Answer in brief
CVE-2026-74291 records a Unknown severity vulnerability in ASoC: topology: Check PCM and DAI name strings before use. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 4.6 | Not reported |
| Linux/Linuxgeneric | >=64527e8a352968bda529f01df1c9dd5fe581ff04 <c405b07246bf179e9457de57501c3470175b165e || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <473f7d25d93e80db526a9d05887f0071abdc6d9b || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <5c2537cf24d673956b4e58029001667f89586fa2 || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <ba37b62ed0a443b8e23f53a7477e7f2537fd34c7 || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <b7e44d1986d6671342c19b82192189ca5db5dab7 | c405b07246bf179e9457de57501c3470175b165e, 473f7d25d93e80db526a9d05887f0071abdc6d9b, 5c2537cf24d673956b4e58029001667f89586fa2, ba37b62ed0a443b8e23f53a7477e7f2537fd34c7, b7e44d1986d6671342c19b82192189ca5db5dab7 |
| Linux/Linuxgeneric | >=64527e8a352968bda529f01df1c9dd5fe581ff04 <ba37b62ed0a443b8e23f53a7477e7f2537fd34c7 || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <b7e44d1986d6671342c19b82192189ca5db5dab7 | ba37b62ed0a443b8e23f53a7477e7f2537fd34c7, b7e44d1986d6671342c19b82192189ca5db5dab7 |
| Linux/Linuxgeneric | >=64527e8a352968bda529f01df1c9dd5fe581ff04 <473f7d25d93e80db526a9d05887f0071abdc6d9b || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <5c2537cf24d673956b4e58029001667f89586fa2 || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <ba37b62ed0a443b8e23f53a7477e7f2537fd34c7 || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <b7e44d1986d6671342c19b82192189ca5db5dab7 | 473f7d25d93e80db526a9d05887f0071abdc6d9b, 5c2537cf24d673956b4e58029001667f89586fa2, ba37b62ed0a443b8e23f53a7477e7f2537fd34c7, b7e44d1986d6671342c19b82192189ca5db5dab7 |
| Linux/Linuxgeneric | >=64527e8a352968bda529f01df1c9dd5fe581ff04 <d09dad8dff862c4b5aac48b1223e512074ffeb08 || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <c405b07246bf179e9457de57501c3470175b165e || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <473f7d25d93e80db526a9d05887f0071abdc6d9b || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <5c2537cf24d673956b4e58029001667f89586fa2 || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <ba37b62ed0a443b8e23f53a7477e7f2537fd34c7 || >=64527e8a352968bda529f01df1c9dd5fe581ff04 <b7e44d1986d6671342c19b82192189ca5db5dab7 | d09dad8dff862c4b5aac48b1223e512074ffeb08, c405b07246bf179e9457de57501c3470175b165e, 473f7d25d93e80db526a9d05887f0071abdc6d9b, 5c2537cf24d673956b4e58029001667f89586fa2, ba37b62ed0a443b8e23f53a7477e7f2537fd34c7, b7e44d1986d6671342c19b82192189ca5db5dab7 |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.