01 Record
CVE-2025-21966
dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature
HighPUBLISHEDCNA: Linux
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
02 Description
dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.20% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 9.8% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2025-04-01 15:47Z1 YR AGO
- Last updated
- 2026-08-05 11:55Z2 MO AGO
- Reserved
- 2024-12-29
- Assigning CNA
- Linux
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- 4e0c7b509e6b6b5e9ec2f135767aeb94727d20d897bfead122bbd8e454588440
05 Affected products
VendorProductVersionsPlatforms
LinuxLinux1d9a943898533e83f20370c0e1448d606627522e to < 818330f756f3800c37d738bd36bce60eac949938, 1d9a943898533e83f20370c0e1448d606627522e to < 5a87e46da2418c57b445371f5ca0958d5779ba5f, 1d9a943898533e83f20370c0e1448d606627522e to < da070843e153471be4297a12fdaa64023276f40e, 1d9a943898533e83f20370c0e1448d606627522e to < 57e9417f69839cb10f7ffca684c38acd28ceb57b, 6.5—
06 References
- git.kernel.orghttps://git.kernel.org/stable/c/818330f756f3800c37d738bd36bce60eac949938
- git.kernel.orghttps://git.kernel.org/stable/c/5a87e46da2418c57b445371f5ca0958d5779ba5f
- git.kernel.orghttps://git.kernel.org/stable/c/da070843e153471be4297a12fdaa64023276f40e
- git.kernel.orghttps://git.kernel.org/stable/c/57e9417f69839cb10f7ffca684c38acd28ceb57b
07 Fixed in
AlmaLinux 9
- kernel Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-devel-matched Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-modules Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-modules-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-modules-extra Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-devel-matched Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-modules Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-modules-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-modules-extra Fixed in 5.14.0-570.17.1.el9_6
- kernel-abi-stablelists Fixed in 5.14.0-570.17.1.el9_6
- kernel-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-cross-headers Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-devel-matched Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-modules Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-modules-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-modules-extra Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-uki-virt Fixed in 5.14.0-570.17.1.el9_6
- kernel-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-devel-matched Fixed in 5.14.0-570.17.1.el9_6
- kernel-doc Fixed in 5.14.0-570.17.1.el9_6
- kernel-headers Fixed in 5.14.0-570.17.1.el9_6
- kernel-modules Fixed in 5.14.0-570.17.1.el9_6
- kernel-modules-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-modules-extra Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-debug Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-debug-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-debug-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-debug-modules Fixed in 5.14.0-570.17.1.el9_6
36 further packages in AlmaLinux 9 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- kernel Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-devel-matched Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-modules Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-modules-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-debug-modules-extra Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-devel-matched Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-modules Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-modules-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-64k-modules-extra Fixed in 5.14.0-570.17.1.el9_6
- kernel-abi-stablelists Fixed in 5.14.0-570.17.1.el9_6
- kernel-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-cross-headers Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-devel-matched Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-modules Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-modules-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-modules-extra Fixed in 5.14.0-570.17.1.el9_6
- kernel-debug-uki-virt Fixed in 5.14.0-570.17.1.el9_6
- kernel-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-devel-matched Fixed in 5.14.0-570.17.1.el9_6
- kernel-doc Fixed in 5.14.0-570.17.1.el9_6
- kernel-headers Fixed in 5.14.0-570.17.1.el9_6
- kernel-modules Fixed in 5.14.0-570.17.1.el9_6
- kernel-modules-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-modules-extra Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-debug Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-debug-core Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-debug-devel Fixed in 5.14.0-570.17.1.el9_6
- kernel-rt-64k-debug-modules Fixed in 5.14.0-570.17.1.el9_6
36 further packages in CloudLinux 9 not shown (first 40 listed).
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.12.20-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 6.12.20-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-azure No fix yet
- linux-azure-5.3 No fix yet
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 No fix yet
- linux-gke-4.15 No fix yet
- linux-gke-5.4 No fix yet
- linux-gkeop-5.4 No fix yet
- linux-hwe No fix yet
- linux-hwe-edge No fix yet
- linux-oem No fix yet
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.8 No fix yet
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.8 No fix yet
- linux-azure-fde No fix yet
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.8 No fix yet
- linux-gke No fix yet
- linux-gke-5.15 No fix yet
- linux-gkeop No fix yet
- linux-gkeop-5.15 No fix yet
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.8 No fix yet
- linux-intel-5.13 No fix yet
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 No fix yet
- linux-oem-5.6 No fix yet
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
- linux-oracle-5.8 No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
- linux-riscv-5.11 No fix yet
- linux-riscv-5.8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-allwinner-5.19 No fix yet
- linux-aws-5.19 No fix yet
- linux-aws-6.2 No fix yet
- linux-aws-6.5 No fix yet
- linux-aws-6.8 Fixed in 6.8.0-1039.41~22.04.1
- linux-azure-5.19 No fix yet
- linux-azure-6.2 No fix yet
- linux-azure-6.5 No fix yet
- linux-azure-6.8 Fixed in 6.8.0-1036.42~22.04.1
- linux-azure-fde-5.19 No fix yet
- linux-azure-fde-6.2 No fix yet
- linux-gcp-5.19 No fix yet
- linux-gcp-6.2 No fix yet
- linux-gcp-6.5 No fix yet
- linux-gcp-6.8 Fixed in 6.8.0-1040.42~22.04.1
- linux-hwe-5.19 No fix yet
- linux-hwe-6.2 No fix yet
- linux-hwe-6.5 No fix yet
- linux-hwe-6.8 Fixed in 6.8.0-85.85~22.04.1
- linux-ibm-6.8 Fixed in 6.8.0-1037.37~22.04.1
- linux-intel-iot-realtime No fix yet
- linux-lowlatency-hwe-5.19 No fix yet
- linux-lowlatency-hwe-6.2 No fix yet
- linux-lowlatency-hwe-6.5 No fix yet
- linux-lowlatency-hwe-6.8 Fixed in 6.8.0-84.84.1~22.04.1
- linux-nvidia-6.2 No fix yet
- linux-nvidia-6.5 No fix yet
- linux-nvidia-6.8 Fixed in 6.8.0-1039.42~22.04.1
- linux-oem-5.17 No fix yet
- linux-oem-6.0 No fix yet
- linux-oem-6.1 No fix yet
- linux-oem-6.5 No fix yet
- linux-oracle-6.5 No fix yet
- linux-oracle-6.8 Fixed in 6.8.0-1037.38~22.04.1
- linux-realtime No fix yet
- linux-riscv No fix yet
- linux-riscv-5.19 No fix yet
- linux-riscv-6.5 No fix yet
- linux-riscv-6.8 Fixed in 6.8.0-84.84~22.04.1
- linux-starfive-5.19 No fix yet
2 further packages in Ubuntu 22.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux Fixed in 6.8.0-84.84
- linux-aws Fixed in 6.8.0-1039.41
- linux-azure Fixed in 6.8.0-1038.44
- linux-azure-6.11 Fixed in 6.11.0-1018.18~24.04.1
- linux-azure-nvidia Fixed in 6.8.0-1025.27
- linux-gcp Fixed in 6.8.0-1040.42
- linux-gcp-6.11 Fixed in 6.11.0-1016.16~24.04.1
- linux-gke Fixed in 6.8.0-1036.40
- linux-gkeop Fixed in 6.8.0-1023.25
- linux-hwe-6.11 Fixed in 6.11.0-28.28~24.04.1
- linux-ibm Fixed in 6.8.0-1037.37
- linux-intel No fix yet
- linux-lowlatency Fixed in 6.8.0-84.84.1
- linux-lowlatency-hwe-6.11 Fixed in 6.11.0-1015.16~24.04.2
- linux-nvidia Fixed in 6.8.0-1039.42
- linux-nvidia-6.11 Fixed in 6.11.0-1012.12
- linux-nvidia-lowlatency Fixed in 6.8.0-1039.42.1
- linux-nvidia-tegra Fixed in 6.8.0-1010.10
- linux-oem-6.11 Fixed in 6.11.0-1024.24
- linux-oem-6.8 No fix yet
- linux-oracle Fixed in 6.8.0-1037.38
- linux-raspi Fixed in 6.8.0-1039.43
- linux-raspi-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
- linux-xilinx Fixed in 6.8.0-1018.19
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 24.04 LTS
- linux-aws-fips Fixed in 6.8.0-1039.41+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 6.8.0-1040.46+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 6.8.0-84.84+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 6.8.0-1040.42+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 22.04 LTS
- linux-realtime-6.8 Fixed in 6.8.1-1034.35~22.04.1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 24.04 LTS
- linux-raspi-realtime Fixed in 6.8.0-2030.31Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 6.8.1-1034.35Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.