CVE-2025-37845
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.
How to fix
- linux linux_kernel6.12.24, 6.13.12, 6.14.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.12.21 ≤ v < 6.12.24, 6.13.9 ≤ v < 6.13.12, 6.14.1 ≤ v < 6.14.3, 6.14, 6.15 | 6.12.24, 6.13.12, 6.14.3 |
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