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
linux: linux kernel
References5
- git.kernel.org/stable/c/159d059cbcb0e6d0e7a7b34af3862ba09a6b22d1 Patch
- git.kernel.org/stable/c/6a9831180d0b23b5c97e2bd841aefc8f82900172 Patch
- git.kernel.org/stable/c/c1569dbbe2d43041be9f3fef7ca08bec3b66ad1b Patch
- git.kernel.org/stable/c/d6e13e19063db24f94b690159d0633aaf72a0f03 Patch
- git.kernel.org/stable/c/f4ee19528664777af8b842f8f001be98345aa973
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H - EPSS — exploit probability
- 0% percentile: 43 · as of 7 November 2026
- CWE
- CWE-125
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.