{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-47696", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "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] \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] \n[ 125.566488][ T1430] ---[ end trace 0000000000000000 ]---" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "94ee7ff99b87", "version_value": "2efe8da2ddbf" }, { "version_affected": "<", "version_name": "557d035fe88d", "version_value": "da0392698c62" }, { "version_affected": "<", "version_name": "dc8074b8901c", "version_value": "a64f30db12bd" }, { "version_affected": "<", "version_name": "ff5bbbdee082", "version_value": "8b7df76356d0" }, { "version_affected": "<", "version_name": "ee39384ee787", "version_value": "c8b18a75282c" }, { "version_affected": "<", "version_name": "aee2424246f9", "version_value": "a09dc967b3c5" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "6.11", "status": "affected" }, { "version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.227", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.168", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.113", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.54", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.10.13", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.11.2", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.12-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/2efe8da2ddbf873385b4bc55366d09350b408df6", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/2efe8da2ddbf873385b4bc55366d09350b408df6" }, { "url": "https://git.kernel.org/stable/c/da0392698c62397c19deb1b9e9bdf2fbb5a9420e", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/da0392698c62397c19deb1b9e9bdf2fbb5a9420e" }, { "url": "https://git.kernel.org/stable/c/a64f30db12bdc937c5108158d98c8eab1925c548", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/a64f30db12bdc937c5108158d98c8eab1925c548" }, { "url": "https://git.kernel.org/stable/c/8b7df76356d098f85f3bd2c7cf6fb43f531893d7", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/8b7df76356d098f85f3bd2c7cf6fb43f531893d7" }, { "url": "https://git.kernel.org/stable/c/c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58" }, { "url": "https://git.kernel.org/stable/c/a09dc967b3c58899e259c0aea092f421d22a0b04", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/a09dc967b3c58899e259c0aea092f421d22a0b04" }, { "url": "https://git.kernel.org/stable/c/86dfdd8288907f03c18b7fb462e0e232c4f98d89", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/86dfdd8288907f03c18b7fb462e0e232c4f98d89" } ] }, "generator": { "engine": "bippy-c9c4e1df01b2" } }