https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 05 Oct 2026 12:56:43 +0000 https://cve.radiocsirt.org/vuln/cve-2021-47293 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>net/sched: act_skbmod: Skip non-Ethernet packets</p> <p>Currently tcf_skbmod_act() assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices:</p> <p>$ ip link add dev vcan0 type vcan $ ip link set up vcan0 $ tc qdisc add dev vcan0 root handle 1: htb $ tc filter add dev vcan0 parent 1: protocol ip prio 10 \ matchall action skbmod swap mac</p> <p>Doing the above silently corrupts all the packets. Do not perform skbmod actions for non-Ethernet packets.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>net/sched: act_skbmod: Skip non-Ethernet packets</p> <p>Currently tcf_skbmod_act() assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices:</p> <p>$ ip link add dev vcan0 type vcan $ ip link set up vcan0 $ tc qdisc add dev vcan0 root handle 1: htb $ tc filter add dev vcan0 parent 1: protocol ip prio 10 \ matchall action skbmod swap mac</p> <p>Doing the above silently corrupts all the packets. Do not perform skbmod actions for non-Ethernet packets.</p> https://cve.radiocsirt.org/vuln/cve-2021-47293