iio: chemical: scd30: fix division by zero in write_raw
Summary
| CVE | CVE-2026-63931 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-19 16:17:11 UTC |
| Updated | 2026-07-19 16:17:11 UTC |
| 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. |
Risk And Classification
EPSS: 0.002100000 probability, percentile 0.113650000 (date 2026-07-20)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 4748bce423a363bb8a85a624faeb8f54fe331611 git | Not specified |
| CNA | Linux | Linux | affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 6308b812acdcac38cbfe1af0b1524c3375f408a5 git | Not specified |
| CNA | Linux | Linux | affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 c7a740bf75554b051fabb17596ca6e483d6e6d90 git | Not specified |
| CNA | Linux | Linux | affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 e85bc501947f5ae16dd9adc01162b76d55ab7962 git | Not specified |
| CNA | Linux | Linux | affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 d98c2e69aab905d1b19a69ffe584efa46a9efd42 git | Not specified |
| CNA | Linux | Linux | affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53 git | Not specified |
| CNA | Linux | Linux | affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 2c50c017df97bfb425038efdfb8514c7bcd08564 git | Not specified |
| CNA | Linux | Linux | affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 5aba4f94b225617a55fed442a70329b2ee19c0a5 git | Not specified |
| CNA | Linux | Linux | affected 5.9 | Not specified |
| CNA | Linux | Linux | unaffected 5.9 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.259 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.210 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.176 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.143 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.93 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.35 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.12 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/e85bc501947f5ae16dd9adc01162b76d55ab7962 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/c7a740bf75554b051fabb17596ca6e483d6e6d90 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6308b812acdcac38cbfe1af0b1524c3375f408a5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/5aba4f94b225617a55fed442a70329b2ee19c0a5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/2c50c017df97bfb425038efdfb8514c7bcd08564 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4748bce423a363bb8a85a624faeb8f54fe331611 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/d98c2e69aab905d1b19a69ffe584efa46a9efd42 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.