High severity7.1NVD Advisory· Published Apr 1, 2025· Updated Jun 17, 2026
CVE-2025-21946
CVE-2025-21946
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix out-of-bounds in parse_sec_desc()
If osidoffset, gsidoffset and dacloffset could be greater than smb_ntsd struct size. If it is smaller, It could cause slab-out-of-bounds. And when validating sid, It need to check it included subauth array size.
Affected products
3Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/159d059cbcb0e6d0e7a7b34af3862ba09a6b22d1nvdPatch
- git.kernel.org/stable/c/6a9831180d0b23b5c97e2bd841aefc8f82900172nvdPatch
- git.kernel.org/stable/c/c1569dbbe2d43041be9f3fef7ca08bec3b66ad1bnvdPatch
- git.kernel.org/stable/c/d6e13e19063db24f94b690159d0633aaf72a0f03nvdPatch
- git.kernel.org/stable/c/f4ee19528664777af8b842f8f001be98345aa973nvd
News mentions
0No linked articles in our index yet.