CVE-2026-89693

Not scored yetLast modified Oct 30, 2026

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

No CVSS score has been published yet.

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
LinuxLinux>= c5409ce523af40d5c3019717bc5b4f72038d48be, < 154acf97ecd2c0bb00f6533f86d4bd2b934475d5; >= d52acd23a327cada5fb597591267cfc09f08bb1d, < 73dfa989f6f0dedcae1f2650aab3401537044282; >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 04b913ab96c2a874f41b5e5a19ac7120526723c2; >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 2d8a8ed4f9d8637ef0f18d47d19193e7b780e90e; >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 26877d3a09afb3838a053867a655ca30c46a1f81; >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 430ed49a16cf9ca249d0fb51490582090bc4848b; >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 80cebb0e8a8d1e758f0d671f5e047279c5c3e528; >= c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b, < 2c7912732184773dbd371a411da87af1cc080b86; >= 5.10.220, < 5.10.273; >= 5.15.154, < 5.15.224
LinuxLinux6.0

References

Timeline

Published
Sep 11, 2026
Last modified
Oct 30, 2026
NVD status
Received

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CVE-2026-89693: Unscored | Vulnix