CVE-2026-74291: Linux kernel · ASoC: topology: Check PCM and DAI name strings before use
Source GCVE Database
Mentioned vulnerabilities
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
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.
References
- nvd.nist.gov/vuln/detail/CVE-2026-74291 (opens in a new tab)
- git.kernel.org/stable/c/473f7d25d93e80db526a9d05887f0071abdc6d9b (opens in a new tab)
- git.kernel.org/stable/c/5c2537cf24d673956b4e58029001667f89586fa2 (opens in a new tab)
- git.kernel.org/stable/c/b7e44d1986d6671342c19b82192189ca5db5dab7 (opens in a new tab)
- git.kernel.org/stable/c/ba37b62ed0a443b8e23f53a7477e7f2537fd34c7 (opens in a new tab)
- git.kernel.org/stable/c/c405b07246bf179e9457de57501c3470175b165e (opens in a new tab)