PT-2025-54071 · Linux+2 · Linux Kernel+2

CVE-2023-54242

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Published

2023-01-01

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Updated

2026-08-21

CVSS v3.1

5.5

Medium

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.1-1280.native
Description The Linux kernel contains a flaw within the block, bfq subsystem. Specifically, a division by zero error can occur when the weighted sum is zero during limit calculations. This issue was discovered while running stress tests as root using the command: stress-ng --ioprio 0. The error manifests as a divide error oops.
Recommendations Versions prior to 6.2.1-1280.native should be updated.

Exploit

Fix

Divide By Zero

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Weakness Enumeration

Related Identifiers

BDU:2026-13781
CVE-2023-54242
RHSA-2024:2394
SUSE-SU-2026:0263-1
SUSE-SU-2026:0317-1
SUSE-SU-2026:0350-1
SUSE-SU-2026:0369-1
SUSE-SU-2026:0411-1
SUSE-SU-2026:0617-1

Affected Products

Debian
Linux Kernel
Red Os