Description
In the Linux kernel, the following vulnerability has been resolved:
ipv4: prevent potential spectre v1 gadget in ip_metrics_convert()
if (!type)
continue;
if (type > RTAX_MAX)
return -EINVAL;
...
metrics[type - 1] = val;
@type being used as an array index, we need to prevent
cpu speculation or risk leaking kernel memory content.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 4.3 | 4.19.272 |
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 | 6.1.11-1 | — |
| Debian 13 | linux | 6.1.11-1 | — |
| Debian 12 | linux | 6.1.11-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1015.17 | — |
| Ubuntu 24.04 LTS | linux-realtime +1 | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-70.77 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1034.38 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1036.43 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1036.43.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1032.40 | — |
| Ubuntu 22.04 LTS | linux-gke +1 | 5.15.0-1031.36 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1018.23 | — |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1028.31 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1028.33 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1023.23 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1033.39 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1027.29 | — |
| Ubuntu 22.04 LTS | linux-riscv +31 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-147.164 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1100.108 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1034.38~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1106.112 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1036.43~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1062.68 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1103.112 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1032.40~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-70.77~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1047.52 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1030.35~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1017.18 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1089.95 | — |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1014.14~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1099.108 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1033.39~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1083.94 | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1031.35~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-xilinx-zynqmp | 5.4.0-1024.28 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-209.220 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1154.167 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1100.108~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1163.178 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1106.112~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1148.164 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1103.112~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-147.164~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1047.52~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1138.143 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1117.128 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1099.108~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1083.94~18.04.1 | — |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1024.29 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1036.39 | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1100.108+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1106.112+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1075.84 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1103.112+fips1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2093.99 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2072.78 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1109.120 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2056.61 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux +2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1154.167~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1163.178~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1148.164~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-209.220~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1117.128~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-aws +1 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1163.178~14.04.1 | — |
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 |
| RHEL 8 | perf +26 | 4.18.0-513.5.1.el8_9 | RHSA-2023:7077 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | kernel-syms +2 | 4.12.14-122.255.1 | SUSE-SU-2025:1293-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.255.1 | SUSE-SU-2025:1293-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_67 | 1-8.5.1 | SUSE-SU-2025:1293-1 |
Advisories 4
- RHSA-2023:7077 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:6583 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- WID-SEC-2025-0649 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 3, 2026
- SUSE-SU-2025:1293-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.kernel.org/stable/c/ef050cf5fb70d995a0d03244e25179b7c66a924a
- https://git.kernel.org/stable/c/746db9ec1e672eee13965625ddac0d97e16fa20c
- https://git.kernel.org/stable/c/34c6142f0df9cd75cba5a7aa9df0960d2854b415
- https://git.kernel.org/stable/c/d50e7348b44f1e046121ff5be01b7fb6978a1149
- https://git.kernel.org/stable/c/6850fe301d015a7d2012d1de8caf43dafb7cc2f6
- https://git.kernel.org/stable/c/1d1d63b612801b3f0a39b7d4467cad0abd60e5c8