Description
A NULL pointer dereference flaw was found in the UNIX protocol in net/unix/diag.c In unix_diag_get_exact in the Linux Kernel. The newly allocated skb does not have sk, leading to a NULL pointer. This flaw allows a local user to crash or potentially cause a denial of service.
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 | 6.1.4-1 | — |
| Debian 13 | linux | 6.1.4-1 | — |
| Debian 12 | linux | 6.1.4-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1014.16 | — |
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-67.74 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1031.35 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1034.41 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1034.41.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1030.37 | — |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1028.33 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1016.21 | — |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1026.29 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1026.31 | — |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1029.34 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1023.23 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1030.36 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1025.27 | — |
| Ubuntu 22.04 LTS | linux-riscv +18 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-144.161 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1097.105 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1031.35~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1104.110 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1034.41~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1059.65 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1101.110 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1030.37~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1065.69 | — |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1016.21~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-67.74~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1045.50 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1026.31~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1013.15 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1087.93 | — |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1014.14~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1094.103 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1030.36~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1081.92 | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1030.34~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-xilinx-zynqmp | 5.4.0-1022.26 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1097.105~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1104.110~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1101.110~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-144.161~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1045.50~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1094.103~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1081.92~18.04.1 | — |
Show 4 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 | 5.15.0-1022.27 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1033.36 | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1099.107+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1104.110+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1073.82 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1101.110+fips1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | kernel-rt +12 | 5.14.0-70.75.1.rt21.146.el9_0 | RHSA-2023:5603 |
| RHEL 9.0 EUS | perf +29 | 5.14.0-70.75.1.el9_0 | RHSA-2023:5604 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.7.1 | SUSE-SU-2024:4364-1, SUSE-SU-2023:2871-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.3.1 | SUSE-SU-2024:3983-1, SUSE-SU-2023:2646-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.7.1.150500.6.2.5 | SUSE-SU-2024:4364-1, SUSE-SU-2023:2871-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.60.1 | SUSE-SU-2024:4131-1, SUSE-SU-2023:1897-1 |
| SLES 15 SP4 | kernel-azure +2 | 5.14.21-150400.14.43.1 | SUSE-SU-2023:1802-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2024:4131-1, SUSE-SU-2023:1897-1 |
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.118.1 | SUSE-SU-2024:4140-1, SUSE-SU-2023:1811-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2024:4140-1, SUSE-SU-2023:1811-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-150200.24.148.1.150200.9.71.1 | SUSE-SU-2024:4103-1, SUSE-SU-2023:1800-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2024:4103-1, SUSE-SU-2023:1800-1 |
Show 25 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.141.1.150400.24.68.2 | SUSE-SU-2024:4131-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.141.1 | SUSE-SU-2024:4131-1 |
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2024:4140-1, SUSE-SU-2023:1811-1 |
| SLES for SAP 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.118.1 | SUSE-SU-2024:4140-1, 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-2024:4103-1, SUSE-SU-2023:1800-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2024:4103-1, SUSE-SU-2023:1800-1 |
| 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 Micro 5.5 | kernel-default | 5.14.21-150500.55.88.1 | SUSE-SU-2024:4364-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.88.1.150500.6.39.4 | SUSE-SU-2024:4364-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.76.1 | SUSE-SU-2024:3985-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.60.1 | SUSE-SU-2024:4131-1, SUSE-SU-2023:1897-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2024:4131-1, SUSE-SU-2023:1897-1 |
| SLE Micro 5.4 | kernel-rt | 5.14.21-150400.15.23.1 | SUSE-SU-2024:4082-1, SUSE-SU-2023:1992-1 |
| SLE Micro 5.4 | kernel-source-rt | 5.14.21-150400.15.100.1 | SUSE-SU-2024:4082-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.60.1 | SUSE-SU-2024:4131-1, SUSE-SU-2023:1897-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2024:4131-1, SUSE-SU-2023:1897-1 |
| SLE Micro 5.3 | kernel-rt | 5.14.21-150400.15.23.1 | SUSE-SU-2024:4082-1, SUSE-SU-2023:1992-1 |
| SLE Micro 5.3 | kernel-source-rt | 5.14.21-150400.15.100.1 | SUSE-SU-2024:4082-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.118.1 | SUSE-SU-2024:4140-1, 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-2024:4140-1, SUSE-SU-2023:1811-1 |
| SLE Micro 5.2 | kernel-rt | 5.3.18-150300.124.1 | SUSE-SU-2024:4081-1, SUSE-SU-2023:1892-1 |
| SLE Micro 5.2 | kernel-source-rt | 5.3.18-150300.191.1 | SUSE-SU-2024:4081-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.118.1 | SUSE-SU-2024:4140-1, 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-2024:4140-1, SUSE-SU-2023:1811-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-150300.124.1 | SUSE-SU-2024:4081-1, SUSE-SU-2023:1892-1 |
| SLE Micro 5.1 | kernel-source-rt | 5.3.18-150300.191.1 | SUSE-SU-2024:4081-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.7.1 | SUSE-SU-2024:4364-1, SUSE-SU-2023:2871-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_22 | 1-150500.11.3.1 | SUSE-SU-2024:3985-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_1 | 1-150500.11.7.1 | SUSE-SU-2023:2871-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_21 +1 | 1-150500.11.5.1 | SUSE-SU-2024:4364-1, SUSE-SU-2023:2809-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.60.1 | SUSE-SU-2024:4131-1, SUSE-SU-2023:1897-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4-RT_Update_6 | 1-150400.1.3.3 | SUSE-SU-2023:1992-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_11 | 1-150400.9.3.2 | SUSE-SU-2023:1897-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_33 | 1-150400.9.5.1 | SUSE-SU-2024:4131-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.118.1 | SUSE-SU-2024:4140-1, SUSE-SU-2023:1811-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_31 +1 | 1-150300.7.3.1 | SUSE-SU-2024:4140-1, SUSE-SU-2023:1811-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-150200.24.148.1 | SUSE-SU-2024:4103-1, SUSE-SU-2023:1800-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_35 +1 | 1-150200.5.3.1 | SUSE-SU-2024:4103-1, SUSE-SU-2023:1800-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.141.1 | SUSE-SU-2024:4131-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.141.1.150400.24.68.2 | SUSE-SU-2024:4131-1 |
| SLE HPC 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.118.1 | SUSE-SU-2024:4140-1, 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-2024:4140-1, 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-2024:4103-1, SUSE-SU-2023:1800-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2024:4103-1, SUSE-SU-2023:1800-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.5.1 | SUSE-SU-2024:3985-1, SUSE-SU-2023:2809-1 |
| SUSE Real Time Module 15 SP4 | kernel-rt +3 | 5.14.21-150400.15.23.1 | SUSE-SU-2023:1992-1 |
| SUSE Real Time Module 15 SP3 | kernel-rt +3 | 5.3.18-150300.124.1 | SUSE-SU-2023:1892-1 |
| SUSE Manager Server 4.3 | kernel-default-base | 5.14.21-150400.24.141.1.150400.24.68.2 | SUSE-SU-2024:4131-1 |
| SUSE Manager Server 4.3 | kernel-syms +3 | 5.14.21-150400.24.141.1 | SUSE-SU-2024:4131-1 |
| 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 4.3 | kernel-default-base | 5.14.21-150400.24.141.1.150400.24.68.2 | SUSE-SU-2024:4131-1 |
| SUSE Manager Proxy 4.3 | kernel-syms +2 | 5.14.21-150400.24.141.1 | SUSE-SU-2024:4131-1 |
| 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-2024:4140-1, 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-2024:4140-1, 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 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.7.1 | SUSE-SU-2023:2871-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.3.1 | SUSE-SU-2024:3983-1, SUSE-SU-2023:2646-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.7.1.150500.6.2.5 | SUSE-SU-2023:2871-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.5.1 | SUSE-SU-2024:3985-1, SUSE-SU-2023:2809-1 |
| openSUSE Leap 15.4 | dtb-aarch64 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1897-1, SUSE-SU-2023:1811-1 |
| openSUSE Leap 15.4 | kernel-64kb +9 | 5.14.21-150400.24.60.1 | SUSE-SU-2023:1897-1 |
| openSUSE Leap 15.4 | kernel-azure +2 | 5.14.21-150400.14.43.1 | SUSE-SU-2023:1802-1 |
| openSUSE Leap 15.4 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2023:1897-1 |
| openSUSE Leap 15.4 | kernel-rt +3 | 5.14.21-150400.15.23.1 | SUSE-SU-2023:1992-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | kernel-rt | 5.14.21-150500.13.76.1 | SUSE-SU-2024:3985-1 |
| openSUSE Leap Micro 5.3 | kernel-default | 5.14.21-150400.24.60.1 | SUSE-SU-2023:1897-1 |
| openSUSE Leap Micro 5.3 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2023:1897-1 |
| openSUSE Leap Micro 5.3 | kernel-rt | 5.14.21-150400.15.23.1 | SUSE-SU-2023:1992-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.111.1-1 | — |
Advisories 20
- RHSA-2023:5604 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:5603 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- SUSE-SU-2024:3985-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4081-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4103-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2646-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1992-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4140-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4131-1 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-2023:2871-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4364-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4082-1 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-2023:2809-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1897-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3983-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1802-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2023:1892-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-0893 Linux Kernel: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Dec 17, 2024