CVE-2023-53656

MEDIUM EPSS 3.9%
Published Oct 7, 20258mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 7, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥5.17  –  <6.1.39
linuxlinux_kernel*≥6.2  –  <6.3.13
linuxlinux_kernel*≥6.4  –  <6.4.4

References 4

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

Remediation

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