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Unscored CVE-2022-50847 EUVD-2022-55851GHSA-78f2-hq34-889m

drm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe

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

Vendor: Linux Product: Linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.19 Package: linux-azure-5.3 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-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.11 Package: linux-gcp-6.2 Package: linux-gcp-6.5 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-5.19 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-intel-5.13 Package: linux-intel-iot-realtime 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-6.11 Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 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-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.3 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 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 Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

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

drm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe

During device boot, the HPD interrupt could be triggered before the DRM
subsystem registers it6505 as a DRM bridge. In such cases, the driver
tries to access AUX channel and causes NULL pointer dereference.
Initializing the AUX channel earlier to prevent such error.

Affected products

VendorProductAffectedFixed
Linux Linux 5.18 6.0.16

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.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.1.4-1 —
Debian 13 linux 6.1.4-1 —
Debian 12 linux 6.1.4-1 —
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-riscv +10 No fix yet —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
ReleasePackageFixed inAdvisory
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
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.133.1.150500.6.65.1 SUSE-SU-2026:0317-1
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP5 kernel-default-base 5.14.21-150500.55.133.1.150500.6.65.1 SUSE-SU-2026:0317-1
SLES for SAP 15 SP5 kernel-docs +4 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.133.1.150500.6.65.1 SUSE-SU-2026:0317-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.118.1 SUSE-SU-2026:0263-1
SLE Micro 5.5 kernel-source +1 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_34 1-150500.11.3.1 SUSE-SU-2026:0317-1
SLE HPC 15 SP5 kernel-64kb +5 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLE HPC 15 SP5 kernel-default-base 5.14.21-150500.55.133.1.150500.6.65.1 SUSE-SU-2026:0317-1

Advisories 5

References