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Medium severity5.5NVD Advisory· Published Sep 5, 2025· Updated Jun 17, 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

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Affected products

114

Patches

Vulnerability mechanics

References

11

News mentions

1