CVE-2016-4568

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-05-23 · updated 2026-06-17
Weakness: CWE-119

Description

drivers/media/v4l2-core/videobuf2-v4l2.c in the Linux kernel before 4.5.3 allows local users to cause a denial of service (kernel memory write operation) or possibly have unspecified other impact via a crafted number of planes in a VIDIOC_DQBUF ioctl call.

Affected products

Linux kernel: from 4.4 before 4.4.9; from 4.5 before 4.5.3 — fixed in 4.4.9, 4.5.3

How to fix

Upgrade to a fixed version: Linux kernel 4.4.9, 4.5.3. Check the vendor advisory for mitigations.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2c1f6951a8a82e6de0d82b1158b5e493fc6c54ab
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3
http://www.openwall.com/lists/oss-security/2016/05/07/4
https://bugzilla.redhat.com/show_bug.cgi?id=1334316
https://github.com/torvalds/linux/commit/2c1f6951a8a82e6de0d82b1158b5e493fc6c54ab
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2c1f6951a8a82e6de0d82b1158b5e493fc6c54ab
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3
http://www.openwall.com/lists/oss-security/2016/05/07/4
https://bugzilla.redhat.com/show_bug.cgi?id=1334316
https://github.com/torvalds/linux/commit/2c1f6951a8a82e6de0d82b1158b5e493fc6c54ab

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