CVEvulnerability
CVE-2026-93786
8.1 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-09-24
- Last modified
- 2026-10-03
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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.
References
- https://git.kernel.org/stable/c/0093909becbda22b62b39b654dbc607faed59cd0 git.kernel.org
- https://git.kernel.org/stable/c/4a19bb1c45667f5a5f6eff9cf6648e0f692d046f git.kernel.org
- https://git.kernel.org/stable/c/591acf171644de590cda245fd8595b473a1beb70 git.kernel.org
- https://git.kernel.org/stable/c/e148e567a9252643baa125cb65d7ae9c2c6cf68a git.kernel.org