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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-43171 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: EFI/CPER: don't dump the entire memory region The current logic at cper_print_fw_err() doesn't check if the error record length is big enough to handle offset. On a bad firmware, if the ofset is above the actual record, length -= offset will underflow, making it dump the entire memory. The end result can be: - the logic taking a lot of time dumping large regions of memory; - data disclosure due to the memory dumps; - an OOPS, if it tries to dump an unmapped memory region. Fix it by checking if the section length is too small before doing a hex dump. [ rjw: Subject tweaks ]


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/02de64ab54b4bb0f1b21bb324aeff3b08612be33 kernel.org
https://git.kernel.org/stable/c/0e09b522f2622841389c3b2f9ac4969e35c0809d kernel.org
https://git.kernel.org/stable/c/54e131db4cdffd946db890ff33ff2647053fd4f6 kernel.org
https://git.kernel.org/stable/c/55cc6fe5716f678f06bcb95140882dfa684464ec kernel.org
https://git.kernel.org/stable/c/5a9b1dda8481b82851a655c3bcc5b44879b95334 kernel.org
https://git.kernel.org/stable/c/64ae5aaa7ac93c83da456039e8ec747bfa8a7cff kernel.org
https://git.kernel.org/stable/c/7780c0bad2a3a70a8c0113a33c02f4151d901eb3 kernel.org
https://git.kernel.org/stable/c/a8419f5f2c5f2d80848ddabb2b95cf0da84a5f91 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-43171
NVD Published Date:
05/06/2026
NVD Last Modified:
05/06/2026
Source:
kernel.org