Bug 2312221 (CVE-2024-46713)

Summary:	CVE-2024-46713 kernel: perf/aux: Fix AUX buffer serialization
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
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2312227
Bug Blocks:

Description OSIDB Bzimport 2024-09-13 15:20:31 UTC

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

perf/aux: Fix AUX buffer serialization

Ole reported that event->mmap_mutex is strictly insufficient to
serialize the AUX buffer, add a per RB mutex to fully serialize it.

Note that in the lock order comment the perf_event::mmap_mutex order
was already wrong, that is, it nesting under mmap_lock is not new with
this patch.

Comment 1 Michal Findra 2024-09-13 15:34:55 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024091316-CVE-2024-46713-5e49@gregkh/T

Comment 3 errata-xmlrpc 2025-01-08 01:24:52 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:0059 https://access.redhat.com/errata/RHSA-2025:0059