VYPR
High severity7.8NVD Advisory· Published Sep 5, 2025· Updated Jul 30, 2026

CVE-2025-39714

CVE-2025-39714

Description

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

media: usbtv: Lock resolution while streaming

When an program is streaming (ffplay) and another program (qv4l2) changes the TV standard from NTSC to PAL, the kernel crashes due to trying to copy to unmapped memory.

Changing from NTSC to PAL increases the resolution in the usbtv struct, but the video plane buffer isn't adjusted, so it overflows.

[hverkuil: call vb2_is_busy instead of vb2_is_streaming]

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

115

Patches

Vulnerability mechanics

References

11

News mentions

1