Bug 2461549 (CVE-2026-31543) - CVE-2026-31543 kernel: crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying
Summary: CVE-2026-31543 kernel: crash_dump: don't log dm-crypt key bytes in read_key_f...
Keywords:
Status: NEW
Alias: CVE-2026-31543
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-24 15:07 UTC by OSIDB Bzimport
Modified: 2026-04-24 16:49 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-04-24 15:07:54 UTC 
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.
Comment 1 Keith Grant 2026-04-24 16:47:08 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026042423-CVE-2026-31543-803c@gregkh/T
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