Critical · published October 21, 2024
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.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 5.18.4, < 5.19 | 5.19 |
| linux/linux_kernel | ≥ 5.19, < 6.1.113 | 6.1.113 |
| linux/linux_kernel | ≥ 6.2, < 6.6.54 | 6.6.54 |
| linux/linux_kernel | ≥ 6.7, < 6.10.13 | 6.10.13 |
| linux/linux_kernel | ≥ 6.11, < 6.11.2 | 6.11.2 |
| linux/linux_kernel | all versions | — |