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CVE-2024-42086: iio: chemical: bme680: Fix overflows in compensate() functions

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-29 · updated 2026-06-17
• Weakness: CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: bme680: Fix overflows in compensate() functions There are cases in the compensate functions of the driver that there could be overflows of variables due to bit shifting ops. These implications were initially discussed here [1] and they were mentioned in log message of Commit 1b3bd8592780 ("iio: chemical: Add support for Bosch BME680 sensor"). [1]: https://lore.kernel.org/linux-iio/20180728114028.3c1bbe81@archlinux/

Affected products

• Linux kernel: from 4.19 before 4.19.317; from 4.20 before 5.4.279; from 5.5 before 5.10.221; from 5.11 before 5.15.162; from 5.16 before 6.1.97; from 6.2 before 6.6.37 — fixed in 4.19.317, 5.10.221, 5.15.162, 5.4.279, 6.1.97, 6.6.37

How to fix

Upgrade to a fixed version: Linux kernel 4.19.317, 5.10.221, 5.15.162, 5.4.279. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3add41bbda92938e9a528d74659dfc552796be4e
• https://git.kernel.org/stable/c/6fa31bbe2ea8665ee970258eb8320cbf231dbe9e
• https://git.kernel.org/stable/c/7a13d1357658d3a3c1cd7b3b9543c805a6e5e6e9
• https://git.kernel.org/stable/c/b0af334616ed425024bf220adda0f004806b5feb
• https://git.kernel.org/stable/c/b5967393d50e3c6e632efda3ea3fdde14c1bfd0e
• https://git.kernel.org/stable/c/ba1bb3e2a38a7fef1c1818dd4f2d9abbfdde553a
• https://git.kernel.org/stable/c/c326551e99f5416986074ce78bef94f6a404b517
• https://git.kernel.org/stable/c/fdd478c3ae98c3f13628e110dce9b6cfb0d9b3c8
• https://git.kernel.org/stable/c/3add41bbda92938e9a528d74659dfc552796be4e
• https://git.kernel.org/stable/c/6fa31bbe2ea8665ee970258eb8320cbf231dbe9e
• https://git.kernel.org/stable/c/7a13d1357658d3a3c1cd7b3b9543c805a6e5e6e9
• https://git.kernel.org/stable/c/b0af334616ed425024bf220adda0f004806b5feb

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