Bug 2184578 (CVE-2023-1855)

Summary:	CVE-2023-1855 kernel: use-after-free bug in remove function xgene_hwmon_remove
Product:	[Other] Security Response	Reporter:	Rohit Keshri <rkeshri>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	acaringi, alex000young, allarkin, bhu, chwhite, dbohanno, ddepaula, debarbos, dfreiber, dvlasenk, ezulian, hackerzheng666, hkrzesin, jarod, jburrell, jdenham, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, ldoskova, lgoncalv, lleshchi, lzampier, nmurray, ptalbert, qzhao, rogbas, rrobaina, rvrbovsk, rysulliv, scweaver, swood, tyberry, vkumar, walters, wcosta, williams, wmealing, ycote
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Kernel 6.3 RC3	Doc Type:	---
Doc Text:	A use-after-free flaw was found in xgene_hwmon_remove in drivers/hwmon/xgene-hwmon.c in the Hardware Monitoring Linux Kernel driver (xgene-hwmon). This flaw could allow a local attacker to crash the system due to a race problem, possibly leading to a kernel information leak.	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:
Bug Depends On:	2184581, 2184582, 2184583, 2184584
Bug Blocks:	2181299

Description Rohit Keshri 2023-04-05 05:43:32 UTC

A use-after-free flaw was found in xgene_hwmon_remove in drivers/hwmon/xgene-hwmon.c in the Hardware Monitoring Linux Kernel Driver (xgene-hwmon). This flaw could allow a local attacker to crash the system due to a race problem. This vulnerability could even lead to a kernel information leak problem.

Reference:
https://lore.kernel.org/all/20230318122758.2140868-1-linux@roeck-us.net/

Comment 7 zhuoraoyang 2023-04-11 07:26:24 UTC

Credit Information:

Zheng Wang(@xmzyshypnc), Zhuorao Yang(@A1ex), Yang Hu(@BlueSheep) and Zong Cao(@P1umer)

Comment 8 hackerzheng666 2023-05-19 03:42:05 UTC

*** Bug 2179795 has been marked as a duplicate of this bug. ***