Description
In the Linux kernel, the following vulnerability has been resolved:
cxl: Fix refcount leak in cxl_calc_capp_routing
of_get_next_parent() returns a node pointer with refcount incremented,
we should use of_node_put() on it when not need anymore.
This function only calls of_node_put() in normal path,
missing it in the error path.
Add missing of_node_put() to avoid refcount leak.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 4.12 | 4.14.303 |
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.
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-intel +9 | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-69.76 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1033.37 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1035.42 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1035.42.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1031.38 | — |
| Ubuntu 22.04 LTS | linux-gke +1 | 5.15.0-1030.35 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1017.22 | — |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1027.30 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1027.32 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1023.23 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1032.38 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1026.28 | — |
| Ubuntu 22.04 LTS | linux-riscv +32 | 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 | 5.15.0-1033.37~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1104.110 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1035.42~20.04.1 | — |
| 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 | 5.15.0-1031.38~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-69.76~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1045.50 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1027.32~20.04.1 | — |
| 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 | 5.15.0-1032.38~20.04.1 | — |
| 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 | 4.15.0-208.220 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1153.166 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1097.105~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1162.177 | — |
| 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-4.15 | 4.15.0-1147.163 | — |
| 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-kvm | 4.15.0-1137.142 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1116.127 | — |
| 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 8 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 | 5.15.0-1023.28 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1034.37 | — |
| 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 | 5.4.0-1099.107+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 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2092.98 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2071.77 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1108.119 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2055.60 | — |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1153.166~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1162.177~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1147.163~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-208.219~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1116.127~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1162.177~14.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | kernel-syms +2 | 4.12.14-122.275.1 | SUSE-SU-2025:03614-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.275.1 | SUSE-SU-2025:03614-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_73 | 1-8.3.1 | SUSE-SU-2025:03614-1 |
Advisories 3
- WID-SEC-2025-2053 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 9, 2026
- WID-SEC-2026-0349 Dell Avamar und NetWorker: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- SUSE-SU-2025:03614-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.kernel.org/stable/c/c9bebc503881c1391f6c4f820134884adecf1519
- https://git.kernel.org/stable/c/ee870f72465015327ad96204b0e92450d04870cd
- https://git.kernel.org/stable/c/f2d60f6ba173cded65081cee690b67802395a479
- https://git.kernel.org/stable/c/81c8bbf5b2b5f0c8030fff1716c00849cda8571a
- https://git.kernel.org/stable/c/6a310e8db5409676b4b3e6c1f54dff174e4fd04d
- https://git.kernel.org/stable/c/651e8bc9d0418c20a1989b7c078c64c2a6346fa3
- https://git.kernel.org/stable/c/2d7b6580384e6d65419933ddc525bd176095da54
- https://git.kernel.org/stable/c/1d09697ff22908ae487fc8c4fbde1811732be523