CVE-2024-49855: Linux Kernel

High severity, CVSS 7.0. EPSS: 0.5% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: nbd: fix race between timeout and normal completion If request timetout is handled by nbd_requeue_cmd(), normal completion has to be stopped for avoiding to complete this requeued request, other use-after-free can be triggered. Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime make sure that cmd->lock is grabbed for clearing the flag and the requeue.

Affected products

• Linux Linux Kernel: from 5.18.4, before 5.19 (fixed in 5.19); from 5.19, before 6.1.113 (fixed in 6.1.113); from 6.2, before 6.6.54 (fixed in 6.6.54); from 6.7, before 6.10.13 (fixed in 6.10.13); from 6.11, before 6.11.2 (fixed in 6.11.2); version 5.17.15 only

Published 2024-10-21. Last modified 2026-08-04.