CVE-2026-23165

A deadlock vulnerability was found in the Solarflare (sfc) network driver. When reading RSS configuration via ethtool -x, the driver attempts to acquire the rss_lock that is already held by the networking core, causing a deadlock and system hang.

This deadlock affects systems with Solarflare NICs when querying RSS settings via ethtool. Any local user with access to network configuration can trigger the hang. The fix is straightforward — remove the redundant lock acquisition in the driver.

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.