Unscored CVE-2022-50875 EUVD-2022-55921GHSA-7394-w6hr-wqhw

of: overlay: fix null pointer dereferencing in find_dup_cset_node_entry() and find_dup_cset_prop()

Published Dec 30, 2025 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-fips Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-6.11 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-6.11 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-6.11 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.4 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.11 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-nvidia Package: linux-nvidia-6.11 Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-tegra-5.15 Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.11 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.14 Package: linux-riscv-6.5 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

of: overlay: fix null pointer dereferencing in find_dup_cset_node_entry() and find_dup_cset_prop()

When kmalloc() fail to allocate memory in kasprintf(), fn_1 or fn_2 will
be NULL, and strcmp() will cause null pointer dereference.

Affected products

Vendor	Product	Affected	Fixed
Linux	Linux	5.0	5.4.229

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	5.15.0-1015.17	—
Ubuntu 24.04 LTS	linux-riscv +10	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-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)

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-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	—

Advisories 1

WID-SEC-2025-2941 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Nov 9, 2026

References