Not yet scoredPublished Jul 25, 2026

CVE-2026-64497iio: chemical: scd30: Cleanup initializations and fix sign-extension bug

Updated under an hour ago (Oct 27, 2026, 2:30 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: scd30: Cleanup initializations and fix sign-extension bug Include linux/bitfield.h for FIELD_GET(). Create new macros for bit manipulation in combination with manual bit manipulation being replaced with FIELD_GET(). The current variable declaration and initializations are barely readable and use comma separations across multiple lines. Refactor the initializations so that mantissa and exp have separate declarations and sign gets initialized later. In addition (and due to the nature of the cleanup), fix a sign-extension bug where, float32 would get bitwise anded with ~BIT(31) (which is 0xFFFFFFFF7FFFFFFF) which corrupted the exponent.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	64b3d8b1b0f5c16c19045785e4da8391ae35ec99 builds before 0ccff849bde90973e6c13a666f6ceab5c55b30d4; from 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before 1821bcacd8ac5b214c53be16cbb8172bf193f0b6; 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 builds before 40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598; from 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before b131f0011dfef72350f4e3f11df94dc3e6b46065; 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 builds before 8d4a46e971cf846bda98b20d4cabfa21c1276e5f; from 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before 82accdd57404399eddf3d56fd9beda7c61307388; from 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before d49ff54b2784aa56a7c97982de713604de89d23a; 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 builds before 60d877910a43c305b5165131b258a17b1d772d57	CNA record

References

References

https://git.kernel.org/stable/c/0ccff849bde90973e6c13a666f6ceab5c55b30d4
https://git.kernel.org/stable/c/1821bcacd8ac5b214c53be16cbb8172bf193f0b6
https://git.kernel.org/stable/c/40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598
https://git.kernel.org/stable/c/b131f0011dfef72350f4e3f11df94dc3e6b46065
https://git.kernel.org/stable/c/8d4a46e971cf846bda98b20d4cabfa21c1276e5f
https://git.kernel.org/stable/c/82accdd57404399eddf3d56fd9beda7c61307388
https://git.kernel.org/stable/c/d49ff54b2784aa56a7c97982de713604de89d23a
https://git.kernel.org/stable/c/60d877910a43c305b5165131b258a17b1d772d57

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.