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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-08 · updated 2026-06-17

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.

Affected products

• Linux kernel: from 5.12 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6 — fixed in 5.15.202, 6.1.165, 6.12.75, 6.18.16, 6.19.6, 6.6.128

How to fix

Upgrade to a fixed version: Linux kernel 5.15.202, 6.1.165, 6.12.75, 6.18.16. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2dedda97a64e7735844609c6c77c0dd953d73833
• https://git.kernel.org/stable/c/59e372aa4cf60e2500eba7f978acdcb18bb49032
• https://git.kernel.org/stable/c/8ecb21c20387cc0c8aa00489a21ccc69f6b0f5d1
• https://git.kernel.org/stable/c/cabd025182cfed4a19b3aab57493e312d681e398
• https://git.kernel.org/stable/c/eee13cbccacb6d0a3120c126b8544030905b069d
• https://git.kernel.org/stable/c/f2a1998bc0053ebfe137f65081ed13afd9f34502
• https://git.kernel.org/stable/c/fb69e4842f5b463ff5f121d2ac7746014e3477ea

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