NULL Pointer Dereference Affecting gfs2-kmp-default package, versions <6.4.0-150700.53.34.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-SLES157-GFS2KMPDEFAULT-15852919
  • published31 Mar 2026
  • disclosed26 Mar 2026

Introduced: 26 Mar 2026

NewCVE-2026-23062  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 gfs2-kmp-default to version 6.4.0-150700.53.34.1 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:

platform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro

The GET_INSTANCE_ID macro that caused a kernel panic when accessing sysfs attributes:

  1. Off-by-one error: The loop condition used '<=' instead of '<', causing access beyond array bounds. Since array indices are 0-based and go from 0 to instances_count-1, the loop should use '<'.

  2. Missing NULL check: The code dereferenced attr_name_kobj->name without checking if attr_name_kobj was NULL, causing a null pointer dereference in min_length_show() and other attribute show functions.

The panic occurred when fwupd tried to read BIOS configuration attributes:

Oops: general protection fault [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:min_length_show+0xcf/0x1d0 [hp_bioscfg]

Add a NULL check for attr_name_kobj before dereferencing and corrects the loop boundary to match the pattern used elsewhere in the driver.

CVSS Base Scores

version 3.1