CVE-2026-68346 (GCVE-0-2026-68346)
Vulnerability from cvelistv5
Published
2026-08-10 12:03
Modified
2026-08-17 05:03
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ALSA: hda: cs35l41: validate and free ACPI mute object
cs35l41_get_acpi_mute_state() evaluates a _DSM method to get the ACPI
mute state and reads the first byte from the returned object.
However, the returned ACPI object is owned by the caller and is never
freed after use, so each successful query leaks the _DSM result object.
The code also assumes that the returned object is a buffer with at least
one byte. A malformed firmware response can return a different object
type or an empty buffer, and the direct ret->buffer.pointer dereference
can then access an invalid pointer.
Use the typed _DSM helper, validate that the returned buffer contains at
least one byte, and free the ACPI object after reading it.
References
| URL | Tags | |
|---|---|---|
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"sound/hda/codecs/side-codecs/cs35l41_hda.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "7fea0c89ed39a13d9a31163a74f8c62de30a4ffc",
"status": "affected",
"version": "447106e92a0c86c332d40710436f38f64c322cd6",
"versionType": "git"
},
{
"lessThan": "08433c71f15984ddd5f5a307cf3f0aa9b84583aa",
"status": "affected",
"version": "447106e92a0c86c332d40710436f38f64c322cd6",
"versionType": "git"
},
{
"lessThan": "d5dfdf43259ad9d054052012095b1630e7366dcf",
"status": "affected",
"version": "447106e92a0c86c332d40710436f38f64c322cd6",
"versionType": "git"
},
{
"lessThan": "3b597d24dc0455ae926f1053f97c2725038fc3cd",
"status": "affected",
"version": "447106e92a0c86c332d40710436f38f64c322cd6",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"sound/hda/codecs/side-codecs/cs35l41_hda.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.7"
},
{
"lessThan": "6.7",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.101",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.101",
"versionStartIncluding": "6.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.42",
"versionStartIncluding": "6.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.6",
"versionStartIncluding": "6.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2",
"versionStartIncluding": "6.7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda: cs35l41: validate and free ACPI mute object\n\ncs35l41_get_acpi_mute_state() evaluates a _DSM method to get the ACPI\nmute state and reads the first byte from the returned object.\n\nHowever, the returned ACPI object is owned by the caller and is never\nfreed after use, so each successful query leaks the _DSM result object.\n\nThe code also assumes that the returned object is a buffer with at least\none byte. A malformed firmware response can return a different object\ntype or an empty buffer, and the direct ret-\u003ebuffer.pointer dereference\ncan then access an invalid pointer.\n\nUse the typed _DSM helper, validate that the returned buffer contains at\nleast one byte, and free the ACPI object after reading it."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T05:03:46.731Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/7fea0c89ed39a13d9a31163a74f8c62de30a4ffc"
},
{
"url": "https://git.kernel.org/stable/c/08433c71f15984ddd5f5a307cf3f0aa9b84583aa"
},
{
"url": "https://git.kernel.org/stable/c/d5dfdf43259ad9d054052012095b1630e7366dcf"
},
{
"url": "https://git.kernel.org/stable/c/3b597d24dc0455ae926f1053f97c2725038fc3cd"
}
],
"title": "ALSA: hda: cs35l41: validate and free ACPI mute object",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-68346",
"datePublished": "2026-08-10T12:03:23.079Z",
"dateReserved": "2026-07-30T09:28:09.384Z",
"dateUpdated": "2026-08-17T05:03:46.731Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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