CVE-2022-50764

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ipv6/sit: use DEV_STATS_INC() to avoid data-races<br /> <br /> syzbot/KCSAN reported that multiple cpus are updating dev-&gt;stats.tx_error<br /> concurrently.<br /> <br /> This is because sit tunnels are NETIF_F_LLTX, meaning their ndo_start_xmit()<br /> is not protected by a spinlock.<br /> <br /> While original KCSAN report was about tx path, rx path has the same issue.