CVE-2026-64138
ksmbd: validate SID in parent security descriptor during ACL inheritance
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate SID in parent security descriptor during ACL inheritance Introduce smb_validate_ntsd_sid() helper to safely validate Owner SID and Group SID inside the NT Security Descriptor (smb_ntsd) retrieved from the parent directory.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 19, 2026 |
| Last Updated | Jul 20, 2026 |
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Affected Versions
Linux / Linux
e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < f0e5c9c663badc9982e6941322eef1cb17de0f11 e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 18d8db24b0a5b7be4829238dd4022236df02d421 e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 1c9d0646a9959752f11ca1080dc1ff26bd1756cb e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 69f030cf95488ae1186c72ac8c66fd279664ea7f
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/f0e5c9c663badc9982e6941322eef1cb17de0f11 git.kernel.org: https://git.kernel.org/stable/c/18d8db24b0a5b7be4829238dd4022236df02d421 git.kernel.org: https://git.kernel.org/stable/c/1c9d0646a9959752f11ca1080dc1ff26bd1756cb git.kernel.org: https://git.kernel.org/stable/c/69f030cf95488ae1186c72ac8c66fd279664ea7f