2419907 – (CVE-2025-40302) CVE-2025-40302 kernel: media: videobuf2: forbid remove_bufs when legacy fileio is active

Bug 2419907 (CVE-2025-40302) - CVE-2025-40302 kernel: media: videobuf2: forbid remove_bufs when legacy fileio is active

Summary: CVE-2025-40302 kernel: media: videobuf2: forbid remove_bufs when legacy filei...

Keywords:
Status:	NEW
Alias:	CVE-2025-40302
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2025-12-08 07:07 UTC by OSIDB Bzimport
Modified:	2026-06-29 19:00 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2025-12-08 07:07:49 UTC

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

media: videobuf2: forbid remove_bufs when legacy fileio is active

vb2_ioctl_remove_bufs() call manipulates queue internal buffer list,
potentially overwriting some pointers used by the legacy fileio access
mode. Forbid that ioctl when fileio is active to protect internal queue
state between subsequent read/write calls.

Comment 1 Jon Moroney 2025-12-08 20:41:29 UTC Comment hidden (spam)

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