CVE-2024-49855 — nbd: fix race between timeout and normal completion
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(), no…
Published: 2024-10-21 · CVSS: 9.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7