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Vulnerability Details :

CVE-2026-64497

Summary
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published At-25 Jul, 2026 | 08:51
Updated At-25 Jul, 2026 | 08:51
Rejected At-
Credits

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

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Linux
Assigner Org ID:416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published At:25 Jul, 2026 | 08:51
Updated At:25 Jul, 2026 | 08:51
Rejected At:
▼CVE Numbering Authority (CNA)
iio: chemical: scd30: Cleanup initializations and fix sign-extension bug

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.

Affected Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • drivers/iio/chemical/scd30_core.c
Default Status
unaffected
Versions
Affected
  • From 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before 0ccff849bde90973e6c13a666f6ceab5c55b30d4 (git)
  • From 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before 1821bcacd8ac5b214c53be16cbb8172bf193f0b6 (git)
  • From 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before 40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598 (git)
  • From 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before b131f0011dfef72350f4e3f11df94dc3e6b46065 (git)
  • From 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before 8d4a46e971cf846bda98b20d4cabfa21c1276e5f (git)
  • From 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before 82accdd57404399eddf3d56fd9beda7c61307388 (git)
  • From 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before d49ff54b2784aa56a7c97982de713604de89d23a (git)
  • From 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 before 60d877910a43c305b5165131b258a17b1d772d57 (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • drivers/iio/chemical/scd30_core.c
Default Status
affected
Versions
Affected
  • 5.9
Unaffected
  • From 0 before 5.9 (semver)
  • From 5.10.261 through 5.10.* (semver)
  • From 5.15.212 through 5.15.* (semver)
  • From 6.1.178 through 6.1.* (semver)
  • From 6.6.145 through 6.6.* (semver)
  • From 6.12.96 through 6.12.* (semver)
  • From 6.18.39 through 6.18.* (semver)
  • From 7.1.4 through 7.1.* (semver)
  • From 7.2-rc1 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://git.kernel.org/stable/c/0ccff849bde90973e6c13a666f6ceab5c55b30d4
N/A
https://git.kernel.org/stable/c/1821bcacd8ac5b214c53be16cbb8172bf193f0b6
N/A
https://git.kernel.org/stable/c/40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598
N/A
https://git.kernel.org/stable/c/b131f0011dfef72350f4e3f11df94dc3e6b46065
N/A
https://git.kernel.org/stable/c/8d4a46e971cf846bda98b20d4cabfa21c1276e5f
N/A
https://git.kernel.org/stable/c/82accdd57404399eddf3d56fd9beda7c61307388
N/A
https://git.kernel.org/stable/c/d49ff54b2784aa56a7c97982de713604de89d23a
N/A
https://git.kernel.org/stable/c/60d877910a43c305b5165131b258a17b1d772d57
N/A
Hyperlink: https://git.kernel.org/stable/c/0ccff849bde90973e6c13a666f6ceab5c55b30d4
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/1821bcacd8ac5b214c53be16cbb8172bf193f0b6
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/b131f0011dfef72350f4e3f11df94dc3e6b46065
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/8d4a46e971cf846bda98b20d4cabfa21c1276e5f
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/82accdd57404399eddf3d56fd9beda7c61307388
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/d49ff54b2784aa56a7c97982de713604de89d23a
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/60d877910a43c305b5165131b258a17b1d772d57
Resource: N/A
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published At:25 Jul, 2026 | 10:17
Updated At:25 Jul, 2026 | 10:17

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
CPE Matches
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://git.kernel.org/stable/c/0ccff849bde90973e6c13a666f6ceab5c55b30d4416baaa9-dc9f-4396-8d5f-8c081fb06d67
N/A
https://git.kernel.org/stable/c/1821bcacd8ac5b214c53be16cbb8172bf193f0b6416baaa9-dc9f-4396-8d5f-8c081fb06d67
N/A
https://git.kernel.org/stable/c/40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598416baaa9-dc9f-4396-8d5f-8c081fb06d67
N/A
https://git.kernel.org/stable/c/60d877910a43c305b5165131b258a17b1d772d57416baaa9-dc9f-4396-8d5f-8c081fb06d67
N/A
https://git.kernel.org/stable/c/82accdd57404399eddf3d56fd9beda7c61307388416baaa9-dc9f-4396-8d5f-8c081fb06d67
N/A
https://git.kernel.org/stable/c/8d4a46e971cf846bda98b20d4cabfa21c1276e5f416baaa9-dc9f-4396-8d5f-8c081fb06d67
N/A
https://git.kernel.org/stable/c/b131f0011dfef72350f4e3f11df94dc3e6b46065416baaa9-dc9f-4396-8d5f-8c081fb06d67
N/A
https://git.kernel.org/stable/c/d49ff54b2784aa56a7c97982de713604de89d23a416baaa9-dc9f-4396-8d5f-8c081fb06d67
N/A
Hyperlink: https://git.kernel.org/stable/c/0ccff849bde90973e6c13a666f6ceab5c55b30d4
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/1821bcacd8ac5b214c53be16cbb8172bf193f0b6
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/60d877910a43c305b5165131b258a17b1d772d57
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/82accdd57404399eddf3d56fd9beda7c61307388
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/8d4a46e971cf846bda98b20d4cabfa21c1276e5f
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/b131f0011dfef72350f4e3f11df94dc3e6b46065
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/d49ff54b2784aa56a7c97982de713604de89d23a
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource: N/A

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