Vulnerability · Published Apr 1, 2025 · Assigned by Linux
CVE-2025-21966dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature
High 7.8
In plain English
A high-severity out-of-bounds write 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 12% 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 88.5% 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: dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature Fix memory corruption due to incorrect parameter being passed to bio_init
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | kernel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-debug | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-debug-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-debug-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-debug-devel-matched | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-debug-modules | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-debug-modules-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-debug-modules-extra | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-devel-matched | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-modules | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-modules-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-64k-modules-extra | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-abi-stablelists | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-cross-headers | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-debug | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-debug-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-debug-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-debug-devel-matched | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-debug-modules | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-debug-modules-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-debug-modules-extra | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-debug-uki-virt | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-devel-matched | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-doc | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-headers | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-modules | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-modules-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-modules-extra | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-debug | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-debug-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-debug-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules-extra | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-modules | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-modules-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-64k-modules-extra | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-debug | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-debug-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-debug-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-debug-kvm | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-debug-modules | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-debug-modules-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-debug-modules-extra | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-kvm | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-modules | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-modules-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-rt-modules-extra | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-tools | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-tools-libs | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-tools-libs-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-uki-virt | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-uki-virt-addons | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-zfcpdump | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-zfcpdump-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-zfcpdump-devel | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-zfcpdump-devel-matched | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-zfcpdump-modules | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-zfcpdump-modules-core | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | kernel-zfcpdump-modules-extra | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | libperf | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | perf | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | python3-perf | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | rtla | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| AlmaLinux:9 | rv | 5.14.0-570.17.1.el9_6 | ALSA-2025:7903 |
| Debian:13 | linux | 6.12.20-1 | DEBIAN-CVE-2025-21966 |
| Debian:14 | linux | 6.12.20-1 | DEBIAN-CVE-2025-21966 |
| Rocky Linux:10 | kernel | 0:6.12.0-55.12.1.el10_0 | RLSA-2025:7956 |
| Ubuntu:24.04:LTS | linux | 6.8.0-84.84 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1039.41 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1039.41~22.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1038.44 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | 6.11.0-1018.18~24.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1036.42~22.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | 6.8.0-1025.27 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1040.42 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | 6.11.0-1016.16~24.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1040.42~22.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1036.40 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1023.25 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | 6.11.0-28.28~24.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-85.85~22.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1037.37 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1037.37~22.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-intel | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-84.84.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | 6.11.0-1015.16~24.04.2 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-84.84.1~22.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1039.42 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 | 6.11.0-1012.12 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1039.42~22.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1039.42.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra | 6.8.0-1010.10 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | 6.11.0-1024.24 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1037.38 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1037.38~22.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1039.43 | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | 6.8.0-84.84~22.04.1 | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2025-21966 |
| Ubuntu:24.04:LTS | linux-xilinx | 6.8.0-1018.19 | UBUNTU-CVE-2025-21966 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 1d9a943898533e83f20370c0e1448d606627522e – before 818330f756f3800c37d738bd36bce60eac9499381d9a943898533e83f20370c0e1448d606627522e – before 5a87e46da2418c57b445371f5ca0958d5779ba5f1d9a943898533e83f20370c0e1448d606627522e – before da070843e153471be4297a12fdaa64023276f40e1d9a943898533e83f20370c0e1448d606627522e – before 57e9417f69839cb10f7ffca684c38acd28ceb57b |
| Linux | Linux | 6.5 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H