PT-2024-11891 · Linux+5 · Linux Kernel+5

Published

2024-11-30

·

Updated

2026-03-14

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CVE-2022-49034

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 5.19-rc5+
Description The issue is related to a warning generated by cpu max bits warn() when CONFIG CPUMASK OFFSTACK and CONFIG DEBUG PER CPU MAPS are selected, causing a runtime warning when showing /proc/cpuinfo. This is fixed by using nr cpu ids instead of NR CPUS to iterate CPUs.
Recommendations For Linux kernel versions prior to 5.19-rc5+, update to a version that includes the fix for the warning generated by cpu max bits warn(). As a temporary workaround, consider disabling the show cpuinfo() function until a patch is available. Restrict access to the /proc/cpuinfo file to minimize the risk of exploitation.

Exploit

Fix

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dbugs@ptsecurity.com

Weakness Enumeration

CWE-706

Related Identifiers

BDU:2025-04434
CVE-2022-49034
DLA-4076-1
OESA-2025-1032
OESA-2025-1033
OESA-2025-1034
OESA-2025-1035
OESA-2025-1036
OESA-2025-1037
USN-7276-1
USN-7277-1
USN-7310-1
USN-7387-1
USN-7387-2
USN-7387-3
USN-7388-1
USN-7389-1
USN-7390-1
USN-7391-1
USN-7392-1
USN-7392-2
USN-7392-3
USN-7392-4
USN-7393-1
USN-7401-1
USN-7407-1
USN-7413-1
USN-7421-1
USN-7449-1
USN-7449-2
USN-7450-1
USN-7451-1
USN-7452-1
USN-7453-1
USN-7458-1
USN-7459-1
USN-7459-2
USN-7463-1
USN-7468-1
USN-7523-1
USN-7524-1
USN-7539-1
USN-7540-1

Affected Products

Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Ubuntu