# CVE-2023-52805: jfs: fix array-index-out-of-bounds in diAlloc

- 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=total
- Known exploited (CISA KEV): no
- Published: 2024-05-21 · 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: fix array-index-out-of-bounds in diAlloc Currently there is not check against the agno of the iag while allocating new inodes to avoid fragmentation problem. Added the check which is required.

## 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.
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## 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/2308d0fb0dc32446b4e6ca37cd09c30374bb64e9
- https://git.kernel.org/stable/c/cf7e3e84df36a9953796c737f080712f631d7083
- https://git.kernel.org/stable/c/7467ca10a5ff09b0e87edf6c4d2a4bfdee69cf2c
- https://git.kernel.org/stable/c/1ba7df5457dc1c1071c5f92ac11323533a6430e1
- https://git.kernel.org/stable/c/64f062baf202b82f54987a3f614a6c8f3e466641
- https://git.kernel.org/stable/c/8c68af2af697ba2ba3b138be0c6d72e2ce3a3d6d
- https://git.kernel.org/stable/c/665b44e55c2767a4f899c3b18f49e9e1c9983777
- https://git.kernel.org/stable/c/1708d0a9917fea579cc9da3d87b154285abd2cd8
- https://git.kernel.org/stable/c/05d9ea1ceb62a55af6727a69269a4fd310edf483

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Page: https://cve.now/CVE-2023-52805
JSON: https://cve.now/api/v1/entries/CVE-2023-52805
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