Description
An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.3.7-1 | — |
| Debian 13 | linux | 6.3.7-1 | — |
| Debian 12 | linux | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | linux-riscv +20 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.2.0-362.8.1.el9_3 | RHSA-2023:6583 |
| RHEL 9 | rv +64 | 5.14.0-362.8.1.el9_3 | RHSA-2023:6583 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | bpftool | 7.0.0-284.48.1.el9_2 | RHSA-2024:0448 |
| RHEL 9.2 EUS | kernel-rt +14 | 5.14.0-284.48.1.rt14.333.el9_2 | RHSA-2024:0439 |
| RHEL 9.2 EUS | kpatch-patch-5_14_0-284_18_1 | 1-6.el9_2 | RHSA-2024:0381 |
| RHEL 9.2 EUS | kpatch-patch-5_14_0-284_25_1 | 1-5.el9_2 | RHSA-2024:0381 |
| RHEL 9.2 EUS | kpatch-patch-5_14_0-284_30_1 | 1-2.el9_2 | RHSA-2024:0381 |
| RHEL 9.2 EUS | kpatch-patch-5_14_0-284_40_1 | 1-1.el9_2 | RHSA-2024:0381 |
| RHEL 9.2 EUS | perf +48 | 5.14.0-284.48.1.el9_2 | RHSA-2024:0448 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.36.1 | SUSE-SU-2023:4375-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.23.1 | SUSE-SU-2023:4414-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.36.1.150500.6.15.3 | SUSE-SU-2023:4375-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.36.1 | SUSE-SU-2023:4375-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.36.1.150500.6.15.3 | SUSE-SU-2023:4375-1 |
| SLE Micro 5.5 | kernel-rt | 5.14.21-150500.13.24.1 | SUSE-SU-2023:4343-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.36.1 | SUSE-SU-2023:4375-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_1 | 8-150500.2.2 | SUSE-SU-2024:0995-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_5 | 6-150500.2.2 | SUSE-SU-2024:0986-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_7 | 1-150500.11.3.1 | SUSE-SU-2023:4343-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_0 +1 | 9-150500.6.2 | SUSE-SU-2024:1097-1, SUSE-SU-2024:1039-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_2 | 8-150500.2.3 | SUSE-SU-2024:1023-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_5 | 6-150500.2.3 | SUSE-SU-2024:1045-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_7 | 1-150500.11.5.1 | SUSE-SU-2023:4375-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.24.1 | SUSE-SU-2023:4343-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.36.1 | SUSE-SU-2023:4375-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.23.1 | SUSE-SU-2023:4414-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.36.1.150500.6.15.3 | SUSE-SU-2023:4375-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.24.1 | SUSE-SU-2023:4343-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.59-84.139 | 1.0-0.amzn2023 | ALAS2023-2023-422 |
| Amazon Linux 2023 | perf +13 | 6.1.59-84.139.amzn2023 | ALAS2023-2023-422 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.137.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.2.0-362.8.1.el9_3 | ELSA-2023-6583 |
| Oracle Linux 9 | rv +25 | 5.14.0-362.8.1.el9_3 | ELSA-2023-6583 |
Advisories 16
- RHSA-2023:6583 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:0448 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:0439 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:0381 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- SUSE-SU-2024:1039-1 Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1045-1 Security update for the Linux Kernel (Live Patch 5 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1097-1 Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0986-1 Security update for the Linux Kernel RT (Live Patch 5 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4375-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1023-1 Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0995-1 Security update for the Linux Kernel RT (Live Patch 1 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4414-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4343-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2023-2023-422 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jul 3, 2024
- WID-SEC-2023-2526 Linux Kernel: Schwachstelle ermöglicht Privilegieneskalation BSI CERT-Bund (WID) · Apr 2, 2024
- ELSA-2023-6583 Important: kernel security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 12, 2023
References
- RHSA-2023:6583 vendor-advisory
- RHSA-2024:0381 vendor-advisory
- RHSA-2024:0439 vendor-advisory
- RHSA-2024:0448 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-39191 vdb-entry
- RHBZ#2226783 issue-tracking
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-19399/