CVE-2026-45845

The CVE-2026-45845 issue affects the Linux kernel net/sched taprio code. When deleting a TAPRIO child qdisc via RTM_DELQDISC, taprio_graft() could store NULL in q->qdiscs[] and later RTM_GETTCLASS dump paths could dereference a NULL pointer during taprio_dump_class(), causing a kernel NULL poi...

CVE-2026-45845 net/sched: taprio: fix NULL pointer dereference in class dump

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix NULL pointer dereference in class dump When a TAPRIO child qdisc is deleted via RTMDELQDISC, tapriograft is called with new == NULL and stores NULL into q-qdiscscl - 1. Subsequent RTMGETTCLASS dump operatio...