PT-2026-37511 · Linux+2 · Linux Kernel+2

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CVE-2026-43171

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Published

2026-01-08

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Updated

2026-08-23

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 (affected versions not specified)
Description An issue exists in the cper print fw err() function where the logic fails to verify if the error record length is sufficient to handle the offset. In cases of faulty firmware, if the offset exceeds the actual record, an underflow occurs during the length -= offset operation, potentially causing the system to dump the entire memory. This can lead to significant performance degradation due to large memory dumps, unauthorized data disclosure, or a system OOPS (a kernel panic) if an unmapped memory region is accessed.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Integer Underflow

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Weakness Enumeration

Related Identifiers

BDU:2026-11693
CVE-2026-43171
OESA-2026-2416
OPENSUSE-SU-2026:21388-1
SUSE-SU-2026:22433-1
SUSE-SU-2026:22436-1
SUSE-SU-2026:22458-1
SUSE-SU-2026:22460-1
SUSE-SU-2026:22742-1
SUSE-SU-2026:22769-1
SUSE-SU-2026:22812-1
SUSE-SU-2026:22835-1
SUSE-SU-2026:2722-1
SUSE-SU-2026:2799-1
USN-8492-1
USN-8492-2
USN-8492-3
USN-8492-4
USN-8492-5
USN-8497-1
USN-8498-1
USN-8499-1
USN-8575-1
USN-8575-2
USN-8575-3
USN-8576-1
USN-8576-2
USN-8597-1
USN-8606-1
USN-8607-1
USN-8609-1
USN-8610-1
USN-8619-1
USN-8620-1
USN-8620-2
USN-8620-3
USN-8620-4
USN-8668-1

Affected Products

Linuxmint
Linux Kernel
Ubuntu