High 7.8Published Dec 8, 2025

CVE-2025-40302media: videobuf2: forbid remove_bufs when legacy fileio is active

Updated under an hour ago (2026-10-19 10:10 UTC)

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Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from a3293a85381ec9680aa2929547fbc76c5d87a1b2 before a6a493b985bfffac097a4e1be09f98b27729dca8; from a3293a85381ec9680aa2929547fbc76c5d87a1b2 before e819b34df0a7030a15c968d619fa8a3ed2455c7a; from a3293a85381ec9680aa2929547fbc76c5d87a1b2 before 27afd6e066cfd80ddbe22a4a11b99174ac89cced	CNA record

References

https://git.kernel.org/stable/c/a6a493b985bfffac097a4e1be09f98b27729dca8
https://git.kernel.org/stable/c/e819b34df0a7030a15c968d619fa8a3ed2455c7a
https://git.kernel.org/stable/c/27afd6e066cfd80ddbe22a4a11b99174ac89cced

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.