PT-2026-38954 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-21 · CVE-2026-43312

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the ov5647 init controls() function where v4l2 get subdevdata is called before the subdevice is initialized by v4l2 i2c subdev init() during the probe process. This incorrect initialization order can lead to a segmentation fault (a memory access violation) if an error condition occurs while attempting to access the i2c client variable.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-43312

Affected Products

Linux Kernel

References · 19

• https://git.kernel.org/stable/c/2dedda97a64e7735844609c6c77c0dd953d73833 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-43312 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43312 · Security Note
• https://git.kernel.org/stable/c/8ecb21c20387cc0c8aa00489a21ccc69f6b0f5d1 · Patch
• https://ubuntu.com/security/CVE-2026-43312 · Vendor Advisory
• https://git.kernel.org/stable/c/59e372aa4cf60e2500eba7f978acdcb18bb49032 · Patch
• https://git.kernel.org/stable/c/fb69e4842f5b463ff5f121d2ac7746014e3477ea · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43312 · Vendor Advisory
• https://git.kernel.org/stable/c/cabd025182cfed4a19b3aab57493e312d681e398 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-43312 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43312 · Vendor Advisory
• https://git.kernel.org/stable/c/f2a1998bc0053ebfe137f65081ed13afd9f34502 · Patch
• https://git.kernel.org/stable/c/eee13cbccacb6d0a3120c126b8544030905b069d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-43312 · Security Note
• https://twitter.com/hetmehtaa/status/2055151398283837677 · Twitter Post