Related Vulnerabilities: CVE-2021-3348  

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.

Severity Medium

Remote No

Type Arbitrary code execution

Description

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.

AVG-1515 linux-lts 5.4.94-1 Medium Vulnerable

AVG-1514 linux-zen 5.10.12.zen1-1 Medium Vulnerable

AVG-1513 linux-hardened 5.10.12.hardened1-1 Medium Vulnerable

AVG-1512 linux 5.10.12.arch4-1 Medium Vulnerable

https://www.openwall.com/lists/oss-security/2021/01/28/3
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b98e762e3d71e893b221f871825dc64694cfb258