Description
network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | — | — |
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 | 5.18.14-1 | — |
| Debian 13 | linux | 5.18.14-1 | — |
| Debian 12 | linux | 5.18.14-1 | — |
| Debian 11 | linux | 5.10.127-2 | DSA-5191-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | xen | No fix yet | — |
| Ubuntu 26.04 LTS | xen | No fix yet | — |
| Ubuntu 25.10 | xen | No fix yet | — |
| Ubuntu 24.04 LTS | xen +1 | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-48.54 | USN-5624-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1020.24 | USN-5624-1 |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1020.25 | USN-5624-1 |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1024.30.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1018.24 | USN-5633-1 |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1016.19 | USN-5633-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1003.5 | USN-5635-1 |
| Ubuntu 22.04 LTS | linux-ibm +1 | 5.15.0-1015.17 | USN-5683-1, USN-5633-1 |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1016.21 | USN-5655-1 |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1018.22 | USN-5624-1 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1007.7 | — |
| Ubuntu 22.04 LTS | linux-oem-5.17 | 5.17.0-1024.25 | USN-5773-1 |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1018.23 | USN-5640-1 |
| Ubuntu 22.04 LTS | linux-riscv | 5.15.0-1019.22 | — |
| Ubuntu 22.04 LTS | xen +2 | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1020.24~20.04.1 | USN-5624-1 |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1020.25~20.04.1 | USN-5624-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1018.24~20.04.1 | USN-5644-1 |
| Ubuntu 20.04 LTS | linux-gke-5.15 | 5.15.0-1016.19~20.04.1 | USN-5648-1 |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-48.54~20.04.1 | USN-5623-1 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1016.21~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oem-5.14 | 5.14.0-1055.62 | USN-5789-1 |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1018.23~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1019.22~20.04.1 | — |
| Ubuntu 20.04 LTS | xen +23 | No fix yet | — |
| Ubuntu 18.04 LTS | xen +14 | No fix yet | — |
| Ubuntu 16.04 LTS | xen +1 | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1021.21 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.0.0-284.11.1.el9_2 | RHSA-2023:2458 |
| RHEL 9 | kernel-rt +14 | 5.14.0-284.11.1.rt14.296.el9_2 | RHSA-2023:2148 |
| RHEL 9 | perf +48 | 5.14.0-284.11.1.el9_2 | RHSA-2023:2458 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | bpftool | 7.0.0-284.11.1.el9_2 | ALSA-2023:2458 |
| AlmaLinux 9 | kernel-rt +13 | 5.14.0-284.11.1.rt14.296.el9_2 | ALSA-2023:2148 |
| AlmaLinux 9 | perf +45 | 5.14.0-284.11.1.el9_2 | ALSA-2023:2458 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.11.1 | SUSE-SU-2022:2520-1 |
| SLES 15 SP4 | kernel-azure +2 | 5.14.21-150400.14.7.1 | SUSE-SU-2022:2615-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.11.1.150400.24.3.6 | SUSE-SU-2022:2520-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.11.1 | SUSE-SU-2022:2520-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_0 | 4-150400.4.9.3 | SUSE-SU-2022:2854-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_1 | 1-150400.9.5.3 | SUSE-SU-2022:2520-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | dtb-aarch64 +10 | 5.14.21-150400.24.11.1 | SUSE-SU-2022:2520-1 |
| openSUSE Leap 15.4 | kernel-azure +2 | 5.14.21-150400.14.7.1 | SUSE-SU-2022:2615-1 |
| openSUSE Leap 15.4 | kernel-default-base | 5.14.21-150400.24.11.1.150400.24.3.6 | SUSE-SU-2022:2520-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.15 | xen | 4.15.4-r0 | — |
| Alpine v3.14 | xen | 4.15.4-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.10-15.42 | 1.0-0.amzn2023 | ALAS2023-2023-070 |
| Amazon Linux 2023 | perf +12 | 6.1.10-15.42.amzn2023 | ALAS2023-2023-070 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.67.1-4 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.0.0-284.11.1.el9_2 | ELSA-2023-2458 |
| Oracle Linux 9 | perf +25 | 5.14.0-284.11.1.el9_2 | ELSA-2023-2458 |
Advisories 21
- ALSA-2023:2458 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:2148 Important: kernel-rt security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- USN-5773-1 linux-oem-5.17 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5789-1 linux-oem-5.14 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5683-1 linux-ibm vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- RHSA-2023:2458 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:2148 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- USN-5624-1 linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-kvm, linux-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5635-1 linux-gkeop vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5640-1 linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5644-1 linux-gcp-5.15 vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5655-1 linux-intel-iotg vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5648-1 linux-gke-5.15 vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5633-1 linux-gcp, linux-gke, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5623-1 linux-hwe-5.15, linux-lowlatency-hwe-5.15 vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- DSA-5191-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2022:2520-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:2615-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:2854-1 Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP4) SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2023-070 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 10, 2024
- ELSA-2023-2458 Important: kernel security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 15, 2023