CVE-2026-90036: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during blocked-lock reaping A bare lock owner -- its only remaining reference a blocked lock on nn-blockedlockslru -- holds a raw pointer to its nfs4client but no reference keeping the client...

DEBIAN-CVE-2026-89660

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during admin state revocation A stateid holds only a bare pointer to its nfs4client; a stateid reference does not pin it. The client survives only because destroyclient drains its stateids befo...

DEBIAN-CVE-2026-89659

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during delegation revoke A delegation stateid holds only a bare pointer to its owning nfs4client and does not keep it alive. The client survives its stateids only because destroyclient drains...

CVE-2026-89659

A use-after-free in the Linux kernel's NFSD (NFSv4 daemon) occurs during delegation revocation. The nfs4_laundromat() function unhashes an expired delegation from cl_delegations and drops the lock, creating a window where client_has_state() reports no remaining state, allowing free_client() to ru...

CVE-2025-21795

In the Linux kernel, the following vulnerability has been resolved: NFSD: fix hang in nfsd4shutdowncallback If nfs4client is in courtesy state then there is no point to send the callback. This causes nfsd4shutdowncallback to hang since clcbinflight is not 0. This hang lasts about 15 minutes until...

CVE-2025-21795: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: NFSD: fix hang in nfsd4shutdowncallback If nfs4client is in courtesy state then there is no point to send the callback. This causes nfsd4shutdowncallback to hang since clcbinflight is not 0. This hang lasts about 15 minutes until...