iwcm_deref_id(cm_id_priv); } /* @@ -447,7 +449,8 @@ static void destroy_cm_id(struct iw_cm_id *cm_id) */ void iw_destroy_cm_id(struct iw_cm_id *cm_id) { - destroy_cm_id(cm_id); + if (!destroy_cm_id(cm_id)) + flush_workqueue(iwcm_wq); } EXPORT_SYMBOL(iw_destroy_cm_id); @@ -1020,7 +1023,7 @@ static void cm_work_handler(struct work_struct *_work) if (!test_bit(IWCM_F_DROP_EVENTS, &cm_id_priv->flags)) { ret = process_event(cm_id_priv, &levent); if (ret) - destroy_cm_id(&cm_id_priv->id); + WARN_ON_ONCE(destroy_cm_id(&cm_id_priv->id)); } else pr_debug("dropping event %d\n", levent.event); if (iwcm_deref_id(cm_id_priv)) -- 2.34.1

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[PATCH openEuler-22.03-LTS-SP1] RDMA/iwcm: Fix a use-after-free related to destroying CM IDs
by Liu Jian 20 Aug '24

20 Aug '24

From: Bart Van Assche <bvanassche(a)acm.org> mainline inclusion from mainline-v6.11-rc1 commit aee2424246f9f1dadc33faa78990c1e2eb7826e4 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAKQB2 CVE: CVE-2024-42285 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------------- iw_conn_req_handler() associates a new struct rdma_id_private (conn_id) with an existing struct iw_cm_id (cm_id) as follows: conn_id->cm_id.iw = cm_id; cm_id->context = conn_id; cm_id->cm_handler = cma_iw_handler; rdma_destroy_id() frees both the cm_id and the struct rdma_id_private. Make sure that cm_work_handler() does not trigger a use-after-free by only freeing of the struct rdma_id_private after all pending work has finished. Cc: stable(a)vger.kernel.org Fixes: 59c68ac31e15 ("iw_cm: free cm_id resources on the last deref") Reviewed-by: Zhu Yanjun <yanjun.zhu(a)linux.dev> Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki(a)wdc.com> Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> Link: https://lore.kernel.org/r/20240605145117.397751-6-bvanassche@acm.org Signed-off-by: Leon Romanovsky <leon(a)kernel.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- drivers/infiniband/core/iwcm.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c index 75b6da00065a..7a6747850aea 100644 --- a/drivers/infiniband/core/iwcm.c +++ b/drivers/infiniband/core/iwcm.c @@ -370,8 +370,10 @@ EXPORT_SYMBOL(iw_cm_disconnect); * * Clean up all resources associated with the connection and release * the initial reference taken by iw_create_cm_id. + * + * Returns true if and only if the last cm_id_priv reference has been dropped. */ -static void destroy_cm_id(struct iw_cm_id *cm_id) +static bool destroy_cm_id(struct iw_cm_id *cm_id) { struct iwcm_id_private *cm_id_priv; struct ib_qp *qp; @@ -441,7 +443,7 @@ static void destroy_cm_id(struct iw_cm_id *cm_id) iwpm_remove_mapping(&cm_id->local_addr, RDMA_NL_IWCM); } - (void)iwcm_deref_id(cm_id_priv); + return iwcm_deref_id(cm_id_priv); } /* @@ -452,7 +454,8 @@ static void destroy_cm_id(struct iw_cm_id *cm_id) */ void iw_destroy_cm_id(struct iw_cm_id *cm_id) { - destroy_cm_id(cm_id); + if (!destroy_cm_id(cm_id)) + flush_workqueue(iwcm_wq); } EXPORT_SYMBOL(iw_destroy_cm_id); @@ -1036,7 +1039,7 @@ static void cm_work_handler(struct work_struct *_work) if (!test_bit(IWCM_F_DROP_EVENTS, &cm_id_priv->flags)) { ret = process_event(cm_id_priv, &levent); if (ret) - destroy_cm_id(&cm_id_priv->id); + WARN_ON_ONCE(destroy_cm_id(&cm_id_priv->id)); } else pr_debug("dropping event %d\n", levent.event); if (iwcm_deref_id(cm_id_priv)) -- 2.34.1

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