{"api_version":"1","generated_at":"2026-11-13T23:24:29+00:00","cve":"CVE-2023-53031","urls":{"html":"https://cve.report/CVE-2023-53031","api":"https://cve.report/api/cve/CVE-2023-53031.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-53031","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-53031"},"summary":{"title":"powerpc/imc-pmu: Fix use of mutex in IRQs disabled section","description":"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): [<c000000000f65b94>] _raw_spin_unlock_irqrestore+0x94/0xd0\n  hardirqs last disabled at (4806): [<c0000000003fae44>] perf_event_exec+0x394/0x510\n  softirqs last  enabled at (0): [<c00000000013c404>] 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 <SF,HV,ME,IR,DR,RI,LE>  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]","state":"PUBLISHED","assigner":"Linux","published_at":"2025-03-27 17:15:52","updated_at":"2026-11-05 21:17:07"},"problem_types":["CWE-667"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/76d588dddc459fefa1da96e0a081a397c5c8e216","name":"https://git.kernel.org/stable/c/76d588dddc459fefa1da96e0a081a397c5c8e216","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a90d339f1f66be4a946769b565668e2bd0686dfa","name":"https://git.kernel.org/stable/c/a90d339f1f66be4a946769b565668e2bd0686dfa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/424bcb570cb320d1d15238cd4c933522b90f78fa","name":"https://git.kernel.org/stable/c/424bcb570cb320d1d15238cd4c933522b90f78fa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d0c6d2a31026102d4738b47a610bed4401b9834f","name":"https://git.kernel.org/stable/c/d0c6d2a31026102d4738b47a610bed4401b9834f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8cbeb60320ac45a8240b561c8ef466b86c34dedc","name":"https://git.kernel.org/stable/c/8cbeb60320ac45a8240b561c8ef466b86c34dedc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-53031","name":"CVE 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Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/powerpc/include/asm/imc-pmu.h","arch/powerpc/perf/imc-pmu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d0c6d2a31026102d4738b47a610bed4401b9834f","status":"affected","version":"8f95faaac56c18b32d0e23ace55417a440abdb7e","versionType":"git"},{"lessThan":"8cbeb60320ac45a8240b561c8ef466b86c34dedc","status":"affected","version":"8f95faaac56c18b32d0e23ace55417a440abdb7e","versionType":"git"},{"lessThan":"a90d339f1f66be4a946769b565668e2bd0686dfa","status":"affected","version":"8f95faaac56c18b32d0e23ace55417a440abdb7e","versionType":"git"},{"lessThan":"424bcb570cb320d1d15238cd4c933522b90f78fa","status":"affected","version":"8f95faaac56c18b32d0e23ace55417a440abdb7e","versionType":"git"},{"lessThan":"76d588dddc459fefa1da96e0a081a397c5c8e216","status":"affected","version":"8f95faaac56c18b32d0e23ace55417a440abdb7e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["arch/powerpc/include/asm/imc-pmu.h","arch/powerpc/perf/imc-pmu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.14"},{"lessThan":"4.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.229","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.164","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.89","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.4.229","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.164","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.89","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.7","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.2","versionStartIncluding":"4.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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): [<c000000000f65b94>] _raw_spin_unlock_irqrestore+0x94/0xd0\n  hardirqs last disabled at (4806): [<c0000000003fae44>] perf_event_exec+0x394/0x510\n  softirqs last  enabled at (0): [<c00000000013c404>] 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 <SF,HV,ME,IR,DR,RI,LE>  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]"}],"providerMetadata":{"dateUpdated":"2026-05-11T19:37:13.647Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2023-53031","datePublished":"2025-03-27T16:43:59.607Z","dateReserved":"2025-03-27T16:40:15.757Z","dateUpdated":"2026-11-05T20:20:54.820Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-03-27 17:15:52","lastModifiedDate":"2026-11-05 21:17:07","problem_types":["CWE-667"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-05T20:14:47.564511Z","id":"CVE-2023-53031","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.4.229","matchCriteriaId":"10D8851C-38BC-4353-B991-31BC7BBD68AF"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.164","matchCriteriaId":"CA742E66-32D2-459E-AB19-171C4DB3B1F4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.89","matchCriteriaId":"E706841F-E788-4316-9B05-DA8EB60CE6B3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.7","matchCriteriaId":"9275C81F-AE96-4CDB-AD20-7DBD36E5D909"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*","matchCriteriaId":"FF501633-2F44-4913-A8EE-B021929F49F6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*","matchCriteriaId":"2BDA597B-CAC1-4DF0-86F0-42E142C654E9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*","matchCriteriaId":"725C78C9-12CE-406F-ABE8-0813A01D66E8"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"53031","Ordinal":"1","Title":"powerpc/imc-pmu: Fix use of mutex in IRQs disabled section","CVE":"CVE-2023-53031","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"53031","Ordinal":"1","NoteData":"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): [<c000000000f65b94>] _raw_spin_unlock_irqrestore+0x94/0xd0\n  hardirqs last disabled at (4806): [<c0000000003fae44>] perf_event_exec+0x394/0x510\n  softirqs last  enabled at (0): [<c00000000013c404>] 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 <SF,HV,ME,IR,DR,RI,LE>  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]","Type":"Description","Title":"powerpc/imc-pmu: Fix use of mutex in IRQs disabled section"}]}}}