CVE-2026-43312 media: i2c: ov5647: Initialize subdev before controls

What is CVE-2026-43312?

CVE-2026-43312 is a medium-severity vulnerability in Linux kernel, published on 8 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

media: i2c: ov5647: Initialize subdev before controls

In ov5647_init_controls() we call v4l2_get_subdevdata, but it is initialized by v4l2_i2c_subdev_init() in the probe, which currently happens after init_controls(). This can result in a segfault if the error condition is hit, and we try to access i2c_client, so fix the order.

Which versions are affected by CVE-2026-43312?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43312?

Apply the vendor's patch.

Is CVE-2026-43312 being exploited?

There is no known exploitation of CVE-2026-43312 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-43312, DEBIAN-CVE-2026-43312, GHSA-p2r3-p9wp-qrx6, ROOT-OS-UBUNTU-2204-CVE-2026-43312, ROOT-OS-UBUNTU-2404-CVE-2026-43312, UBUNTU-CVE-2026-43312.