CVE-2024-26707

A vulnerability in the Linux kernel affects the High-availability Seamless Redundancy (HSR) protocol. The issue was identified when a warning (WARN_ONCE()) was triggered due to failed resource allocation for skb in the hsr_init_skb() function. The WARN_ONCE() was initially used to log this failure, but it was not deemed helpful in resolving it. Instead, the kernel maintainers switched to using netdev_warn_once() to better handle the failure and avoid excessive warning reports.

This vulnerability, though not Critical, can cause issues in network-related functions, particularly in HSR where frames need to be supervised and announced.

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.