CVE-2026-74291ASoC: topology: Check PCM and DAI name strings before use
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 93% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 64527e8a352968bda529f01df1c9dd5fe581ff04 – < d09dad8dff862c4b5aac48b1223e512074ffeb08
- affected 64527e8a352968bda529f01df1c9dd5fe581ff04 – < c405b07246bf179e9457de57501c3470175b165e
- affected 64527e8a352968bda529f01df1c9dd5fe581ff04 – < 473f7d25d93e80db526a9d05887f0071abdc6d9b
- affected 64527e8a352968bda529f01df1c9dd5fe581ff04 – < 5c2537cf24d673956b4e58029001667f89586fa2
- affected 64527e8a352968bda529f01df1c9dd5fe581ff04 – < ba37b62ed0a443b8e23f53a7477e7f2537fd34c7
- affected 64527e8a352968bda529f01df1c9dd5fe581ff04 – < b7e44d1986d6671342c19b82192189ca5db5dab7
- affected 4.6
- unaffected < 4.6
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References6
- https://git.kernel.org/stable/c/d09dad8dff862c4b5aac48b1223e512074ffeb08 (opens in a new tab)
- https://git.kernel.org/stable/c/c405b07246bf179e9457de57501c3470175b165e (opens in a new tab)
- https://git.kernel.org/stable/c/473f7d25d93e80db526a9d05887f0071abdc6d9b (opens in a new tab)
- https://git.kernel.org/stable/c/5c2537cf24d673956b4e58029001667f89586fa2 (opens in a new tab)
- https://git.kernel.org/stable/c/ba37b62ed0a443b8e23f53a7477e7f2537fd34c7 (opens in a new tab)
- https://git.kernel.org/stable/c/b7e44d1986d6671342c19b82192189ca5db5dab7 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-59438 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-74291)Record last updated .