CVE-2025-21946
ksmbd: fix out-of-bounds in parse_sec_desc()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 1, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
0626e6641f6b467447c81dd7678a69c66f7746cf < f4ee19528664777af8b842f8f001be98345aa973 0626e6641f6b467447c81dd7678a69c66f7746cf < c1569dbbe2d43041be9f3fef7ca08bec3b66ad1b 0626e6641f6b467447c81dd7678a69c66f7746cf < 159d059cbcb0e6d0e7a7b34af3862ba09a6b22d1 0626e6641f6b467447c81dd7678a69c66f7746cf < 6a9831180d0b23b5c97e2bd841aefc8f82900172 0626e6641f6b467447c81dd7678a69c66f7746cf < d6e13e19063db24f94b690159d0633aaf72a0f03
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/f4ee19528664777af8b842f8f001be98345aa973 git.kernel.org: https://git.kernel.org/stable/c/c1569dbbe2d43041be9f3fef7ca08bec3b66ad1b git.kernel.org: https://git.kernel.org/stable/c/159d059cbcb0e6d0e7a7b34af3862ba09a6b22d1 git.kernel.org: https://git.kernel.org/stable/c/6a9831180d0b23b5c97e2bd841aefc8f82900172 git.kernel.org: https://git.kernel.org/stable/c/d6e13e19063db24f94b690159d0633aaf72a0f03