NULL Pointer Dereference Affecting gfs2-kmp-default package, versions <5.3.18-150300.59.218.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.28% (20th percentile)

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  • Snyk IDSNYK-SLES153-GFS2KMPDEFAULT-13023780
  • published24 Sept 2025
  • disclosed23 Sept 2025

Introduced: 23 Sep 2025

CVE-2022-49492  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 gfs2-kmp-default to version 5.3.18-150300.59.218.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gfs2-kmp-default package and not the gfs2-kmp-default package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags

In nvme_alloc_admin_tags, the admin_q can be set to an error (typically -ENOMEM) if the blk_mq_init_queue call fails to set up the queue, which is checked immediately after the call. However, when we return the error message up the stack, to nvme_reset_work the error takes us to nvme_remove_dead_ctrl() nvme_dev_disable() nvme_suspend_queue(&dev->queues[0]).

Here, we only check that the admin_q is non-NULL, rather than not an error or NULL, and begin quiescing a queue that never existed, leading to bad / NULL pointer dereference.

CVSS Base Scores

version 3.1