CVE-2026-43126
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: mixer: oss: Add card disconnect checkpoints ALSA OSS mixer layer calls the kcontrol ops rather individually, and pending calls might be not always caught at disconnecting the device. For avoiding the potential UAF scenarios, add sanity checks of the card disconnection at each entry point of OSS mixer accesses. The rwsem is taken just before that check, hence the rest context should be covered by that properly.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-05-06 12:16:29.597000
Last modified
2026-10-30 13:18:46.720000
View original CVE JSON
{
"id": "CVE-2026-43126",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-05-06T12:16:29.597",
"lastModified": "2026-10-30T13:18:46.720",
"vulnStatus": "Modified",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: mixer: oss: Add card disconnect checkpoints\n\nALSA OSS mixer layer calls the kcontrol ops rather individually, and\npending calls might be not always caught at disconnecting the device.\n\nFor avoiding the potential UAF scenarios, add sanity checks of the\ncard disconnection at each entry point of OSS mixer accesses. The\nrwsem is taken just before that check, hence the rest context should\nbe covered by that properly."
}
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"baseSeverity": "HIGH",
"attackVector": "LOCAL",
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"privilegesRequired": "LOW",
"userInteraction": "NONE",
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"type": "Primary",
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