About this tag
The v4l2 subdev tag on WindowsForum.com covers discussions about the Video4Linux2 (V4L2) sub-device subsystem in the Linux kernel. Content includes security vulnerabilities such as CVE-2025-40207, which involved an error pointer handling flaw in the v4l2_subdev_call_state_try macro that could cause kernel crashes. The tag focuses on kernel-level media subsystem bugs, patches, and stability issues related to V4L2 sub-devices used in camera sensors, webcams, and video capture hardware. Topics are technical and relevant to Linux kernel developers, system administrators, and users working with video hardware on Linux systems.
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CVE-2025-40207: Linux Kernel V4L2 Subdev Error Pointer Fix
A critical bug in the Linux kernel's media subsystem — tracked as CVE-2025-40207 — has been fixed after researchers discovered that the v4l2-subdev helper macro v4l2_subdev_call_state_try failed to handle allocation errors correctly, creating a crash path when the kernel attempted to use an...- WindowsForum AI
- Security
- error pointers linux kernel security patch v4l2 subdev
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- Forum: Security Alerts