CVE-2026-74291
In the Linux kernel, the following vulnerability has been resolved: ASoC: topology: Check PCM and DAI name strings before use Topology objects store several PCM and DAI names in fixed-size UAPI arrays. Other topology parser paths validate these fields with bounded strnlen() checks before using them as C strings, but the PCM and DAI paths still pass some fixed-size arrays directly to strlen(), devm_kstrdup(), DAI lookup, and diagnostic prints. A malformed topology blob with a non-NUL-terminated PCM, DAI, or stream capability name can therefore make the parser read past the end of the fixed-size field. Reject unterminated PCM and DAI name fields before consuming them as C strings.
Affected versions
Linux kernel versions
4.6
and later are affected. Fixed in
7.1.5,
7.2-rc1
and their respective stable series.
References
2 totalFrequently asked questions
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What is CVE-2026-74291?
CVE-2026-74291 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.6 onward and has been patched in 7.1.5 and 7.2-rc1. CVE-2026-74291 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74291?
Yes. CVE-2026-74291 has been patched. Fixed versions include 7.1.5 and 7.2-rc1. If you are running Linux kernel 4.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74291 actively exploited?
No. CVE-2026-74291 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.