Bug 2313106 (CVE-2024-46758)

Summary:	CVE-2024-46758 kernel: hwmon: (lm95234) Fix underflows seen when writing limit attributes
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A buffer underrun vulnerability was found in the Linux kernel. DIV_ROUND_CLOSEST() after kstrtol() results in an underflow if a large negative number, such as -9223372036854775808, is provided by the user, resulting in loss of availability of the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
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Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2313208
Bug Blocks:

Description OSIDB Bzimport 2024-09-18 08:21:55 UTC

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

hwmon: (lm95234) Fix underflows seen when writing limit attributes

DIV_ROUND_CLOSEST() after kstrtol() results in an underflow if a large
negative number such as -9223372036854775808 is provided by the user.
Fix it by reordering clamp_val() and DIV_ROUND_CLOSEST() operations.

Comment 1 Michal Findra 2024-09-18 10:25:57 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024091841-CVE-2024-46758-6154@gregkh/T

Comment 2 errata-xmlrpc 2025-05-13 08:28:27 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966