Bug 2516289 (CVE-2026-72300) - CVE-2026-72300 kernel: ASoC: SOF: topology: validate vendor array size before parsing
Summary: CVE-2026-72300 kernel: ASoC: SOF: topology: validate vendor array size before...
Keywords:
Status: NEW
Alias: CVE-2026-72300
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-15 06:04 UTC by OSIDB Bzimport
Modified: 2026-08-18 05:35 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-08-15 06:04:42 UTC
In the Linux kernel, the following vulnerability has been resolved:

ASoC: SOF: topology: validate vendor array size before parsing

sof_parse_token_sets() reads array->size while iterating over topology
private data. The loop condition only checks that some data remains, so a
malformed topology with a truncated trailing vendor array can make the
parser read the size field before a full vendor-array header is available.

Validate that the remaining private data contains a complete
snd_soc_tplg_vendor_array header before reading array->size.

The declared array size check also needs to remain signed. asize is an int,
but sizeof(*array) has type size_t, so comparing them directly promotes
negative asize values to unsigned and lets them pass the check,
as reported in the stable review thread reference below.

Cast sizeof(*array) to int when validating the declared array size. This
rejects negative, zero and otherwise too-small sizes before the parser
dispatches to the tuple-specific code.


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