CVE-2026-72323 ipv4: igmp: Fix potential UAF in igmp_gq_start_timer()

In the Linux kernel, the following vulnerability has been resolved: ipv4: igmp: Fix potential UAF in igmpgqstarttimer A race condition exists between device teardown inetdevdestroy and incoming IGMP query processing igmprcv, leading to a Use-After-Free in the IGMP timer callback. During device...