CVE-2026-63931

iio: chemical: scd30: fix division by zero in write_raw

State: Published
Severity: Not scored
Published: Jul 19, 2026
Updated: Jul 19, 2026
Reserved: 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 4748bce423a363bb8a85a624faeb8f54fe331611Affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 6308b812acdcac38cbfe1af0b1524c3375f408a5Affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before c7a740bf75554b051fabb17596ca6e483d6e6d90Affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before e85bc501947f5ae16dd9adc01162b76d55ab7962Affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before d98c2e69aab905d1b19a69ffe584efa46a9efd42Affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53Affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 2c50c017df97bfb425038efdfb8514c7bcd08564Affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 5aba4f94b225617a55fed442a70329b2ee19c0a5Affected
LinuxLinux	5.9Affected before 5.9Not affected 5.10.259 through 5.10.Not affected 5.15.210 through 5.15.Not affected 6.1.176 through 6.1.Not affected 6.6.143 through 6.6.Not affected 6.12.93 through 6.12.Not affected 6.18.35 through 6.18.Not affected 7.0.12 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 4748bce423a363bb8a85a624faeb8f54fe331611Affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 6308b812acdcac38cbfe1af0b1524c3375f408a5Affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before c7a740bf75554b051fabb17596ca6e483d6e6d90Affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before e85bc501947f5ae16dd9adc01162b76d55ab7962Affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before d98c2e69aab905d1b19a69ffe584efa46a9efd42Affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53Affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 2c50c017df97bfb425038efdfb8514c7bcd08564Affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99 to before 5aba4f94b225617a55fed442a70329b2ee19c0a5Affected

LinuxLinux

5.9Affected
before 5.9Not affected
5.10.259 through 5.10.*Not affected
5.15.210 through 5.15.*Not affected
6.1.176 through 6.1.*Not affected
6.6.143 through 6.6.*Not affected
6.12.93 through 6.12.*Not affected
6.18.35 through 6.18.*Not affected
7.0.12 through 7.0.*Not affected
7.1 and laterNot affected

References

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