Bug 2482091 (CVE-2026-46044)

Summary:	CVE-2026-46044 kernel: ipmi:ssif: Clean up kthread on errors
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's Intelligent Platform Management Interface (IPMI) SSIF (SMBus System Interface) driver. If an error occurs after a kernel thread (kthread) is created but before the main IPMI code initializes the SSIF interface, the kthread may not be properly stopped. This could lead to resource exhaustion or system instability, potentially resulting in a Denial of Service (DoS).	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-05-27 15:10:53 UTC

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

ipmi:ssif: Clean up kthread on errors

If an error occurs after the ssif kthread is created, but before the
main IPMI code starts the ssif interface, the ssif kthread will not
be stopped.

So make sure the kthread is stopped on an error condition if it is
running.

Comment 1 Keith Grant 2026-05-27 19:31:32 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052752-CVE-2026-46044-6965@gregkh/T