CVE-2023-53031
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53031
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53031.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-53031
- Downstream
- Related
- Published
- 2025-03-27T16:43:59Z
- Modified
- 2025-10-16T00:30:31.921350Z
- Summary
- powerpc/imc-pmu: Fix use of mutex in IRQs disabled section
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
powerpc/imc-pmu: Fix use of mutex in IRQs disabled section
Current imc-pmu code triggers a WARNING with CONFIGDEBUGATOMICSLEEP and CONFIGPROVELOCKING enabled, while running a threadimc event.
Command to trigger the warning: # perf stat -e threadimc/CPMCSFROML4MEMX_DPTEG/ sleep 5
Performance counter stats for 'sleep 5':
0 thread_imc/CPM_CS_FROM_L4_MEM_X_DPTEG/ 5.002117947 seconds time elapsed 0.000131000 seconds user 0.001063000 seconds sysBelow is snippet of the warning in dmesg:
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580 inatomic(): 1, irqsdisabled(): 1, nonblock: 0, pid: 2869, name: perf-exec preemptcount: 2, expected: 0 4 locks held by perf-exec/2869: #0: c00000004325c540 (&sig->credguardmutex){+.+.}-{3:3}, at: bprmexecve+0x64/0xa90 #1: c00000004325c5d8 (&sig->execupdatelock){++++}-{3:3}, at: beginnewexec+0x460/0xef0 #2: c0000003fa99d4e0 (&cpuctxlock){-...}-{2:2}, at: perfeventexec+0x290/0x510 #3: c000000017ab8418 (&ctx->lock){....}-{2:2}, at: perfeventexec+0x29c/0x510 irq event stamp: 4806 hardirqs last enabled at (4805): [<c000000000f65b94>] rawspinunlockirqrestore+0x94/0xd0 hardirqs last disabled at (4806): [<c0000000003fae44>] perfeventexec+0x394/0x510 softirqs last enabled at (0): [<c00000000013c404>] copyprocess+0xc34/0x1ff0 softirqs last disabled at (0): [<0000000000000000>] 0x0 CPU: 36 PID: 2869 Comm: perf-exec Not tainted 6.2.0-rc2-00011-g1247637727f2 #61 Hardware name: 8375-42A POWER9 0x4e1202 opal:v7.0-16-g9b85f7d961 PowerNV Call Trace: dumpstacklvl+0x98/0xe0 (unreliable) _mightresched+0x2f8/0x310 _mutexlock+0x6c/0x13f0 threadimceventadd+0xf4/0x1b0 eventschedin+0xe0/0x210 mergeschedin+0x1f0/0x600 visitgroupsmerge.isra.92.constprop.166+0x2bc/0x6c0 ctxflexibleschedin+0xcc/0x140 ctxschedin+0x20c/0x2a0 ctxresched+0x104/0x1c0 perfeventexec+0x340/0x510 beginnewexec+0x730/0xef0 loadelfbinary+0x3f8/0x1e10 ... do not call blocking ops when !TASKRUNNING; state=2001 set at [<00000000fd63e7cf>] donanosleep+0x60/0x1a0 WARNING: CPU: 36 PID: 2869 at kernel/sched/core.c:9912 _mightsleep+0x9c/0xb0 CPU: 36 PID: 2869 Comm: sleep Tainted: G W 6.2.0-rc2-00011-g1247637727f2 #61 Hardware name: 8375-42A POWER9 0x4e1202 opal:v7.0-16-g9b85f7d961 PowerNV NIP: c000000000194a1c LR: c000000000194a18 CTR: c000000000a78670 REGS: c00000004d2134e0 TRAP: 0700 Tainted: G W (6.2.0-rc2-00011-g1247637727f2) MSR: 9000000000021033 <SF,HV,ME,IR,DR,RI,LE> CR: 48002824 XER: 00000000 CFAR: c00000000013fb64 IRQMASK: 1
The above warning triggered because the current imc-pmu code uses mutex lock in interrupt disabled sections. The function mutexlock() internally calls _might_resched(), which will check if IRQs are disabled and in case IRQs are disabled, it will trigger the warning.
Fix the issue by changing the mutex lock to spinlock.
[mpe: Fix comments, trim oops in change log, add reported-by tags]
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/424bcb570cb320d1d15238cd4c933522b90f78fa
- https://git.kernel.org/stable/c/76d588dddc459fefa1da96e0a081a397c5c8e216
- https://git.kernel.org/stable/c/8cbeb60320ac45a8240b561c8ef466b86c34dedc
- https://git.kernel.org/stable/c/a90d339f1f66be4a946769b565668e2bd0686dfa
- https://git.kernel.org/stable/c/d0c6d2a31026102d4738b47a610bed4401b9834f
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8f95faaac56c18b32d0e23ace55417a440abdb7eFixedd0c6d2a31026102d4738b47a610bed4401b9834f
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8f95faaac56c18b32d0e23ace55417a440abdb7eFixed8cbeb60320ac45a8240b561c8ef466b86c34dedc
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8f95faaac56c18b32d0e23ace55417a440abdb7eFixeda90d339f1f66be4a946769b565668e2bd0686dfa
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8f95faaac56c18b32d0e23ace55417a440abdb7eFixed424bcb570cb320d1d15238cd4c933522b90f78fa
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8f95faaac56c18b32d0e23ace55417a440abdb7eFixed76d588dddc459fefa1da96e0a081a397c5c8e216