https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 07 Oct 2026 13:11:22 +0000 https://cve.radiocsirt.org/vuln/cve-2026-89658 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>NFSD: Prevent client use-after-free during NFSv4.0 revoked-state cleanup</p> <p>nfs40_clean_admin_revoked() takes a stateid reference under clp-&gt;cl_lock, drops nn-&gt;client_lock, and calls nfsd4_drop_revoked_stid(), which dereferences the stateid&#39;s client through s-&gt;sc_client-&gt;cl_lock. The stateid reference does not pin the client, so a teardown racing the dropped lock can free the client while nfsd4_drop_revoked_stid() is still using it.</p> <p>This cleanup runs from the laundromat, so a periodic sweep can race force_expire_client() driven by a write to the clients/&lt;id&gt;/ctl file.</p> <p>Skip a client that is already expiring and otherwise pin it with cl_rpc_users under client_lock before dropping the lock, matching nfsd4_revoke_states().</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>NFSD: Prevent client use-after-free during NFSv4.0 revoked-state cleanup</p> <p>nfs40_clean_admin_revoked() takes a stateid reference under clp-&gt;cl_lock, drops nn-&gt;client_lock, and calls nfsd4_drop_revoked_stid(), which dereferences the stateid&#39;s client through s-&gt;sc_client-&gt;cl_lock. The stateid reference does not pin the client, so a teardown racing the dropped lock can free the client while nfsd4_drop_revoked_stid() is still using it.</p> <p>This cleanup runs from the laundromat, so a periodic sweep can race force_expire_client() driven by a write to the clients/&lt;id&gt;/ctl file.</p> <p>Skip a client that is already expiring and otherwise pin it with cl_rpc_users under client_lock before dropping the lock, matching nfsd4_revoke_states().</p> https://cve.radiocsirt.org/vuln/cve-2026-89658