CVE-2026-63931
Published Jul 19, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: iio: chemical: scd30: fix division by zero in write_raw Add a zero check for val2 before using it as a divisor when setting the sampling frequency. A user writing a zero fractional part to the sampling_frequency sysfs attribute triggers a division by zero in the kernel.
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References
Other References
https://git.kernel.org/stable/c/2c50c017df97bfb425038efdfb8514c7bcd08564
https://git.kernel.org/stable/c/4748bce423a363bb8a85a624faeb8f54fe331611
https://git.kernel.org/stable/c/5aba4f94b225617a55fed442a70329b2ee19c0a5
https://git.kernel.org/stable/c/5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53
https://git.kernel.org/stable/c/6308b812acdcac38cbfe1af0b1524c3375f408a5
https://git.kernel.org/stable/c/c7a740bf75554b051fabb17596ca6e483d6e6d90
https://git.kernel.org/stable/c/d98c2e69aab905d1b19a69ffe584efa46a9efd42
https://git.kernel.org/stable/c/e85bc501947f5ae16dd9adc01162b76d55ab7962
Frequently Asked Questions
What is CVE-2026-63931? +
In the Linux kernel, the following vulnerability has been resolved:
iio: chemical: scd30: fix division by zero in write_raw
Add a zero check for val2 before using it as a divisor when setting the
sampling frequency. A user writing a zero fractional part to the
sampling_frequency sysfs attribute triggers a division by zero in the
kernel.
How do I check if I'm vulnerable to CVE-2026-63931? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.