CVE-2026-89672 nfsd: gate nfs2 setacl by argp->mask

In the Linux kernel, the following vulnerability has been resolved: nfsd: gate nfs2 setacl by argp-mask The NFSACL v2 SETACL path shares the decoder convention used by its v3 sibling: nfsaclsvcdecodesetaclargs fills in argp-aclaccess only when NFSACL is set in the request mask and argp-acldefault...

CVE-2026-89672

CVE-2026-89672 affects the Linux kernel's NFS server daemon (nfsd) in the NFSACL v2 SETACL path. The function nfsacld_proc_setacl() passes both argp->acl_access and argp->acl_default pointers to set_posix_acl() unconditionally, even when the request mask does not include the corresponding b...

PT-2026-90388

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description An issue exists in the NFSACL v2 SETACL path where the nfsacld proc setacl function passes pointers to set posix acl unconditionally. Because nfsaclsvc decode setaclargs only populates...