CVE-2023-53031: 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…

PriorityP420medium5.5CVSS 3.1

AVLACLPRLUINSUCNINAH

EPSS

0.14%

3.9th percentile

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 CONFIG_DEBUG_ATOMIC_SLEEP
and CONFIG_PROVE_LOCKING enabled, while running a thread_imc event.

Command to trigger the warning:
# perf stat -e thread_imc/CPM_CS_FROM_L4_MEM_X_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 sys

Below is snippet of the warning in dmesg:

BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 2869, name: perf-exec
preempt_count: 2, expected: 0
4 locks held by perf-exec/2869:
#0: c00000004325c540 (&sig->cred_guard_mutex){+.+.}-{3:3}, at: bprm_execve+0x64/0xa90
#1: c00000004325c5d8 (&sig->exec_update_lock){++++}-{3:3}, at: begin_new_exec+0x460/0xef0
#2: c0000003fa99d4e0 (&cpuctx_lock){-...}-{2:2}, at: perf_event_exec+0x290/0x510
#3: c000000017ab8418 (&ctx->lock){....}-{2:2}, at: perf_event_exec+0x29c/0x510
irq event stamp: 4806
hardirqs last enabled at (4805): [] _raw_spin_unlock_irqrestore+0x94/0xd0
hardirqs last disabled at (4806): [] perf_event_exec+0x394/0x510
softirqs last enabled at (0): [] copy_process+0xc34/0x1ff0
softirqs last disabled at (0): [] 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:
dump_stack_lvl+0x98/0xe0 (unreliable)
__might_resched+0x2f8/0x310
__mutex_lock+0x6c/0x13f0
thread_imc_event_add+0xf4/0x1b0
event_sched_in+0xe0/0x210
merge_sched_in+0x1f0/0x600
visit_groups_merge.isra.92.constprop.166+0x2bc/0x6c0
ctx_flexible_sched_in+0xcc/0x140
ctx_sched_in+0x20c/0x2a0
ctx_resched+0x104/0x1c0
perf_event_exec+0x340/0x510
begin_new_exec+0x730/0xef0
load_elf_binary+0x3f8/0x1e10
...
do not call blocking ops when !TASK_RUNNING; st

Affected

16 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 6.1.7-1 (bookworm)	linux 6.1.7-1 (bookworm)
linux	linux	—	—
linux	linux	>= 8f95faaac56c18b32d0e23ace55417a440abdb7e < d0c6d2a31026102d4738b47a610bed4401b9834f	d0c6d2a31026102d4738b47a610bed4401b9834f
linux	linux	>= 8f95faaac56c18b32d0e23ace55417a440abdb7e < 8cbeb60320ac45a8240b561c8ef466b86c34dedc	8cbeb60320ac45a8240b561c8ef466b86c34dedc
linux	linux	>= 8f95faaac56c18b32d0e23ace55417a440abdb7e < a90d339f1f66be4a946769b565668e2bd0686dfa	a90d339f1f66be4a946769b565668e2bd0686dfa
linux	linux	>= 8f95faaac56c18b32d0e23ace55417a440abdb7e < 424bcb570cb320d1d15238cd4c933522b90f78fa	424bcb570cb320d1d15238cd4c933522b90f78fa
linux	linux	>= 8f95faaac56c18b32d0e23ace55417a440abdb7e < 76d588dddc459fefa1da96e0a081a397c5c8e216	76d588dddc459fefa1da96e0a081a397c5c8e216
linux	linux_kernel	—	—
linux	linux_kernel	>= 0 < 5.10.178-1	5.10.178-1
linux	linux_kernel	>= 0 < 6.1.7-1	6.1.7-1
linux	linux_kernel	>= 0 < 6.1.7-1	6.1.7-1
linux	linux_kernel	>= 0 < 6.1.7-1	6.1.7-1
linux	linux_kernel	>= 4.14 < 5.4.229	5.4.229
linux	linux_kernel	>= 5.11 < 5.15.89	5.15.89
linux	linux_kernel	>= 5.16 < 6.1.7	6.1.7
linux	linux_kernel	>= 5.5 < 5.10.164	5.10.164

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

osv5.5MEDIUM

vendor_debian5.5MEDIUM

vendor_redhat5.5MEDIUM

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