CVE-2026-43126

high

In the Linux kernel, the following vulnerability has been resolved: ALSA: mixer: oss: Add card disconnect checkpoints ALSA OSS mixer layer calls the kcontrol…

Vendor / product: Linux — linux kernel

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.

CVSS

7.8

7.8 (CVSS v3.1)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity source: NVD CVSS v3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

Timeline (UTC)

Published: 2026-05-06 12:16

Modified: 2026-10-30 13:18

NVD status: Modified

Last synced 1 day ago

Verified against the source API 2026-10-30 13:38 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linux / linux_kernel ≥2.6.12 <6.12.75, ≥6.13 <6.18.16, ≥6.19 <6.19.6

Weakness classification (CWE)

NVD-CWE-noinfo

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Patch / mitigation: https://git.kernel.org/stable/c/084d5d44418148662365eced3e126ad1a81ee3e2

Patch / mitigation: https://git.kernel.org/stable/c/8c097cf736993454acf3f711a3b376d6c7ad8965

Patch / mitigation: https://git.kernel.org/stable/c/ae583f113d15fa97e5234133c20d09f8e6214e47

Patch / mitigation: https://git.kernel.org/stable/c/e6645e625480cdf1079a4265f758d13b70721029

References

https://git.kernel.org/stable/c/084d5d44418148662365eced3e126ad1a81ee3e2 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/11ecfba92bdb420456a48da45a756b24d6356f72 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/20c52a70414095447da1be076f492cc7a6dce7cf 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8c097cf736993454acf3f711a3b376d6c7ad8965 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ae583f113d15fa97e5234133c20d09f8e6214e47 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e6645e625480cdf1079a4265f758d13b70721029 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Data sources

NVD CVE API 2.0 — fetched 2026-10-30 13:38 UTC · record ↗

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CVE-2026-43126

Affected products

Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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