Medium 5.5Published Apr 24, 2026

CVE-2026-31543crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying

Updated under an hour ago (Oct 28, 2026, 11:20 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying When debug logging is enabled, read_key_from_user_keying() logs the first 8 bytes of the key payload and partially exposes the dm-crypt key. Stop logging any key bytes.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 479e58549b0fa7e80f1e0b9e69e0a2a8e6711132 before 4897bd307ba8757c31a3325ba6730961be606016; from 479e58549b0fa7e80f1e0b9e69e0a2a8e6711132 before ed8d91f469845d62d44c565a55d2ab1767969357; 479e58549b0fa7e80f1e0b9e69e0a2a8e6711132 builds before 36f46b0e36892eba08978eef7502ff3c94ddba77	CNA record
linux linux_kernel linux:linux_kernel	from 6.16 before 6.18.20; from 6.19 before 6.19.10; 7.0; 7.0; 7.0; 7.0	NVD

References

References

https://git.kernel.org/stable/c/4897bd307ba8757c31a3325ba6730961be606016	patch
https://git.kernel.org/stable/c/ed8d91f469845d62d44c565a55d2ab1767969357	patch
https://git.kernel.org/stable/c/36f46b0e36892eba08978eef7502ff3c94ddba77	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.