https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 15:50:55 +0000 https://vulnerability.circl.lu/vuln/cve-2026-31532 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>can: raw: fix ro-&gt;uniq use-after-free in raw_rcv()</p> <p>raw_release() unregisters raw CAN receive filters via can_rx_unregister(), but receiver deletion is deferred with call_rcu(). This leaves a window where raw_rcv() may still be running in an RCU read-side critical section after raw_release() frees ro-&gt;uniq, leading to a use-after-free of the percpu uniq storage.</p> <p>Move free_percpu(ro-&gt;uniq) out of raw_release() and into a raw-specific socket destructor. can_rx_unregister() takes an extra reference to the socket and only drops it from the RCU callback, so freeing uniq from sk_destruct ensures the percpu area is not released until the relevant callbacks have drained.</p> <p>[mkl: applied manually]</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>can: raw: fix ro-&gt;uniq use-after-free in raw_rcv()</p> <p>raw_release() unregisters raw CAN receive filters via can_rx_unregister(), but receiver deletion is deferred with call_rcu(). This leaves a window where raw_rcv() may still be running in an RCU read-side critical section after raw_release() frees ro-&gt;uniq, leading to a use-after-free of the percpu uniq storage.</p> <p>Move free_percpu(ro-&gt;uniq) out of raw_release() and into a raw-specific socket destructor. can_rx_unregister() takes an extra reference to the socket and only drops it from the RCU callback, so freeing uniq from sk_destruct ensures the percpu area is not released until the relevant callbacks have drained.</p> <p>[mkl: applied manually]</p> https://vulnerability.circl.lu/vuln/cve-2026-31532