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Vulnerability · Published Aug 26, 2026 · Assigned by Linux

CVE-2026-80553s390/vfio_ccw: Cancel existing workqueues

High 8.8

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 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.1%top 97.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Cancel existing workqueues The initialization of the io_work and crw_work workqueues begs the question of whether they should be un-initialized. Add the corresponding cleanup tags in _release_dev to ensure work isn't dispatched after the private struct is free'd.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:9kernel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-debug5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-debug-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-debug-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-debug-modules5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-devel-matched5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-modules5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-modules-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-64k-modules-extra5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-abi-stablelists5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-cross-headers5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-debug5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-debug-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-debug-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-debug-devel-matched5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-debug-modules5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-debug-modules-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-debug-modules-extra5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-debug-uki-virt5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-devel-matched5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-doc5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-headers5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-modules5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-modules-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-modules-extra5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-debug5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-modules5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-debug5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-debug-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-debug-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-debug-modules5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-modules5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-modules-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-rt-modules-extra5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-tools5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-tools-libs5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-tools-libs-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-uki-virt5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-uki-virt-addons5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-zfcpdump5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-zfcpdump-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-zfcpdump-devel5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-zfcpdump-modules5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9libperf5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9perf5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9python3-perf5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9rtla5.14.0-687.66.1.el9_8ALSA-2026:95370
AlmaLinux:9rv5.14.0-687.66.1.el9_8ALSA-2026:95370
Debian:12linux6.1.187-1DEBIAN-CVE-2026-80553
Debian:13linux6.12.105-1DEBIAN-CVE-2026-80553
Debian:14linux7.1.10-1DEBIAN-CVE-2026-80553
Debian:12linux-6.126.12.107-1~deb12u1DEBIAN-CVE-2026-80553
Rocky Linux:9kernel0:5.14.0-687.66.1.el9_8RLSA-2026:95370
Ubuntu:22.04:LTSlinux5.15.0-202.212UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-aws5.15.0-1119.126UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-azure5.15.0-1125.134UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1124.133UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-gcp5.15.0-1120.130UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-gke5.15.0-1115.121UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1102.110UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-ibm5.15.0-1113.117UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1114.120UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-kvm5.15.0-1111.116UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-197.207UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1114.115UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1070.72UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1036.39UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1059.59UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-oracle5.15.0-1116.122UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-80553
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-80553
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-80553
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-80553

Affected products (as reported)

VendorProductVersions
Linux Linux e5f84dbaea59b4f712dac428c337528b70e1c533 – before 87d569cb35a541b31a184faf982540694d4c9a89e5f84dbaea59b4f712dac428c337528b70e1c533 – before 7492ca2d0c5d59add01e267be9f5a6eeb8076fd7e5f84dbaea59b4f712dac428c337528b70e1c533 – before b94b28c1f0fae53b2f2d6180ae6442c9a1558f67e5f84dbaea59b4f712dac428c337528b70e1c533 – before e868ea8be0bc88c6982f48ecf3259d98afd884aee5f84dbaea59b4f712dac428c337528b70e1c533 – before dc47a98abe6714577a25224534dbd356051097a3e5f84dbaea59b4f712dac428c337528b70e1c533 – before b7ae0f7993867d009a4b554fc1d6d451c10580a0e5f84dbaea59b4f712dac428c337528b70e1c533 – before 77f5e888d2e607a0b3141fb95091ad6ef1cca9a2e5f84dbaea59b4f712dac428c337528b70e1c533 – before 79c60b2c61105368dcc8444eb45847e21734f7c4
Linux Linux 4.12

References