CVE-2026-43126

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-05-06 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

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.

Affected Software (8)

VendorProductVersion
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 11ecfba92bdb420456a48da45a756b24d6356f72
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 20c52a70414095447da1be076f492cc7a6dce7cf
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ae583f113d15fa97e5234133c20d09f8e6214e47
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e6645e625480cdf1079a4265f758d13b70721029
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8c097cf736993454acf3f711a3b376d6c7ad8965
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 084d5d44418148662365eced3e126ad1a81ee3e2
Linux Linux 2.6.12
linux linux_kernel 2.6.12 – 6.12.75

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.16%
Raw Score 0.001630
Percentile 5.5%
Date 2026-10-30

EPSS Trend

2026-10-30
0.00163
2026-10-29
0.00163

Intelligence Sources

mitre ref →
nvd ref →