CVE-2025-37845

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux71c9cf87776eaa556fc0a0a060df94200e1f521c < 868df4eb784c3ccc7e4340a9ea993cbbedca167eaffected
LinuxLinux9db2b8cf4ea07b579db588e0353d5680f5d1f071 < a27d2de2472b1cc7d582ab405d1d5832a80481deaffected
LinuxLinuxac91052f0ae5be9e46211ba92cc31c0e3b0a933a < 626f01f4d26e8cf92e69c1df53036153c8e98a20affected
LinuxLinuxac91052f0ae5be9e46211ba92cc31c0e3b0a933a < dd941507a9486252d6fcf11814387666792020f3affected
LinuxLinux6.12.21 < 6.12.24affected
LinuxLinux6.13.9 < 6.13.12affected
LinuxLinux6.14affected
LinuxLinux0 < 6.14unaffected
LinuxLinux6.12.24 <= 6.12.*unaffected
LinuxLinux6.13.12 <= 6.13.*unaffected
LinuxLinux6.14.3 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

References