media: usbtv: Lock resolution while streaming

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Summary

CVECVE-2025-39714
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-05 18:15:48 UTC
Updated2026-05-12 13:17:07 UTC
DescriptionIn 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]

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0e0fe3958fdd13dbf55c3a787acafde6efd04272 c35e7c7a004ef379a1ae7c7486d4829419acad1d git Not specified
CNA Linux Linux affected 0e0fe3958fdd13dbf55c3a787acafde6efd04272 ee7bade8b9244834229b12b6e1e724939bedd484 git Not specified
CNA Linux Linux affected 0e0fe3958fdd13dbf55c3a787acafde6efd04272 5427dda195d6baf23028196fd55a0c90f66ffa61 git Not specified
CNA Linux Linux affected 0e0fe3958fdd13dbf55c3a787acafde6efd04272 ef9b3c22405192afaa279077ddd45a51db90b83d git Not specified
CNA Linux Linux affected 0e0fe3958fdd13dbf55c3a787acafde6efd04272 3d83d0b5ae5045a7a246ed116b5f6c688a12f9e9 git Not specified
CNA Linux Linux affected 0e0fe3958fdd13dbf55c3a787acafde6efd04272 c3d75524e10021aa5c223d94da4996640aed46c0 git Not specified
CNA Linux Linux affected 0e0fe3958fdd13dbf55c3a787acafde6efd04272 9f886d21e235c4bd038cb20f6696084304197ab3 git Not specified
CNA Linux Linux affected 0e0fe3958fdd13dbf55c3a787acafde6efd04272 7e40e0bb778907b2441bff68d73c3eb6b6cd319f git Not specified
CNA Linux Linux affected 3.14 Not specified
CNA Linux Linux unaffected 3.14 semver Not specified
CNA Linux Linux unaffected 5.4.297 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.241 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.190 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.149 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.103 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.44 6.12.* semver Not specified
CNA Linux Linux unaffected 6.16.4 6.16.* semver Not specified
CNA Linux Linux unaffected 6.17 * original_commit_for_fix Not specified
ADP Siemens SIMATIC CN 4100 affected V5.0 custom Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2025/10/msg00008.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/c35e7c7a004ef379a1ae7c7486d4829419acad1d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c3d75524e10021aa5c223d94da4996640aed46c0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3d83d0b5ae5045a7a246ed116b5f6c688a12f9e9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5427dda195d6baf23028196fd55a0c90f66ffa61 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7e40e0bb778907b2441bff68d73c3eb6b6cd319f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ee7bade8b9244834229b12b6e1e724939bedd484 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ef9b3c22405192afaa279077ddd45a51db90b83d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-032379.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/9f886d21e235c4bd038cb20f6696084304197ab3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/10/msg00007.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
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