https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 06 Oct 2026 01:18:21 +0000 https://cve.radiocsirt.org/vuln/cve-2025-21759 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ipv6: mcast: extend RCU protection in igmp6_send()</p> <p>igmp6_send() can be called without RTNL or RCU being held.</p> <p>Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF.</p> <p>Note that we no longer can use sock_alloc_send_skb() because ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.</p> <p>Instead use alloc_skb() and charge the net-&gt;ipv6.igmp_sk socket under RCU protection.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ipv6: mcast: extend RCU protection in igmp6_send()</p> <p>igmp6_send() can be called without RTNL or RCU being held.</p> <p>Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF.</p> <p>Note that we no longer can use sock_alloc_send_skb() because ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.</p> <p>Instead use alloc_skb() and charge the net-&gt;ipv6.igmp_sk socket under RCU protection.</p> https://cve.radiocsirt.org/vuln/cve-2025-21759