Bug 2492313 (CVE-2026-53022) - CVE-2026-53022 kernel: platform/x86: dell-wmi-sysman: bound enumeration string aggregation
Summary: CVE-2026-53022 kernel: platform/x86: dell-wmi-sysman: bound enumeration strin...
Keywords:
Status: NEW
Alias: CVE-2026-53022
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: 2026-06-24 18:05 UTC by OSIDB Bzimport
Modified: 2026-06-29 13:02 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-06-24 18:05:07 UTC
In the Linux kernel, the following vulnerability has been resolved:

platform/x86: dell-wmi-sysman: bound enumeration string aggregation

populate_enum_data() aggregates firmware-provided value-modifier
and possible-value strings into fixed 512-byte struct members.
The current code bounds each individual source string but then
appends every string and separator with raw strcat() and no
remaining-space check.

Switch the aggregation loops to a bounded append helper and
reject enumeration packages whose combined strings do not fit
in the destination buffers.

[ij: add include]

Comment 1 Mauro Matteo Cascella 2026-06-29 12:59:55 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062452-CVE-2026-53022-24cc@gregkh/T


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