Bug 2492417 (CVE-2026-53030)

Summary:	CVE-2026-53030 kernel: i3c: master: renesas: Fix memory leak in renesas_i3c_i3c_xfers()
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, specifically within the i3c master renesas driver. This vulnerability is caused by a memory leak in the `renesas_i3c_i3c_xfers()` function, where an allocated `xfer` structure is not properly freed. An attacker could potentially exploit this to cause a denial of service by exhausting system memory resources.	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 2026-06-24 18:11:02 UTC

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

i3c: master: renesas: Fix memory leak in renesas_i3c_i3c_xfers()

The xfer structure allocated by renesas_i3c_alloc_xfer() was never freed
in the renesas_i3c_i3c_xfers() function. Use the __free(kfree) cleanup
attribute to automatically free the memory when the variable goes out of
scope.

Comment 1 Mauro Matteo Cascella 2026-06-26 12:08:31 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062454-CVE-2026-53030-c7d3@gregkh/T