Bug 2091704 (CVE-2022-1678)

Summary:	CVE-2022-1678 kernel: improper update of sock reference in TCP pacing can lead to memory leak
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
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, hdegoede, 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, lzampier, 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-4.20-rc1	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Linux kernel. An incorrect update of the sock reference in TCP pacing can lead to a memory leak, wasting memory on the system.	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:	2091705, 2122085, 2122086
Bug Blocks:	2091706

Description Guilherme de Almeida Suckevicz 2022-05-30 19:06:48 UTC

An issue was discovered in the Linux Kernel from 4.18 to 4.19, an improper update of sock reference in TCP pacing can lead to memory/netns leak, which can be used by remote clients.

References:
https://gitee.com/anolis/cloud-kernel/commit/bed537da691b
https://bugzilla.openanolis.cn/show_bug.cgi?id=61
https://lore.kernel.org/all/20200602080425.93712-1-kerneljasonxing@gmail.com/
https://github.com/torvalds/linux/commit/0a70f118475e037732557796accd0878a00fc25a

Comment 1 Guilherme de Almeida Suckevicz 2022-05-30 19:08:06 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2091705]

Comment 2 Justin M. Forbes 2022-06-01 21:36:05 UTC

This was fixed for Fedora years ago in the 4.20 kernel rebases.

Comment 12 Wade Mealing 2022-09-08 06:56:39 UTC

RHEL 8 based products are not marked as affected, this was fixed in 8.4 and this flaw doesn't qualify for z stream inclusion.