Description
A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | kernel | unknown | — |
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 | 5.15.15-1 | — |
| Debian 13 | linux | 5.15.15-1 | — |
| Debian 12 | linux | 5.15.15-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-105.119 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1069.73 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1073.76 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1032.35 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1068.72 | — |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1066.69 | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1037.38 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1018.20 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1059.62 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1067.72 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1056.63 | — |
| Ubuntu 20.04 LTS | linux-riscv +23 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-173.182 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1124.133 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1069.73~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1134.147 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1073.76~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-dell300x | 4.15.0-1038.43 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1119.133 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1068.72~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-105.119~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1018.20~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1110.113 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1090.99 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1067.72~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1056.63~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1106.113 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1123.132 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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-updates 20.04 LTS | linux-aws-fips | 5.4.0-1069.73+fips2 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1073.76+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1046.52 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1067.71~20.04.1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2064.67 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2046.50 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1081.90 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2029.32 | — |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1124.133~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1134.147~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1119.133~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-173.182~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1090.99~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1134.147~14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-372.9.1.rt7.166.el8 | RHSA-2022:1975 |
| RHEL 8 | perf +26 | 4.18.0-372.9.1.el8 | RHSA-2022:1988 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-150200.24.148.1.150200.9.71.1 | SUSE-SU-2023:1800-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2023:1800-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-150100.197.142.1 | SUSE-SU-2023:1848-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.130.1 | SUSE-SU-2023:1801-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.156.1 | SUSE-SU-2023:1803-1 |
| SLES 12 SP4 | drbd | 9.0.14+git.62f906cf-4.26.2 | SUSE-SU-2023:2232-1 |
| SLES 12 SP4 | kernel-syms +2 | 4.12.14-95.125.1 | SUSE-SU-2023:2232-1 |
Show 23 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SLES for SAP 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-150200.24.148.1.150200.9.71.1 | SUSE-SU-2023:1800-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2023:1800-1 |
| SLES for SAP 15 SP1 | kernel-docs +4 | 4.12.14-150100.197.142.1 | SUSE-SU-2023:1848-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.130.1 | SUSE-SU-2023:1801-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.156.1 | SUSE-SU-2023:1803-1 |
| SLE Real Time 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SLE Real Time 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.121.1 | SUSE-SU-2023:1894-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SLE Micro 5.2 | kernel-rt | 5.3.18-150300.124.1 | SUSE-SU-2023:1892-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-150300.124.1 | SUSE-SU-2023:1892-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_31 | 1-150300.7.3.1 | SUSE-SU-2023:1811-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-150200.24.148.1 | SUSE-SU-2023:1800-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_35 | 1-150200.5.3.1 | SUSE-SU-2023:1800-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-150100.197.142.1 | SUSE-SU-2023:1848-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_39 | 1-150100.3.5.1 | SUSE-SU-2023:1848-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.156.1 | SUSE-SU-2023:1803-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_42 | 1-8.3.1 | SUSE-SU-2023:1803-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.125.1 | SUSE-SU-2023:2232-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_35 | 1-6.5.1 | SUSE-SU-2023:2232-1 |
| SLE HPC 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-150200.24.148.1.150200.9.71.1 | SUSE-SU-2023:1800-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2023:1800-1 |
| SLE HPC 15 SP1 | kernel-docs +4 | 4.12.14-150100.197.142.1 | SUSE-SU-2023:1848-1 |
| SUSE Real Time Module 15 SP3 | kernel-rt +3 | 5.3.18-150300.124.1 | SUSE-SU-2023:1892-1 |
| SUSE OpenStack Cloud Crowbar 9 | kernel-syms +2 | 4.12.14-95.125.1 | SUSE-SU-2023:2232-1 |
| SUSE OpenStack Cloud 9 | kernel-syms +2 | 4.12.14-95.125.1 | SUSE-SU-2023:2232-1 |
| SUSE Manager Server 4.2 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SUSE Manager Server 4.2 | kernel-source +3 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SUSE Manager Proxy 4.2 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SUSE Manager Proxy 4.2 | kernel-source +2 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +6 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SUSE Enterprise Storage 7 | kernel-default-base | 5.3.18-150200.24.148.1.150200.9.71.1 | SUSE-SU-2023:1800-1 |
| SUSE Enterprise Storage 7 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2023:1800-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | dtb-aarch64 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| openSUSE Leap 15.4 | kernel-debug +4 | 4.12.14-150100.197.142.1 | SUSE-SU-2023:1848-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | kernel-livepatch-4.14.262-200.489 | 1.0-0.amzn2 | ALAS2-2022-1749 |
| Amazon Linux 2 | perf +8 | 4.14.262-200.489.amzn2 | ALAS2-2022-1749 |
Advisories 13
- RHSA-2022:1988 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2022:1975 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- WID-SEC-2024-0794 Dell ECS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- SUSE-SU-2023:1801-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1800-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1894-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1811-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1803-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1848-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2232-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0834 Linux Kernel: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Nov 6, 2025
- ALAS2-2022-1749 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 19, 2025
- SUSE-SU-2023:1892-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025