Bug 2426170 (CVE-2022-50847) - CVE-2022-50847 kernel: drm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe
Summary: CVE-2022-50847 kernel: drm/bridge: it6505: Initialize AUX channel in it6505_i...
Keywords:
Status: NEW
Alias: CVE-2022-50847
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-30 13:13 UTC by OSIDB Bzimport
Modified: 2025-12-31 04:12 UTC (History)
0 users

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Description OSIDB Bzimport 2025-12-30 13:13:53 UTC 
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.
Comment 1 Alexander B 2025-12-31 04:09:19 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123021-CVE-2022-50847-6766@gregkh/T
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