CVE-2026-89693

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

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

Published

2026-09-11

Modified

2026-10-21

Record from

the NVD, synced 2026-10-22

References

• https://git.kernel.org/stable/c/26877d3a09afb3838a053867a655ca30c46a1f81
• https://git.kernel.org/stable/c/2c7912732184773dbd371a411da87af1cc080b86
• https://git.kernel.org/stable/c/2d8a8ed4f9d8637ef0f18d47d19193e7b780e90e
• https://git.kernel.org/stable/c/430ed49a16cf9ca249d0fb51490582090bc4848b
• https://git.kernel.org/stable/c/80cebb0e8a8d1e758f0d671f5e047279c5c3e528

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