CVE-2023-54027 Affecting gfs2-kmp-default package, versions <6.4.0-150700.53.28.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-SLES157-GFS2KMPDEFAULT-15136994
  • published29 Jan 2026
  • disclosed28 Jan 2026

Introduced: 28 Jan 2026

CVE-2023-54027  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 gfs2-kmp-default to version 6.4.0-150700.53.28.1 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:15.7 relevant fixed versions and status.

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

iio: core: Prevent invalid memory access when there is no parent

Commit 813665564b3d ("iio: core: Convert to use firmware node handle instead of OF node") switched the kind of nodes to use for label retrieval in device registration. Probably an unwanted change in that commit was that if the device has no parent then NULL pointer is accessed. This is what happens in the stock IIO dummy driver when a new entry is created in configfs:

mkdir /sys/kernel/config/iio/devices/dummy/foo

BUG: kernel NULL pointer dereference, address: ... ... Call Trace: __iio_device_register iio_dummy_probe

Since there seems to be no reason to make a parent device of an IIO dummy device mandatory, let’s prevent the invalid memory access in __iio_device_register when the parent device is NULL. With this change, the IIO dummy driver works fine with configfs.

CVSS Base Scores

version 3.1