CVE-2026-74642 (GCVE-0-2026-74642)
Vulnerability from cvelistv5
Published
2026-08-22 15:32
Modified
2026-08-22 15:32
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb: Fix UAF at delayed release of MIDI2 EPs
The recent fix for UAF in ump_to_endpoint() caused another UAF because
it tries to dereference the UMP endpoint object, but this might be
executed at a delayed context where the endpoint has been already
released.
Add private_free to clear the associated data for avoiding the further
dereference for delayed releases.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"sound/usb/midi2.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "d431941825d357be7d9ab0cb7505e3a1963bd89e",
"status": "affected",
"version": "49eccef6d6e1c00dac6fb2e7eb6f9206c33e1c37",
"versionType": "git"
},
{
"lessThan": "422d8a02de5ce6a29d616d55e5ead5dec69ac1d7",
"status": "affected",
"version": "8a7a33b846d6ba695891b8d0040027cdbad8cd52",
"versionType": "git"
},
{
"lessThan": "d217d723c5e43881b952cdb978477f7f2dc0b6d7",
"status": "affected",
"version": "cc014ebf803174f0e5d15956dfc5a38413c945ae",
"versionType": "git"
},
{
"lessThan": "f9d492a39ebeb1a56f13ec6dd165a18a48dec812",
"status": "affected",
"version": "ae388c0e1bf727972096f770f82d12e4f748d1b6",
"versionType": "git"
},
{
"lessThan": "f8a80cfb68613fb7e6452b66447dbc63f435d140",
"status": "affected",
"version": "4a05b2d1b4642df74f30b6f54843e825c4a2bfd3",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"sound/usb/midi2.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "6.6.152",
"status": "affected",
"version": "6.6.151",
"versionType": "semver"
},
{
"lessThan": "6.12.104",
"status": "affected",
"version": "6.12.103",
"versionType": "semver"
},
{
"lessThan": "6.18.45",
"status": "affected",
"version": "6.18.44",
"versionType": "semver"
},
{
"lessThan": "7.1.9",
"status": "affected",
"version": "7.1.8",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.152",
"versionStartIncluding": "6.6.151",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.104",
"versionStartIncluding": "6.12.103",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.45",
"versionStartIncluding": "6.18.44",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.9",
"versionStartIncluding": "7.1.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb: Fix UAF at delayed release of MIDI2 EPs\n\nThe recent fix for UAF in ump_to_endpoint() caused another UAF because\nit tries to dereference the UMP endpoint object, but this might be\nexecuted at a delayed context where the endpoint has been already\nreleased.\n\nAdd private_free to clear the associated data for avoiding the further\ndereference for delayed releases."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-22T15:32:20.418Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/d431941825d357be7d9ab0cb7505e3a1963bd89e"
},
{
"url": "https://git.kernel.org/stable/c/422d8a02de5ce6a29d616d55e5ead5dec69ac1d7"
},
{
"url": "https://git.kernel.org/stable/c/d217d723c5e43881b952cdb978477f7f2dc0b6d7"
},
{
"url": "https://git.kernel.org/stable/c/f9d492a39ebeb1a56f13ec6dd165a18a48dec812"
},
{
"url": "https://git.kernel.org/stable/c/f8a80cfb68613fb7e6452b66447dbc63f435d140"
}
],
"title": "ALSA: usb: Fix UAF at delayed release of MIDI2 EPs",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-74642",
"datePublished": "2026-08-22T15:32:20.418Z",
"dateReserved": "2026-08-15T05:44:03.922Z",
"dateUpdated": "2026-08-22T15:32:20.418Z",
"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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