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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-38424 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: perf: Fix sample vs do_exit() Baisheng Gao reported an ARM64 crash, which Mark decoded as being a synchronous external abort -- most likely due to trying to access MMIO in bad ways. The crash further shows perf trying to do a user stack sample while in exit_mmap()'s tlb_finish_mmu() -- i.e. while tearing down the address space it is trying to access. It turns out that we stop perf after we tear down the userspace mm; a receipie for disaster, since perf likes to access userspace for various reasons. Flip this order by moving up where we stop perf in do_exit(). Additionally, harden PERF_SAMPLE_CALLCHAIN and PERF_SAMPLE_STACK_USER to abort when the current task does not have an mm (exit_mm() makes sure to set current->mm = NULL; before commencing with the actual teardown). Such that CPU wide events don't trip on this same problem.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/2ee6044a693735396bb47eeaba1ac3ae26c1c99b kernel.org
https://git.kernel.org/stable/c/456019adaa2f5366b89c868dea9b483179bece54 kernel.org
https://git.kernel.org/stable/c/4f6fc782128355931527cefe3eb45338abd8ab39 kernel.org
https://git.kernel.org/stable/c/507c9a595bad3abd107c6a8857d7fd125d89f386 kernel.org
https://git.kernel.org/stable/c/7311970d07c4606362081250da95f2c7901fc0db kernel.org
https://git.kernel.org/stable/c/7b8f3c72175c6a63a95cf2e219f8b78e2baad34e kernel.org
https://git.kernel.org/stable/c/975ffddfa2e19823c719459d2364fcaa17673964 kernel.org
https://git.kernel.org/stable/c/a9f6aab7910a0ef2895797f15c947f6d1053160f kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-38424
NVD Published Date:
07/25/2025
NVD Last Modified:
07/25/2025
Source:
kernel.org