Vulnerability 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]
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.14, < 5.4.297 |
| Debian | Debian Linux | 11.0 |
References
- https://git.kernel.org/stable/c/3d83d0b5ae5045a7a246ed116b5f6c688a12f9e9Patch
- https://git.kernel.org/stable/c/5427dda195d6baf23028196fd55a0c90f66ffa61Patch
- https://git.kernel.org/stable/c/7e40e0bb778907b2441bff68d73c3eb6b6cd319fPatch
- https://git.kernel.org/stable/c/9f886d21e235c4bd038cb20f6696084304197ab3Patch
- https://git.kernel.org/stable/c/c35e7c7a004ef379a1ae7c7486d4829419acad1dPatch
- https://git.kernel.org/stable/c/c3d75524e10021aa5c223d94da4996640aed46c0Patch
- https://git.kernel.org/stable/c/ee7bade8b9244834229b12b6e1e724939bedd484Patch
- https://git.kernel.org/stable/c/ef9b3c22405192afaa279077ddd45a51db90b83dPatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlMailing ListThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
FAQ
What is CVE-2025-39714?
CVE-2025-39714 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 sta...
How severe is CVE-2025-39714?
CVE-2025-39714 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-39714?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.