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CVE-2026-89693

Last refreshed2026-10-03

Status: UPDATED  |  Advisory ID: CVE-2026-89693

Key Details

CVECVE-2026-89693
Affected productsLinux Linux

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux
SubsystemsGeneral OT
SectorsMultiple

What to Know

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 ] (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-89693
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-89693