The vulnerability of the br_multicast_leave_group() function in the net/bridge/br_multicast.c module, which is part of the Linux kernel’s networking functions, allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the brmulticastleavegroup function in the net/bridge/brmulticast.c module, which is part of the Linux kernel’s networking functions, relates to the reutilization of previously freed memory. Exploiting this vulnerability could allow a remote attacker to compromise the...

CVE-2026-74480: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: bridge: stop fast-leave after deleting a port group brmulticastleavegroup iterates mp-ports with pp = &p-next in its fast-leave path. After brmulticastdelpg removes p, continuing the loop advances pp through the deleted entr...