Log in Start free

Vulnerability · Published May 6, 2026 · Assigned by Linux

CVE-2026-43126ALSA: mixer: oss: Add card disconnect checkpoints

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 94.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-43126
Debian:13linux6.12.85-1DEBIAN-CVE-2026-43126
Debian:14linux6.19.6-1DEBIAN-CVE-2026-43126
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-43126
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-43126
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-43126
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-43126
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1035.38UBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-43126
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-43126
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43126
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-43126
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-43126
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-43126

Affected products (as reported)

VendorProductVersions
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 11ecfba92bdb420456a48da45a756b24d6356f721da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 20c52a70414095447da1be076f492cc7a6dce7cf1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before ae583f113d15fa97e5234133c20d09f8e6214e471da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before e6645e625480cdf1079a4265f758d13b707210291da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 8c097cf736993454acf3f711a3b376d6c7ad89651da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 084d5d44418148662365eced3e126ad1a81ee3e2
Linux Linux 2.6.12

References