Уязвимость реализации сокетов с адресацией AF_VSOCK ядра операционной системы Linux, позволяющая нарушителю повысить свои привилегии

Уязвимость функции ndb_queue_rq ядра операционной системы Linux, позволяющая нарушителю выполнить произвольный код

A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.

nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.