CVE-2022-48872
Linux Linux, linux kernel 취약점
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free race condition for maps It is possible that in between calling fastrpc_map_get() until map->fl->lock is taken in fastrpc_free_map(), another thread can call fastrpc_map_lookup() and get a reference to a map that is about to be deleted. Rewrite fastrpc_map_get() to only increase the reference count of a map if it's non-zero. Propagate this to callers so they can know if a map is about to be deleted. Fixes this warning: refcount_t: addition on 0; use-after-free. WARNING: CPU: 5 PID: 10100 at...
- 대응 우선순위
- 점검
- CVSS
- 7
- EPSS
- - 백분위 -
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2024.08.21