Bug 2084443 (CVE-2022-1974)

Summary:	CVE-2022-1974 kernel: use-after-free in /net/nfc/core.c causes kernel crash by simulating nfc device from user-space
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bdettelb, bhu, chwhite, crwood, ddepaula, dvlasenk, hkrzesin, hpa, jarod, jarodwilson, jburrell, jfaracco, jferlan, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 5.18 rc6	Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in the Linux kernel's NFC core functionality due to a race condition between kobject creation and delete. This vulnerability allows a local attacker with CAP_NET_ADMIN privilege to leak kernel information.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
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Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2084445

Description TEJ RATHI 2022-05-12 07:28:15 UTC

There is use-after-free vulnerability in /net/nfc/core.c of linux that allow attacker to crash linux kernel by simulating nfc device from user-space.

[Patch]
https://github.com/torvalds/linux/commit/da5c0f119203ad9728920456a0f52a6d850c01cd

Comment 5 Rohit Keshri 2022-05-30 19:38:19 UTC

There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code.