CVE-2026-89693
Last modified
CVE-2026-89693 is a vulnerability of currently unknown severity. 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 ]. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
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 ]
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 26877d3a09afb3838a053867a655ca30c46a1f81; >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 430ed49a16cf9ca249d0fb51490582090bc4848b; >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 80cebb0e8a8d1e758f0d671f5e047279c5c3e528; >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 2c7912732184773dbd371a411da87af1cc080b86; c5409ce523af40d5c3019717bc5b4f72038d48be; d52acd23a327cada5fb597591267cfc09f08bb1d; >= 5.10.220, < 5.11; >= 5.15.154, < 5.16 |
| Linux | Linux | 6.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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