Bug 2513221 (CVE-2026-68316) - CVE-2026-68316 kernel: accel: ethosu: Fix element size accounting for cmd stream validation
Summary: CVE-2026-68316 kernel: accel: ethosu: Fix element size accounting for cmd str...
Keywords:
Status: NEW
Alias: CVE-2026-68316
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: 2026-08-10 12:25 UTC by OSIDB Bzimport
Modified: 2026-08-26 12:56 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-08-10 12:25:37 UTC
In the Linux kernel, the following vulnerability has been resolved:

accel: ethosu: Fix element size accounting for cmd stream validation

There are 2 issues with the element size handling in the command stream
validation which result in too small of a size calculated when the
element size is 16/32/64 bits.

For NHWC format, the element size is simply missing from the
calculation.

The bitfield for the element size is different between IFM/IFM2 and
OFM. IFM and IFM2 encode the precision in parameter bits 2:3, while OFM
uses bits 1:2.


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