CVE-2026-64507
x86/bugs: Enable IBPB flush on BPF JIT allocation
02 Description
x86/bugs: Enable IBPB flush on BPF JIT allocation
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.23% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 13.8% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Received. NVD last modified this record on 2026-08-19.
- 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
- 2026-07-25 08:52Z3 MO AGO
- Last updated
- 2026-08-19 16:28Z2 MO AGO
- Reserved
- 2026-07-19
- Assigning CNA
- Linux
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-515Covert Storage ChannelBase
- Data version
- 5.2
- Document digest
- f331a1248bcecec73e4ca7c1366625a7cf83cc346c7af00876c3c08bd226da33
05 Affected products
06 References
- git.kernel.orghttps://git.kernel.org/stable/c/25dbcd31781e2bc3cd63d873af1fcd06f863a126
- git.kernel.orghttps://git.kernel.org/stable/c/cb27f3bf915cc0f20fc0c48da9059304e39ebd35
- git.kernel.orghttps://git.kernel.org/stable/c/9354248fc1c33a844ca1872761f6668b393e8c37
- git.kernel.orghttps://git.kernel.org/stable/c/8a4c8af9ae67eb072d90d1b339f14d27a82bd2a1
- git.kernel.orghttps://git.kernel.org/stable/c/52440e15d9628f8f239373c0f2e5e8f92feea2df
- git.kernel.orghttps://git.kernel.org/stable/c/a3af84b0fa00ead01fcd0e28b5d773ff25990a0d
07 Fixed in
AlmaLinux 9
- kernel Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug-modules Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug-modules-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug-modules-extra Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-modules Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-modules-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-modules-extra Fixed in 5.14.0-687.57.1.el9_8
- kernel-abi-stablelists Fixed in 5.14.0-687.57.1.el9_8
- kernel-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug-modules Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug-modules-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug-modules-extra Fixed in 5.14.0-687.57.1.el9_8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- kernel Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-devel Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-devel-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-modules Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-modules-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-modules-extra Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-devel Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-devel-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-modules Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-modules-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-modules-extra Fixed in 6.12.0-211.65.1.el10_2
- kernel-abi-stablelists Fixed in 6.12.0-211.65.1.el10_2
- kernel-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-cross-headers Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-devel Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-devel-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-modules Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-modules-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-modules-extra Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-uki-virt Fixed in 6.12.0-211.65.1.el10_2
- kernel-devel Fixed in 6.12.0-211.65.1.el10_2
- kernel-devel-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-doc Fixed in 6.12.0-211.65.1.el10_2
- kernel-headers Fixed in 6.12.0-211.65.1.el10_2
- kernel-modules Fixed in 6.12.0-211.65.1.el10_2
- kernel-modules-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-modules-extra Fixed in 6.12.0-211.65.1.el10_2
- kernel-modules-extra-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k-debug Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k-debug-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k-debug-devel Fixed in 6.12.0-211.65.1.el10_2
35 further packages in AlmaLinux 10 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 5.14.0-687.57.1.el9_8
- kernel-64k Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug-modules Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug-modules-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-debug-modules-extra Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-modules Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-modules-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-64k-modules-extra Fixed in 5.14.0-687.57.1.el9_8
- kernel-abi-stablelists Fixed in 5.14.0-687.57.1.el9_8
- kernel-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug-modules Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug-modules-core Fixed in 5.14.0-687.57.1.el9_8
- kernel-debug-modules-extra Fixed in 5.14.0-687.57.1.el9_8
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.
CloudLinux 10
- kernel Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-devel Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-devel-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-modules Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-modules-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-debug-modules-extra Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-devel Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-devel-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-modules Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-modules-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-64k-modules-extra Fixed in 6.12.0-211.65.1.el10_2
- kernel-abi-stablelists Fixed in 6.12.0-211.65.1.el10_2
- kernel-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-cross-headers Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-devel Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-devel-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-modules Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-modules-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-modules-extra Fixed in 6.12.0-211.65.1.el10_2
- kernel-debug-uki-virt Fixed in 6.12.0-211.65.1.el10_2
- kernel-devel Fixed in 6.12.0-211.65.1.el10_2
- kernel-devel-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-doc Fixed in 6.12.0-211.65.1.el10_2
- kernel-headers Fixed in 6.12.0-211.65.1.el10_2
- kernel-modules Fixed in 6.12.0-211.65.1.el10_2
- kernel-modules-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-modules-extra Fixed in 6.12.0-211.65.1.el10_2
- kernel-modules-extra-matched Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k-debug Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k-debug-core Fixed in 6.12.0-211.65.1.el10_2
- kernel-rt-64k-debug-devel Fixed in 6.12.0-211.65.1.el10_2
35 further packages in CloudLinux 10 not shown (first 40 listed).
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 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 12
- linux Fixed in 6.1.187-1
- linux-6.12 Fixed in 6.12.100-1~deb12u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.12.100-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 7.1.4-1
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 No fix yet
- 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 No fix yet
- linux-azure-fde-5.19 No fix yet
- linux-azure-fde-6.2 No fix yet
- linux-azure-fde-6.8 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 No fix yet
- 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 No fix yet
- linux-ibm-6.8 No fix yet
- 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 No fix yet
- linux-nvidia-6.2 No fix yet
- linux-nvidia-6.5 No fix yet
- linux-nvidia-6.8 No fix yet
- 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 No fix yet
- 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 No fix yet
3 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 6.8.0-147.147
- linux-aws Fixed in 6.8.0-1067.70
- linux-aws-6.14 No fix yet
- linux-aws-6.17 No fix yet
- linux-aws-7.0 Fixed in 7.0.0-1012.12~24.04.1
- linux-azure Fixed in 6.8.0-1071.79
- linux-azure-6.11 No fix yet
- linux-azure-6.14 No fix yet
- linux-azure-6.17 No fix yet
- linux-azure-7.0 Fixed in 7.0.0-1014.14~24.04.1
- linux-azure-fde Fixed in 6.8.0-1069.76
- linux-azure-fde-6.14 No fix yet
- linux-azure-fde-6.17 No fix yet
- linux-azure-fde-7.0 Fixed in 7.0.0-1013.13~24.04.1
- linux-azure-nvidia No fix yet
- linux-azure-nvidia-6.14 No fix yet
- linux-gcp Fixed in 6.8.0-1071.79
- linux-gcp-6.11 No fix yet
- linux-gcp-6.14 No fix yet
- linux-gcp-6.17 No fix yet
- linux-gcp-7.0 Fixed in 7.0.0-1011.11~24.04.1
- linux-gke Fixed in 6.8.0-1066.74
- linux-gkeop Fixed in 6.8.0-1052.56
- linux-hwe-6.11 No fix yet
- linux-hwe-6.14 No fix yet
- linux-hwe-6.17 No fix yet
- linux-hwe-7.0 Fixed in 7.0.0-31.31~24.04.1
- linux-ibm Fixed in 6.8.0-1067.68
- linux-lowlatency Fixed in 6.8.0-147.147.1
- linux-lowlatency-hwe-6.11 No fix yet
- linux-nvidia No fix yet
- linux-nvidia-6.11 No fix yet
- linux-nvidia-6.17 No fix yet
- linux-nvidia-7.0 Fixed in 7.0.0-1018.18~24.04.1
- linux-nvidia-lowlatency No fix yet
- linux-nvidia-tegra No fix yet
- linux-oem-6.11 No fix yet
- linux-oem-6.14 No fix yet
- linux-oem-6.17 No fix yet
- linux-oem-6.8 No fix yet
12 further packages in Ubuntu 24.04 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 26.04 LTS
- linux Fixed in 7.0.0-31.31
- linux-aws Fixed in 7.0.0-1012.12
- linux-azure Fixed in 7.0.0-1014.14
- linux-azure-fde Fixed in 7.0.0-1013.13
- linux-gcp Fixed in 7.0.0-1011.11
- linux-gke Fixed in 7.0.0-1006.7
- linux-ibm Fixed in 7.0.0-1013.13
- linux-nvidia Fixed in 7.0.0-1018.18
- linux-nvidia-bos Fixed in 7.0.0-2018.18
- linux-oem-7.0 Fixed in 7.0.0-1013.13
- linux-oracle Fixed in 7.0.0-1011.11
- linux-raspi Fixed in 7.0.0-1019.19
- linux-realtime Fixed in 7.0.0-31.31.1
- linux-riscv Fixed in 7.0.0-31.31.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Nvidia-BlueField 24.04 LTS
- linux-bluefield Fixed in 6.8.0-1033.38
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 6.8.0-1067.70+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 6.8.0-1071.79+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 6.8.0-147.147+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 6.8.0-1071.79+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 No fix yet
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 No fix yet
- linux-realtime Fixed in 6.8.1-1062.63Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime-6.14 No fix yet
- linux-realtime-6.17 No fix yet
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.