CVE-2026-74726

A flaw was found in the Linux kernel's bonding module, specifically within the Active-Backup Load Balancing ALB monitor. This vulnerability arises from a race condition where the system makes decisions based on outdated network interface status. This can lead to a system crash, causing a Denial o...

CVE-2026-74726 bonding: alb: re-check primary_is_promisc under RTNL in bond_alb_monitor

In the Linux kernel, the following vulnerability has been resolved: bonding: alb: re-check primaryispromisc under RTNL in bondalbmonitor bondalbmonitor reads primaryispromisc under RCU, then drops RCU and takes RTNL via rtnltrylock before undoing the promiscuity it set on the active slave. In tha...

PT-2026-79731

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the bond alb monitor function. The function reads the primary is promisc variable under RCU Read-Copy-Update, then releases RCU and acquires RTNL Routing Netli...