CVEvulnerability
CVE-2026-89693
- Status
- Received
- Published
- 2026-09-11
- Last modified
- 2026-10-30
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
nfsd: check nfsd4_acl_to_attr() return value in nfsd4_create()
nfsd4_create() stores the return value of nfsd4_acl_to_attr() in
status, but the switch(create->cr_type) block unconditionally
overwrites it in every branch. ACL translation errors are silently
discarded, and the CREATE proceeds without the requested ACL.
Add an early exit check after nfsd4_acl_to_attr(), matching the
pattern already used in nfsd4_setattr().
[ cel: prefer NFS4ERR_BADTYPE over NFS4ERR_ATTRNOTSUPP ]
References
- https://git.kernel.org/stable/c/04b913ab96c2a874f41b5e5a19ac7120526723c2 git.kernel.org
- https://git.kernel.org/stable/c/154acf97ecd2c0bb00f6533f86d4bd2b934475d5 git.kernel.org
- https://git.kernel.org/stable/c/26877d3a09afb3838a053867a655ca30c46a1f81 git.kernel.org
- https://git.kernel.org/stable/c/2c7912732184773dbd371a411da87af1cc080b86 git.kernel.org
- https://git.kernel.org/stable/c/2d8a8ed4f9d8637ef0f18d47d19193e7b780e90e git.kernel.org
- https://git.kernel.org/stable/c/430ed49a16cf9ca249d0fb51490582090bc4848b git.kernel.org
- https://git.kernel.org/stable/c/73dfa989f6f0dedcae1f2650aab3401537044282 git.kernel.org
- https://git.kernel.org/stable/c/80cebb0e8a8d1e758f0d671f5e047279c5c3e528 git.kernel.org