Bug 2046440 (CVE-2022-0382)

Summary:	CVE-2022-0382 kernel: information leak due to uninitialized memory in __tipc_sendmsg() in net/tipc/socket.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bdettelb, bhu, bskeggs, chwhite, crwood, dvlasenk, hdegoede, hkrzesin, jarod, jarodwilson, jburrell, jeremy, jfaracco, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, 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:	Linux kernel 5.17-rc1	Doc Type:	If docs needed, set a value
Doc Text:	An information leak flaw was found due to uninitialized memory in the Linux kernel’s TIPC protocol subsystem, in the way a user sends a TIPC datagram to one or more destinations. This flaw allows a local user to read some kernel memory. This issue is limited to no more than 7 bytes, and the user cannot control what is read.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-05-10 17:13:04 UTC	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:	2046442, 2048240, 2048241, 2050039
Bug Blocks:	2039894, 2046443

Description Guilherme de Almeida Suckevicz 2022-01-26 17:04:12 UTC

A flaw was found in the Linux kernel. There is a information leak due to uninitialized memory in __tipc_sendmsg() in net/tipc/socket.c.

Reference and upstream patch:
https://github.com/torvalds/linux/commit/d6d86830705f173fca6087a3e67ceaf68db80523

Comment 1 Guilherme de Almeida Suckevicz 2022-01-26 17:04:57 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2046442]

Comment 2 Justin M. Forbes 2022-01-26 20:58:38 UTC

This was fixed for Fedora with the 5.15.14 stable kernel updates.

Comment 3 Alex 2022-01-30 11:22:16 UTC

Actual starting from v5.13-rc1 till v5.17-rc1.

Comment 6 juneau 2022-01-31 13:31:25 UTC

Services notaffected per kernel analysis.

Comment 14 Product Security DevOps Team 2023-05-10 17:13:00 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-0382