UnratedFix available
ALSA: dummy: Check card index validity at probe
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: ALSA: dummy: Check card index validity at probe snd_dummy_probe() blindly trusts that the given devptr->id value is within the proper card index range. It's OK for the devices the driver itself creates at the module probe time, but if the device is bound manually via sysfs interface, this could be -1 as "none", and this leads to OOB access for index[] and other parameters. Add a sanity check for the card index and warn/correct it if it's a value out of the range.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.218, 6.1.185, 6.12.106, 6.18.47, 6.6.154, 7.1.11, 7.2.1
- CVEs
- CVE-2026-80812
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 17:35 UTC · Revision 1
Source evidence
ALSA: dummy: Check card index validity at probe
core-osv · Original sourcePublished 4 Sept 2026, 15:13 UTC
In the Linux kernel, the following vulnerability has been resolved: ALSA: dummy: Check card index validity at probe snd_dummy_probe() blindly trusts that the given devptr->id value is within the proper card index range. It's OK for the devices the driver itself creates at the module probe time, but if the device is bound manually via sysfs interface, this could be -1 as "none", and this leads to OOB access for index[] and other parameters. Add a sanity check for the card index and warn/correct it if it's a value out of the range.
osv:CVE-2026-80812
Kernel
Fixed versions: 5.15.218, 6.1.185, 6.6.154, 6.12.106, 6.18.47, 7.1.11, 7.2.1
Complete source record
{
"id": "6ba84ce5336ee93bbdffbb848ee4b53d302716d5003fd72454efc397d2204d19",
"url": "https://osv.dev/vulnerability/CVE-2026-80812",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALSA: dummy: Check card index validity at probe",
"summary": "In the Linux kernel, the following vulnerability has been resolved: ALSA: dummy: Check card index validity at probe snd_dummy_probe() blindly trusts that the given devptr->id value is within the proper card index range. It's OK for the devices the driver itself creates at the module probe time, but if the device is bound manually via sysfs interface, this could be -1 as \"none\", and this leads to OOB access for index[] and other parameters. Add a sanity check for the card index and warn/correct it if it's a value out of the range.",
"evidence": "osv:CVE-2026-80812",
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"modified": "2026-10-28T02:30:51.287376658Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/b7579e86afcec932e169d10e2d603abed8dd2fdf",
"https://git.kernel.org/stable/c/c9f10a001c243d1f069ebb0e2f4999ad4043a254",
"https://git.kernel.org/stable/c/f20c2c32ec1c5c3526f29a03b487c55a5890996c",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80812.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-80812",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80812.json"
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},
"related_cves": [
{
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"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 520000,
"published_at": "2026-09-04T15:13:32.732+00:00"
}