Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — nbd: fix race between timeout and normal completion
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H L N U H H H 7.0 .0046 38.5 —
AFFECTED
Product Versions Fixed
Linux 2895f1831e911ca87d4efdf43e35eb72a0c7e66e – —
Linux 5.19 – 6.1.113
TIMELINE
Oct 21 Reserved by Linux
Oct 21 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2024-49855 (Linux). CVSS 9.8 → 7 (NVD).
Description
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| October 21, 2024 | Reserved | Reserved by Linux |
| October 21, 2024 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2024-49855 (Linux). CVSS 9.8 → 7 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 2895f1831e911ca87d4efdf43e35eb72a0c7e66e | — |
| Linux | Linux | — | 5.19 | 6.1.113 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-49855 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.