https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 28 Sep 2026 19:36:09 +0000 https://vulnerability.circl.lu/vuln/cve-2025-71182 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>can: j1939: make j1939_session_activate() fail if device is no longer registered</p> <p>syzbot is still reporting</p> <p>unregister_netdevice: waiting for vcan0 to become free. Usage count = 2</p> <p>even after commit 93a27b5891b8 (&#34;can: j1939: add missing calls in NETDEV_UNREGISTER notification handler&#34;) was added. A debug printk() patch found that j1939_session_activate() can succeed even after j1939_cancel_active_session() from j1939_netdev_notify(NETDEV_UNREGISTER) has completed.</p> <p>Since j1939_cancel_active_session() is processed with the session list lock held, checking ndev-&gt;reg_state in j1939_session_activate() with the session list lock held can reliably close the race window.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>can: j1939: make j1939_session_activate() fail if device is no longer registered</p> <p>syzbot is still reporting</p> <p>unregister_netdevice: waiting for vcan0 to become free. Usage count = 2</p> <p>even after commit 93a27b5891b8 (&#34;can: j1939: add missing calls in NETDEV_UNREGISTER notification handler&#34;) was added. A debug printk() patch found that j1939_session_activate() can succeed even after j1939_cancel_active_session() from j1939_netdev_notify(NETDEV_UNREGISTER) has completed.</p> <p>Since j1939_cancel_active_session() is processed with the session list lock held, checking ndev-&gt;reg_state in j1939_session_activate() with the session list lock held can reliably close the race window.</p> https://vulnerability.circl.lu/vuln/cve-2025-71182