CVE-2025-37845

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-37845
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.
CVSS

No CVSS.

References
Link Resource
https://git.kernel.org/stable/c/626f01f4d26e8cf92e69c1df53036153c8e98a20
https://git.kernel.org/stable/c/868df4eb784c3ccc7e4340a9ea993cbbedca167e
https://git.kernel.org/stable/c/a27d2de2472b1cc7d582ab405d1d5832a80481de
https://git.kernel.org/stable/c/dd941507a9486252d6fcf11814387666792020f3
Configurations

No configuration.

History

12 May 2025, 17:32

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing: fprobe events: Fix possible UAF on modules. La confirmación ac91052f0ae5 ("tracing: tprobe-events: Fix leakage of module refcount") trasladó try_module_get() de __find_tracepoint_module_cb() al llamador de find_tracepoint(), pero esto introdujo un posible UAF porque el módulo puede descargarse antes que try_module_get(). En este caso, el objeto del módulo también debería liberarse. Por lo tanto, try_module_get() no solo falla, sino que puede acceder al objeto liberado. Para evitarlo, vuelva a intentar try_module_get() en __find_tracepoint_module_cb().

09 May 2025, 07:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-09 07:16

Updated : 2025-05-12 17:32

NVD link : CVE-2025-37845

Mitre link : CVE-2025-37845

CVE.ORG link : CVE-2025-37845

JSON object : View

Products Affected

No product.

CWE

No CWE.