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.

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

Published

2026-08-15

Modified

2026-10-03

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/473f7d25d93e80db526a9d05887f0071abdc6d9b
• https://git.kernel.org/stable/c/5c2537cf24d673956b4e58029001667f89586fa2
• https://git.kernel.org/stable/c/b7e44d1986d6671342c19b82192189ca5db5dab7
• https://git.kernel.org/stable/c/ba37b62ed0a443b8e23f53a7477e7f2537fd34c7
• https://git.kernel.org/stable/c/c405b07246bf179e9457de57501c3470175b165e

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