🛡️ CVE-2025-37845 — kernel

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

tracing: fprobe events: Fix possible UAF on modules

In the Linux kernel, the following vulnerability has been resolved:

tracing: fprobe events: Fix possible UAF on modules

Commit ac91052f0ae5 ("tracing: tprobe-events: Fix leakage of module

refcount") moved try_module_get() from __find_tracepoint_module_cb()

to find_tracepoint() caller, but that introduced a possible UAF

because the module can be unloaded before try_module_get(). In this

case, the module object should be freed too. Thus, try_module_get()

does not only fail but may access to the freed object.

To avoid that, try_module_get() in __find_tracepoint_module_cb()

again.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2025-37845 is recorded against 2 packages.

  • kernel (from 6.14.0 up to 6.14.3)
  • linux-kernel

Timeline and source

Published on 9 May 2025 and last revised on 6 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2025-37845 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-05-09
Updated 2026-08-12
Modified 2026-08-06

Affected Packages

Software From version Fixed in
kernel 6.14.0 6.14.3
linux-kernel — —

Similar Threats

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