CVE-2022-50764

A flaw was discovered in the Linux kernel’s IPv6 SIT tunnel implementation, where multiple CPUs may concurrently update the dev->stats.tx_error field without appropriate synchronization. This is caused by the SIT tunnel’s transmit function (ndo_start_xmit()) not being protected by a spinlock due to the NETIF_F_LLTX flag, allowing data races on statistics updates, leading to inconsistent statistics and potentially unpredictable kernel behavior

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.