GHSA-GV4G-VVQ5-J6R7
Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 12:30In the Linux kernel, the following vulnerability has been resolved:
media: em28xx: defer audio-only extension registration
The audio-only path registers extensions while probing the primary device. For a dual-TS board, this happens before dev_next is created. The duplicate device inherits is_audio_only and is then independently inserted into em28xx_devlist.
The list is intended to contain only primary devices: extension operations reach the secondary device through dev_next. The independently linked secondary can be freed during disconnect while its list node remains reachable, resulting in a use-after-free.
Defer audio-only extension registration to the module-request work item. It runs only after probing has completed construction of the optional secondary device, so only the primary is registered and extension callbacks reach the secondary through dev_next.
{
"affected": [],
"aliases": [
"CVE-2026-89892"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-16T11:16:57Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: em28xx: defer audio-only extension registration\n\nThe audio-only path registers extensions while probing the primary device.\nFor a dual-TS board, this happens before dev_next is created. The duplicate\ndevice inherits is_audio_only and is then independently inserted into\nem28xx_devlist.\n\nThe list is intended to contain only primary devices: extension operations\nreach the secondary device through dev_next. The independently linked\nsecondary can be freed during disconnect while its list node remains\nreachable, resulting in a use-after-free.\n\nDefer audio-only extension registration to the module-request work item. It\nruns only after probing has completed construction of the optional\nsecondary device, so only the primary is registered and extension callbacks\nreach the secondary through dev_next.",
"id": "GHSA-gv4g-vvq5-j6r7",
"modified": "2026-09-16T12:30:40Z",
"published": "2026-09-16T12:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89892"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0da1e627f4fc9d0e947fdae90913042120878923"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1abe9524dec0fd26e9ceb8d586034d6f68dd8273"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4666197ca4f7d80cd3b0292054fe45d76be9ba04"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4e11c45dfdc72ab656067b1df8fcebaf52fd4715"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/95f76f51937fdfb0fc1e14cae606b1ef574a56f3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d06067ee32620f272cfb80c7bc7c572ad4e74724"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f8d7e77d9c621b42a191c67a9b37bec23dc1d555"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f9322ac9f862961d7f377b87ec26c8565af7e073"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date | Other |
|---|
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