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CVE-2023-53656

drivers/perf: hisi: Don't migrate perf to the CPU going to teardown

MEDIUM
5.5
CVSS Score
Published: October 7, 2025 at 03:21 PM UTC
Updated: June 17, 2026 at 06:45 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi: Don't migrate perf to the CPU going to teardown The driver needs to migrate the perf context if the current using CPU going to teardown. By the time calling the cpuhp::teardown() callback the cpu_online_mask() hasn't updated yet and still includes the CPU going to teardown. In current driver's implementation we may migrate the context to the teardown CPU and leads to the below calltrace: ... [ 368.104662][ T932] task:cpuhp/0 state:D stack: 0 pid: 15 ppid: 2 flags:0x00000008 [ 368.113699][ T932] Call trace: [ 368.116834][ T932] __switch_to+0x7c/0xbc [ 368.120924][ T932] __schedule+0x338/0x6f0 [ 368.125098][ T932] schedule+0x50/0xe0 [ 368.128926][ T932] schedule_preempt_disabled+0x18/0x24 [ 368.134229][ T932] __mutex_lock.constprop.0+0x1d4/0x5dc [ 368.139617][ T932] __mutex_lock_slowpath+0x1c/0x30 [ 368.144573][ T932] mutex_lock+0x50/0x60 [ 368.148579][ T932] perf_pmu_migrate_context+0x84/0x2b0 [ 368.153884][ T932] hisi_pcie_pmu_offline_cpu+0x90/0xe0 [hisi_pcie_pmu] [ 368.160579][ T932] cpuhp_invoke_callback+0x2a0/0x650 [ 368.165707][ T932] cpuhp_thread_fun+0xe4/0x190 [ 368.170316][ T932] smpboot_thread_fn+0x15c/0x1a0 [ 368.175099][ T932] kthread+0x108/0x13c [ 368.179012][ T932] ret_from_fork+0x10/0x18 ... Use function cpumask_any_but() to find one correct active cpu to fixes this issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.17 ≤ v < 6.1.395.17 ≤ v < 6.3.135.17 ≤ v < 6.4.45.17 ≤ v < 6.56.2 ≤ v < 6.3.136.4 ≤ v < 6.4.45.178404b0fbc7fbd42e5c5d28cdedd450e70829c77a
Vendor states this is fixed in 7a6a9f1c5a0a875a421db798d4b2ee022dc1ee1a (fixed)
Vendor states this is fixed in b64569897d86b611befbb895d815280fea94e1ed (fixed)
Vendor states this is fixed in be9c8c9c84b6d25a7b7d39954030aba6f759feb6 (fixed)
Vendor states this is fixed in f564e543a43d0f1cabac791672c8a6fc78ce12d0 (fixed)
Vendor states this is fixed in 5.17 (unaffected)
Vendor states this is fixed in 6.1.39 (unaffected)
Vendor states this is fixed in 6.3.13 (unaffected)
Vendor states this is fixed in 6.4.4 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

References (4)

Patch
Source: cverecord
https://git.kernel.org/stable/c/be9c8c9c84b6d25a7b7d39954030aba6f759feb6
Patch
Source: cverecord
https://git.kernel.org/stable/c/f564e543a43d0f1cabac791672c8a6fc78ce12d0
Patch
Source: cverecord
https://git.kernel.org/stable/c/b64569897d86b611befbb895d815280fea94e1ed
Patch
Source: cverecord
https://git.kernel.org/stable/c/7a6a9f1c5a0a875a421db798d4b2ee022dc1ee1a

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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