Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: preserve VFS inherited POSIX ACL mask The VFS initializes a child's POSIX ACL from the parent's default ACL and the requested creation mode. Do not mutate the parent ACL or overwrite the child's VFS-computed access and default ACLs afterwards. This preserves restrictive ACL_MASK entries and prevents SMB object creation from widening effective permissions.
References5
- git.kernel.org/stable/c/0093909becbda22b62b39b654dbc607faed59cd0
- git.kernel.org/stable/c/4a19bb1c45667f5a5f6eff9cf6648e0f692d046f
- git.kernel.org/stable/c/591acf171644de590cda245fd8595b473a1beb70
- git.kernel.org/stable/c/8493da704275ca5ab67fb88c0ae7b71576e91951
- git.kernel.org/stable/c/e148e567a9252643baa125cb65d7ae9c2c6cf68a
Metrics
- CVSS 3.1
-
8.1
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - EPSS — exploit probability
- 0% percentile: 28 · as of 9 November 2026
Could this be exploited in your environment?
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