Bug 2293230 (CVE-2021-47596)

Summary:	CVE-2021-47596 kernel: net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar, ymittal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 5.10.88, kernel 5.15.11, kernel 5.16	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel's HNS3 network driver related to a use-after-free condition in the hclgevf_send_mbx_msg function. The issue occurs when the hns3_remove function uninstalls a client instance before uninstalling the acceleration engine device, leading to access of freed memory during the device's uninstall process, resulting in system crash.	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:
Bug Blocks:	2293209

Description Avinash Hanwate 2024-06-20 10:40:49 UTC

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

net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg

The Linux kernel CVE team has assigned CVE-2021-47596 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024061920-CVE-2021-47596-cd94@gregkh/T

Comment 6 errata-xmlrpc 2024-07-15 05:12:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:4533 https://access.redhat.com/errata/RHSA-2024:4533

Comment 7 errata-xmlrpc 2024-07-15 21:23:51 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:4554 https://access.redhat.com/errata/RHSA-2024:4554

Comment 8 errata-xmlrpc 2024-07-17 00:48:30 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:4583 https://access.redhat.com/errata/RHSA-2024:4583