ASoC: topology: Check PCM and DAI name strings before use
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.
CVE-2026-74291
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-74291
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "64527e8a352968bda529f01df1c9dd5fe581ff04",
"lessThan": "c405b07246bf179e9457de57501c3470175b165e",
"versionType": "git"
},
{
"status": "affected",
"version": "64527e8a352968bda529f01df1c9dd5fe581ff04",
"lessThan": "473f7d25d93e80db526a9d05887f0071abdc6d9b",
"versionType": "git"
},
{
"status": "affected",
"version": "64527e8a352968bda529f01df1c9dd5fe581ff04",
"lessThan": "5c2537cf24d673956b4e58029001667f89586fa2",
"versionType": "git"
},
{
"status": "affected",
"version": "64527e8a352968bda529f01df1c9dd5fe581ff04",
"lessThan": "ba37b62ed0a443b8e23f53a7477e7f2537fd34c7",
"versionType": "git"
},
{
"status": "affected",
"version": "64527e8a352968bda529f01df1c9dd5fe581ff04",
"lessThan": "b7e44d1986d6671342c19b82192189ca5db5dab7",
"versionType": "git"
}
],
"programFiles": [
"sound/soc/soc-topology.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"sound/soc/soc-topology.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74291
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #8253 · Revision 1
- Added to Heist Feed
- Publisher date