{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-47696", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-30T16:00:12.942Z", "datePublished": "2024-10-21T11:53:33.950Z", "dateUpdated": "2024-12-19T09:26:16.864Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T09:26:16.864Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency\n\nIn the commit aee2424246f9 (\"RDMA/iwcm: Fix a use-after-free related to\ndestroying CM IDs\"), the function flush_workqueue is invoked to flush the\nwork queue iwcm_wq.\n\nBut at that time, the work queue iwcm_wq was created via the function\nalloc_ordered_workqueue without the flag WQ_MEM_RECLAIM.\n\nBecause the current process is trying to flush the whole iwcm_wq, if\niwcm_wq doesn't have the flag WQ_MEM_RECLAIM, verify that the current\nprocess is not reclaiming memory or running on a workqueue which doesn't\nhave the flag WQ_MEM_RECLAIM as that can break forward-progress guarantee\nleading to a deadlock.\n\nThe call trace is as below:\n\n[ 125.350876][ T1430] Call Trace:\n[ 125.356281][ T1430] <TASK>\n[ 125.361285][ T1430] ? __warn (kernel/panic.c:693)\n[ 125.367640][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.375689][ T1430] ? report_bug (lib/bug.c:180 lib/bug.c:219)\n[ 125.382505][ T1430] ? handle_bug (arch/x86/kernel/traps.c:239)\n[ 125.388987][ T1430] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1))\n[ 125.395831][ T1430] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621)\n[ 125.403125][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.410984][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.418764][ T1430] __flush_workqueue (kernel/workqueue.c:3970)\n[ 125.426021][ T1430] ? __pfx___might_resched (kernel/sched/core.c:10151)\n[ 125.433431][ T1430] ? destroy_cm_id (drivers/infiniband/core/iwcm.c:375) iw_cm\n[ 125.441209][ T1430] ? __pfx___flush_workqueue (kernel/workqueue.c:3910)\n[ 125.473900][ T1430] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162)\n[ 125.473909][ T1430] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161)\n[ 125.482537][ T1430] _destroy_id (drivers/infiniband/core/cma.c:2044) rdma_cm\n[ 125.495072][ T1430] nvme_rdma_free_queue (drivers/nvme/host/rdma.c:656 drivers/nvme/host/rdma.c:650) nvme_rdma\n[ 125.505827][ T1430] nvme_rdma_reset_ctrl_work (drivers/nvme/host/rdma.c:2180) nvme_rdma\n[ 125.505831][ T1430] process_one_work (kernel/workqueue.c:3231)\n[ 125.515122][ T1430] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3393)\n[ 125.515127][ T1430] ? __pfx_worker_thread (kernel/workqueue.c:3339)\n[ 125.531837][ T1430] kthread (kernel/kthread.c:389)\n[ 125.539864][ T1430] ? __pfx_kthread (kernel/kthread.c:342)\n[ 125.550628][ T1430] ret_from_fork (arch/x86/kernel/process.c:147)\n[ 125.558840][ T1430] ? __pfx_kthread (kernel/kthread.c:342)\n[ 125.558844][ T1430] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)\n[ 125.566487][ T1430] </TASK>\n[ 125.566488][ T1430] ---[ end trace 0000000000000000 ]---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/core/iwcm.c"], "versions": [{"version": "d91d253c87fd1efece521ff2612078a35af673c6", "lessThan": "da2708a19f45b4a7278adf523837c8db21d1e2b5", "status": "affected", "versionType": "git"}, {"version": "7f25f296fc9bd0435be14e89bf657cd615a23574", "lessThan": "29b3bbd912b8db86df7a3c180b910ccb621f5635", "status": "affected", "versionType": "git"}, {"version": "94ee7ff99b87435ec63211f632918dc7f44dac79", "lessThan": "2efe8da2ddbf873385b4bc55366d09350b408df6", "status": "affected", "versionType": "git"}, {"version": "557d035fe88d78dd51664f4dc0e1896c04c97cf6", "lessThan": "da0392698c62397c19deb1b9e9bdf2fbb5a9420e", "status": "affected", "versionType": "git"}, {"version": "dc8074b8901caabb97c2d353abd6b4e7fa5a59a5", "lessThan": "a64f30db12bdc937c5108158d98c8eab1925c548", "status": "affected", "versionType": "git"}, {"version": "ff5bbbdee08287d75d72e65b72a2b76d9637892a", "lessThan": "8b7df76356d098f85f3bd2c7cf6fb43f531893d7", "status": "affected", "versionType": "git"}, {"version": "ee39384ee787e86e9db4efb843818ef0ea9cb8ae", "lessThan": "c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58", "status": "affected", "versionType": "git"}, {"version": "aee2424246f9f1dadc33faa78990c1e2eb7826e4", "lessThan": "a09dc967b3c58899e259c0aea092f421d22a0b04", "status": "affected", "versionType": "git"}, {"version": "aee2424246f9f1dadc33faa78990c1e2eb7826e4", "lessThan": "86dfdd8288907f03c18b7fb462e0e232c4f98d89", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/core/iwcm.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.323", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.285", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.227", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.168", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.113", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.54", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.13", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.2", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/da2708a19f45b4a7278adf523837c8db21d1e2b5"}, {"url": "https://git.kernel.org/stable/c/29b3bbd912b8db86df7a3c180b910ccb621f5635"}, {"url": "https://git.kernel.org/stable/c/2efe8da2ddbf873385b4bc55366d09350b408df6"}, {"url": "https://git.kernel.org/stable/c/da0392698c62397c19deb1b9e9bdf2fbb5a9420e"}, {"url": "https://git.kernel.org/stable/c/a64f30db12bdc937c5108158d98c8eab1925c548"}, {"url": "https://git.kernel.org/stable/c/8b7df76356d098f85f3bd2c7cf6fb43f531893d7"}, {"url": "https://git.kernel.org/stable/c/c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58"}, {"url": "https://git.kernel.org/stable/c/a09dc967b3c58899e259c0aea092f421d22a0b04"}, {"url": "https://git.kernel.org/stable/c/86dfdd8288907f03c18b7fb462e0e232c4f98d89"}], "title": "RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-47696", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-21T13:05:12.849051Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-21T13:14:14.398Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-47696", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-21T13:05:12.849051Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-21T13:05:15.991Z"}}], "cna": {"title": "RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d91d253c87fd1efece521ff2612078a35af673c6", "lessThan": "da2708a19f45b4a7278adf523837c8db21d1e2b5", "versionType": "git"}, {"status": "affected", "version": "7f25f296fc9bd0435be14e89bf657cd615a23574", "lessThan": "29b3bbd912b8db86df7a3c180b910ccb621f5635", "versionType": "git"}, {"status": "affected", "version": "94ee7ff99b87435ec63211f632918dc7f44dac79", "lessThan": "2efe8da2ddbf873385b4bc55366d09350b408df6", "versionType": "git"}, {"status": "affected", "version": "557d035fe88d78dd51664f4dc0e1896c04c97cf6", "lessThan": "da0392698c62397c19deb1b9e9bdf2fbb5a9420e", "versionType": "git"}, {"status": "affected", "version": "dc8074b8901caabb97c2d353abd6b4e7fa5a59a5", "lessThan": "a64f30db12bdc937c5108158d98c8eab1925c548", "versionType": "git"}, {"status": "affected", "version": "ff5bbbdee08287d75d72e65b72a2b76d9637892a", "lessThan": "8b7df76356d098f85f3bd2c7cf6fb43f531893d7", "versionType": "git"}, {"status": "affected", "version": "ee39384ee787e86e9db4efb843818ef0ea9cb8ae", "lessThan": "c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58", "versionType": "git"}, {"status": "affected", "version": "aee2424246f9f1dadc33faa78990c1e2eb7826e4", "lessThan": "a09dc967b3c58899e259c0aea092f421d22a0b04", "versionType": "git"}, {"status": "affected", "version": "aee2424246f9f1dadc33faa78990c1e2eb7826e4", "lessThan": "86dfdd8288907f03c18b7fb462e0e232c4f98d89", "versionType": "git"}], "programFiles": ["drivers/infiniband/core/iwcm.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"status": "unaffected", "version": "0", "lessThan": "6.11", "versionType": "semver"}, {"status": "unaffected", "version": "4.19.323", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.285", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.227", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.168", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.113", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.54", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.13", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11.2", "versionType": "semver", "lessThanOrEqual": "6.11.*"}, {"status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/infiniband/core/iwcm.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/da2708a19f45b4a7278adf523837c8db21d1e2b5"}, {"url": "https://git.kernel.org/stable/c/29b3bbd912b8db86df7a3c180b910ccb621f5635"}, {"url": "https://git.kernel.org/stable/c/2efe8da2ddbf873385b4bc55366d09350b408df6"}, {"url": "https://git.kernel.org/stable/c/da0392698c62397c19deb1b9e9bdf2fbb5a9420e"}, {"url": "https://git.kernel.org/stable/c/a64f30db12bdc937c5108158d98c8eab1925c548"}, {"url": "https://git.kernel.org/stable/c/8b7df76356d098f85f3bd2c7cf6fb43f531893d7"}, {"url": "https://git.kernel.org/stable/c/c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58"}, {"url": "https://git.kernel.org/stable/c/a09dc967b3c58899e259c0aea092f421d22a0b04"}, {"url": "https://git.kernel.org/stable/c/86dfdd8288907f03c18b7fb462e0e232c4f98d89"}], "x_generator": {"engine": "bippy-5f407fcff5a0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency\n\nIn the commit aee2424246f9 (\"RDMA/iwcm: Fix a use-after-free related to\ndestroying CM IDs\"), the function flush_workqueue is invoked to flush the\nwork queue iwcm_wq.\n\nBut at that time, the work queue iwcm_wq was created via the function\nalloc_ordered_workqueue without the flag WQ_MEM_RECLAIM.\n\nBecause the current process is trying to flush the whole iwcm_wq, if\niwcm_wq doesn't have the flag WQ_MEM_RECLAIM, verify that the current\nprocess is not reclaiming memory or running on a workqueue which doesn't\nhave the flag WQ_MEM_RECLAIM as that can break forward-progress guarantee\nleading to a deadlock.\n\nThe call trace is as below:\n\n[ 125.350876][ T1430] Call Trace:\n[ 125.356281][ T1430] <TASK>\n[ 125.361285][ T1430] ? __warn (kernel/panic.c:693)\n[ 125.367640][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.375689][ T1430] ? report_bug (lib/bug.c:180 lib/bug.c:219)\n[ 125.382505][ T1430] ? handle_bug (arch/x86/kernel/traps.c:239)\n[ 125.388987][ T1430] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1))\n[ 125.395831][ T1430] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621)\n[ 125.403125][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.410984][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.418764][ T1430] __flush_workqueue (kernel/workqueue.c:3970)\n[ 125.426021][ T1430] ? __pfx___might_resched (kernel/sched/core.c:10151)\n[ 125.433431][ T1430] ? destroy_cm_id (drivers/infiniband/core/iwcm.c:375) iw_cm\n[ 125.441209][ T1430] ? __pfx___flush_workqueue (kernel/workqueue.c:3910)\n[ 125.473900][ T1430] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162)\n[ 125.473909][ T1430] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161)\n[ 125.482537][ T1430] _destroy_id (drivers/infiniband/core/cma.c:2044) rdma_cm\n[ 125.495072][ T1430] nvme_rdma_free_queue (drivers/nvme/host/rdma.c:656 drivers/nvme/host/rdma.c:650) nvme_rdma\n[ 125.505827][ T1430] nvme_rdma_reset_ctrl_work (drivers/nvme/host/rdma.c:2180) nvme_rdma\n[ 125.505831][ T1430] process_one_work (kernel/workqueue.c:3231)\n[ 125.515122][ T1430] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3393)\n[ 125.515127][ T1430] ? __pfx_worker_thread (kernel/workqueue.c:3339)\n[ 125.531837][ T1430] kthread (kernel/kthread.c:389)\n[ 125.539864][ T1430] ? __pfx_kthread (kernel/kthread.c:342)\n[ 125.550628][ T1430] ret_from_fork (arch/x86/kernel/process.c:147)\n[ 125.558840][ T1430] ? __pfx_kthread (kernel/kthread.c:342)\n[ 125.558844][ T1430] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)\n[ 125.566487][ T1430] </TASK>\n[ 125.566488][ T1430] ---[ end trace 0000000000000000 ]---"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T09:26:16.864Z"}}}, "cveMetadata": {"cveId": "CVE-2024-47696", "state": "PUBLISHED", "dateUpdated": "2024-12-19T09:26:16.864Z", "dateReserved": "2024-09-30T16:00:12.942Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-10-21T11:53:33.950Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F09E537F-AD7C-4CDD-94C7-982AB40F0250", "versionEndExcluding": "5.4", "versionStartIncluding": "4.19.320", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "90BDC6BE-7108-4153-B444-9458B801A490", "versionEndExcluding": "5.10", "versionStartIncluding": "5.4.282", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7E8BD058-58ED-4814-A074-86C0143050D0", "versionEndExcluding": "5.10.227", "versionStartIncluding": "5.10.224", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7C1D9631-2FF8-491B-B364-0C17573AE285", "versionEndExcluding": "5.15.168", "versionStartIncluding": "5.15.165", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B972EDA4-04F8-4699-8D9D-A5DC02BE8618", "versionEndExcluding": "6.1.113", "versionStartIncluding": "6.1.103", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "120EDEE6-5DF3-41B7-B899-A20906FEC9A6", "versionEndExcluding": "6.6.54", "versionStartIncluding": "6.6.44", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6C8722B8-BE3E-4B88-AA44-E3441523B260", "versionEndExcluding": "6.10.13", "versionStartIncluding": "6.10.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AB755D26-97F4-43B6-8604-CD076811E181", "versionEndExcluding": "6.11.2", "versionStartIncluding": "6.11", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency\n\nIn the commit aee2424246f9 (\"RDMA/iwcm: Fix a use-after-free related to\ndestroying CM IDs\"), the function flush_workqueue is invoked to flush the\nwork queue iwcm_wq.\n\nBut at that time, the work queue iwcm_wq was created via the function\nalloc_ordered_workqueue without the flag WQ_MEM_RECLAIM.\n\nBecause the current process is trying to flush the whole iwcm_wq, if\niwcm_wq doesn't have the flag WQ_MEM_RECLAIM, verify that the current\nprocess is not reclaiming memory or running on a workqueue which doesn't\nhave the flag WQ_MEM_RECLAIM as that can break forward-progress guarantee\nleading to a deadlock.\n\nThe call trace is as below:\n\n[ 125.350876][ T1430] Call Trace:\n[ 125.356281][ T1430] <TASK>\n[ 125.361285][ T1430] ? __warn (kernel/panic.c:693)\n[ 125.367640][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.375689][ T1430] ? report_bug (lib/bug.c:180 lib/bug.c:219)\n[ 125.382505][ T1430] ? handle_bug (arch/x86/kernel/traps.c:239)\n[ 125.388987][ T1430] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1))\n[ 125.395831][ T1430] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621)\n[ 125.403125][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.410984][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.418764][ T1430] __flush_workqueue (kernel/workqueue.c:3970)\n[ 125.426021][ T1430] ? __pfx___might_resched (kernel/sched/core.c:10151)\n[ 125.433431][ T1430] ? destroy_cm_id (drivers/infiniband/core/iwcm.c:375) iw_cm\n[ 125.441209][ T1430] ? __pfx___flush_workqueue (kernel/workqueue.c:3910)\n[ 125.473900][ T1430] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162)\n[ 125.473909][ T1430] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161)\n[ 125.482537][ T1430] _destroy_id (drivers/infiniband/core/cma.c:2044) rdma_cm\n[ 125.495072][ T1430] nvme_rdma_free_queue (drivers/nvme/host/rdma.c:656 drivers/nvme/host/rdma.c:650) nvme_rdma\n[ 125.505827][ T1430] nvme_rdma_reset_ctrl_work (drivers/nvme/host/rdma.c:2180) nvme_rdma\n[ 125.505831][ T1430] process_one_work (kernel/workqueue.c:3231)\n[ 125.515122][ T1430] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3393)\n[ 125.515127][ T1430] ? __pfx_worker_thread (kernel/workqueue.c:3339)\n[ 125.531837][ T1430] kthread (kernel/kthread.c:389)\n[ 125.539864][ T1430] ? __pfx_kthread (kernel/kthread.c:342)\n[ 125.550628][ T1430] ret_from_fork (arch/x86/kernel/process.c:147)\n[ 125.558840][ T1430] ? __pfx_kthread (kernel/kthread.c:342)\n[ 125.558844][ T1430] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)\n[ 125.566487][ T1430] </TASK>\n[ 125.566488][ T1430] ---[ end trace 0000000000000000 ]---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency En el commit aee2424246f9 (\"RDMA/iwcm: Fix a use-after-free related to destroying CM IDs\"), se invoca la funci\u00f3n flush_workqueue para vaciar la cola de trabajo iwcm_wq. Pero en ese momento, la cola de trabajo iwcm_wq se cre\u00f3 a trav\u00e9s de la funci\u00f3n alloc_ordered_workqueue sin el indicador WQ_MEM_RECLAIM. Debido a que el proceso actual est\u00e1 intentando vaciar todo iwcm_wq, si iwcm_wq no tiene el indicador WQ_MEM_RECLAIM, verifique que el proceso actual no est\u00e9 recuperando memoria o ejecut\u00e1ndose en una cola de trabajo que no tenga el indicador WQ_MEM_RECLAIM, ya que eso puede romper la garant\u00eda de progreso hacia adelante y provocar un bloqueo. El seguimiento de la llamada es el siguiente: [ 125.350876][ T1430] Seguimiento de la llamada: [ 125.356281][ T1430] [ 125.361285][ T1430] ? __warn (kernel/panic.c:693) [ 125.367640][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) [ 125.375689][ T1430] ? report_bug (lib/bug.c:180 lib/bug.c:219) [ 125.382505][ T1430] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminador 1)) [ 125.395831][ T1430] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) [ 125.403125][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminador 9)) [ 125.410984][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminador 9)) [ 125.418764][ T1430] __flush_workqueue (kernel/workqueue.c:3970) [ 125.426021][ T1430] ? __pfx___might_resched (kernel/sched/core.c:10151) [ 125.433431][ T1430] ? destroy_cm_id (drivers/infiniband/core/iwcm.c:375) iw_cm [ 125.441209][ T1430] ? __pfx___flush_workqueue (kernel/workqueue.c:3910) [ 125.473900][ T1430] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) [ 125.473909][ T1430] ? __pfx__raw_spin_lock_irqsave (n\u00facleo/bloqueo/spinlock.c:161) [ 125.482537][ T1430] _destroy_id (controladores/infiniband/core/cma.c:2044) rdma_cm [ 125.495072][ T1430] nvme_rdma_free_queue (controladores/nvme/host/rdma.c:656 controladores/nvme/host/rdma.c:650) nvme_rdma [ 125.505827][ T1430] nvme_rdma_reset_ctrl_work (controladores/nvme/host/rdma.c:2180) nvme_rdma [ 125.505831][ T1430] proceso_uno_trabajo (kernel/workqueue.c:3231) [ 125.515122][ T1430] subproceso_de_trabajo (kernel/workqueue.c:3306 kernel/workqueue.c:3393) [ 125.515127][ T1430] ? __pfx_subproceso_de_trabajo (kernel/workqueue.c:3339) [ 125.531837][ T1430] subproceso_de_trabajo (kernel/kthread.c:389) [ 125.539864][ T1430] ? __pfx_kthread (kernel/kthread.c:342) [ 125.550628][ T1430] ret_from_fork (arch/x86/kernel/process.c:147) [ 125.558840][ T1430] ? __pfx_kthread (kernel/kthread.c:342) [ 125.558844][ T1430] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) [ 125.566487][ T1430] [ 125.566488][ T1430] ---[ fin de seguimiento 000000000000000 ]---"}], "id": "CVE-2024-47696", "lastModified": "2024-11-08T16:15:25.313", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-10-21T12:15:06.257", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/29b3bbd912b8db86df7a3c180b910ccb621f5635"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2efe8da2ddbf873385b4bc55366d09350b408df6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/86dfdd8288907f03c18b7fb462e0e232c4f98d89"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8b7df76356d098f85f3bd2c7cf6fb43f531893d7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a09dc967b3c58899e259c0aea092f421d22a0b04"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a64f30db12bdc937c5108158d98c8eab1925c548"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da0392698c62397c19deb1b9e9bdf2fbb5a9420e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/da2708a19f45b4a7278adf523837c8db21d1e2b5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency", "id": "2320221", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320221"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-833", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nRDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency\nIn the commit aee2424246f9 (\"RDMA/iwcm: Fix a use-after-free related to\ndestroying CM IDs\"), the function flush_workqueue is invoked to flush the\nwork queue iwcm_wq.\nBut at that time, the work queue iwcm_wq was created via the function\nalloc_ordered_workqueue without the flag WQ_MEM_RECLAIM.\nBecause the current process is trying to flush the whole iwcm_wq, if\niwcm_wq doesn't have the flag WQ_MEM_RECLAIM, verify that the current\nprocess is not reclaiming memory or running on a workqueue which doesn't\nhave the flag WQ_MEM_RECLAIM as that can break forward-progress guarantee\nleading to a deadlock.\nThe call trace is as below:\n[ 125.350876][ T1430] Call Trace:\n[ 125.356281][ T1430] <TASK>\n[ 125.361285][ T1430] ? __warn (kernel/panic.c:693)\n[ 125.367640][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.375689][ T1430] ? report_bug (lib/bug.c:180 lib/bug.c:219)\n[ 125.382505][ T1430] ? handle_bug (arch/x86/kernel/traps.c:239)\n[ 125.388987][ T1430] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1))\n[ 125.395831][ T1430] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621)\n[ 125.403125][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.410984][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9))\n[ 125.418764][ T1430] __flush_workqueue (kernel/workqueue.c:3970)\n[ 125.426021][ T1430] ? __pfx___might_resched (kernel/sched/core.c:10151)\n[ 125.433431][ T1430] ? destroy_cm_id (drivers/infiniband/core/iwcm.c:375) iw_cm\n[ 125.441209][ T1430] ? __pfx___flush_workqueue (kernel/workqueue.c:3910)\n[ 125.473900][ T1430] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162)\n[ 125.473909][ T1430] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161)\n[ 125.482537][ T1430] _destroy_id (drivers/infiniband/core/cma.c:2044) rdma_cm\n[ 125.495072][ T1430] nvme_rdma_free_queue (drivers/nvme/host/rdma.c:656 drivers/nvme/host/rdma.c:650) nvme_rdma\n[ 125.505827][ T1430] nvme_rdma_reset_ctrl_work (drivers/nvme/host/rdma.c:2180) nvme_rdma\n[ 125.505831][ T1430] process_one_work (kernel/workqueue.c:3231)\n[ 125.515122][ T1430] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3393)\n[ 125.515127][ T1430] ? __pfx_worker_thread (kernel/workqueue.c:3339)\n[ 125.531837][ T1430] kthread (kernel/kthread.c:389)\n[ 125.539864][ T1430] ? __pfx_kthread (kernel/kthread.c:342)\n[ 125.550628][ T1430] ret_from_fork (arch/x86/kernel/process.c:147)\n[ 125.558840][ T1430] ? __pfx_kthread (kernel/kthread.c:342)\n[ 125.558844][ T1430] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)\n[ 125.566487][ T1430] </TASK>\n[ 125.566488][ T1430] ---[ end trace 0000000000000000 ]---", "A denial of service (DoS) vulnerability was found in the Linux kernel. The flush_workqueue function is invoked to flush the iwcm_wq work queue, but at that time, the iwcm_wq work queue is created via the alloc_ordered_workqueue function without the WQ_MEM_RECLAIM flag. Since the current process is trying to flush the whole iwcm_wq, if iwcm_wq doesn't have the WQ_MEM_RECLAIM flag, a work queue which doesn't have the WQ_MEM_RECLAIM flag can break forward-progress guarantee, leading to a deadlock."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-47696", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-47696\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-47696\nhttps://lore.kernel.org/linux-cve-announce/2024102113-CVE-2024-47696-e1f7@gregkh/T"], "statement": "This vulnerability results in a deadlock condition; it cannot be used to exploit confidentiality or integrity of the system and can only lead to denial of service, which is why CVSS has been marked as such.", "threat_severity": "Moderate"}