Bug 2540189 (CVE-2026-93213) - CVE-2026-93213 kernel: of: fix out-of-bounds read in of_alias_scan() stem parser
Summary: CVE-2026-93213 kernel: of: fix out-of-bounds read in of_alias_scan() stem parser
Keywords:
Status: NEW
Alias: CVE-2026-93213
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-24 15:22 UTC by OSIDB Bzimport
Modified: 2026-10-20 13:03 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-09-24 15:22:16 UTC
In the Linux kernel, the following vulnerability has been resolved:

of: fix out-of-bounds read in of_alias_scan() stem parser

The stem parser tests isdigit(*(end - 1)) before checking end > start
and so reads one byte before the property name when the name is empty
or all digits. Check the bound first.


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