{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53031", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-27T16:40:15.757Z", "datePublished": "2025-03-27T16:43:59.607Z", "dateUpdated": "2026-05-11T19:37:13.647Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:37:13.647Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/imc-pmu: Fix use of mutex in IRQs disabled section\n\nCurrent imc-pmu code triggers a WARNING with CONFIG_DEBUG_ATOMIC_SLEEP\nand CONFIG_PROVE_LOCKING enabled, while running a thread_imc event.\n\nCommand to trigger the warning:\n # perf stat -e thread_imc/CPM_CS_FROM_L4_MEM_X_DPTEG/ sleep 5\n\n Performance counter stats for 'sleep 5':\n\n 0 thread_imc/CPM_CS_FROM_L4_MEM_X_DPTEG/\n\n 5.002117947 seconds time elapsed\n\n 0.000131000 seconds user\n 0.001063000 seconds sys\n\nBelow is snippet of the warning in dmesg:\n\n BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580\n in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 2869, name: perf-exec\n preempt_count: 2, expected: 0\n 4 locks held by perf-exec/2869:\n #0: c00000004325c540 (&sig->cred_guard_mutex){+.+.}-{3:3}, at: bprm_execve+0x64/0xa90\n #1: c00000004325c5d8 (&sig->exec_update_lock){++++}-{3:3}, at: begin_new_exec+0x460/0xef0\n #2: c0000003fa99d4e0 (&cpuctx_lock){-...}-{2:2}, at: perf_event_exec+0x290/0x510\n #3: c000000017ab8418 (&ctx->lock){....}-{2:2}, at: perf_event_exec+0x29c/0x510\n irq event stamp: 4806\n hardirqs last enabled at (4805): [] _raw_spin_unlock_irqrestore+0x94/0xd0\n hardirqs last disabled at (4806): [] perf_event_exec+0x394/0x510\n softirqs last enabled at (0): [] copy_process+0xc34/0x1ff0\n softirqs last disabled at (0): [<0000000000000000>] 0x0\n CPU: 36 PID: 2869 Comm: perf-exec Not tainted 6.2.0-rc2-00011-g1247637727f2 #61\n Hardware name: 8375-42A POWER9 0x4e1202 opal:v7.0-16-g9b85f7d961 PowerNV\n Call Trace:\n dump_stack_lvl+0x98/0xe0 (unreliable)\n __might_resched+0x2f8/0x310\n __mutex_lock+0x6c/0x13f0\n thread_imc_event_add+0xf4/0x1b0\n event_sched_in+0xe0/0x210\n merge_sched_in+0x1f0/0x600\n visit_groups_merge.isra.92.constprop.166+0x2bc/0x6c0\n ctx_flexible_sched_in+0xcc/0x140\n ctx_sched_in+0x20c/0x2a0\n ctx_resched+0x104/0x1c0\n perf_event_exec+0x340/0x510\n begin_new_exec+0x730/0xef0\n load_elf_binary+0x3f8/0x1e10\n ...\n do not call blocking ops when !TASK_RUNNING; state=2001 set at [<00000000fd63e7cf>] do_nanosleep+0x60/0x1a0\n WARNING: CPU: 36 PID: 2869 at kernel/sched/core.c:9912 __might_sleep+0x9c/0xb0\n CPU: 36 PID: 2869 Comm: sleep Tainted: G W 6.2.0-rc2-00011-g1247637727f2 #61\n Hardware name: 8375-42A POWER9 0x4e1202 opal:v7.0-16-g9b85f7d961 PowerNV\n NIP: c000000000194a1c LR: c000000000194a18 CTR: c000000000a78670\n REGS: c00000004d2134e0 TRAP: 0700 Tainted: G W (6.2.0-rc2-00011-g1247637727f2)\n MSR: 9000000000021033 CR: 48002824 XER: 00000000\n CFAR: c00000000013fb64 IRQMASK: 1\n\nThe above warning triggered because the current imc-pmu code uses mutex\nlock in interrupt disabled sections. The function mutex_lock()\ninternally calls __might_resched(), which will check if IRQs are\ndisabled and in case IRQs are disabled, it will trigger the warning.\n\nFix the issue by changing the mutex lock to spinlock.\n\n[mpe: Fix comments, trim oops in change log, add reported-by tags]" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/powerpc/include/asm/imc-pmu.h", "arch/powerpc/perf/imc-pmu.c" ], "versions": [ { "version": "8f95faaac56c18b32d0e23ace55417a440abdb7e", "lessThan": "d0c6d2a31026102d4738b47a610bed4401b9834f", "status": "affected", "versionType": "git" }, { "version": "8f95faaac56c18b32d0e23ace55417a440abdb7e", "lessThan": "8cbeb60320ac45a8240b561c8ef466b86c34dedc", "status": "affected", "versionType": "git" }, { "version": "8f95faaac56c18b32d0e23ace55417a440abdb7e", "lessThan": "a90d339f1f66be4a946769b565668e2bd0686dfa", "status": "affected", "versionType": "git" }, { "version": "8f95faaac56c18b32d0e23ace55417a440abdb7e", "lessThan": "424bcb570cb320d1d15238cd4c933522b90f78fa", "status": "affected", "versionType": "git" }, { "version": "8f95faaac56c18b32d0e23ace55417a440abdb7e", "lessThan": "76d588dddc459fefa1da96e0a081a397c5c8e216", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/powerpc/include/asm/imc-pmu.h", "arch/powerpc/perf/imc-pmu.c" ], "versions": [ { "version": "4.14", "status": "affected" }, { "version": "0", "lessThan": "4.14", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.229", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.164", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.89", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.7", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.4.229" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.10.164" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.15.89" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.1.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d0c6d2a31026102d4738b47a610bed4401b9834f" }, { "url": "https://git.kernel.org/stable/c/8cbeb60320ac45a8240b561c8ef466b86c34dedc" }, { "url": "https://git.kernel.org/stable/c/a90d339f1f66be4a946769b565668e2bd0686dfa" }, { "url": "https://git.kernel.org/stable/c/424bcb570cb320d1d15238cd4c933522b90f78fa" }, { "url": "https://git.kernel.org/stable/c/76d588dddc459fefa1da96e0a081a397c5c8e216" } ], "title": "powerpc/imc-pmu: Fix use of mutex in IRQs disabled section", "x_generator": { "engine": "bippy-1.2.0" } } } }