CVE-2026-89688

CVE-2026-89688 is a Linux kernel vulnerability in the NFS server daemon (nfsd) , specifically in the error-handling path of nfs4_preprocess_seqid_op(). When nfsd4_cstate_assign_replay() returns -EAGAIN (replay owner being torn down), the code incorrectly called nfs4_put_stateowner() on a referenc...