CVE-2022-49492
kernel: nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 26, 2025
Updated · June 30, 2026
Description
A flaw was found in the nvme module in the Linux kernel. A NULL pointer dereference can be triggered due to improper error management when the blk_mq_init_queue function fails to set up the queue, resulting in a denial of service.
Statement
This issue has been fixed in Red Hat Enterprise Linux 8.9 and 9.2 via RHSA-2023:7077 [1] and RHSA-2023:2458 [2], respectively.
[1]. https://access.redhat.com/errata/RHSA-2023:7077
[2]. https://access.redhat.com/errata/RHSA-2023:2458
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference