Bug 2477145 (CVE-2026-43476)

Summary:	CVE-2026-43476 kernel: iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas()
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in the Linux kernel, specifically within a module responsible for handling sensor data. This vulnerability is caused by an error in calculating the correct size for a data buffer. An attacker could potentially exploit this issue to corrupt memory, which might lead to the system becoming unresponsive (Denial of Service) or the unauthorized disclosure of sensitive information.	Story Points:	---
Clone Of:		Environment:
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Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-05-13 16:06:28 UTC

In the Linux kernel, the following vulnerability has been resolved:

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas()

sizeof(num) evaluates to sizeof(size_t) (8 bytes on 64-bit) instead
of the intended __be32 element size (4 bytes). Use sizeof(*meas) to
correctly match the buffer element type.

Comment 1 Keith Grant 2026-05-13 17:29:10 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026051344-CVE-2026-43476-0f4f@gregkh/T