Bug 1312671

Summary:	CVE-2016-2782 kernel: visor: crash on invalid USB device descriptors in treo_attach() in visor driver [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Vladis Dronov <vdronov>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	23	CC:	gansalmon, itamar, jforbes, jonathan, jwboyer, kernel-maint, madhu.chinakonda, mchehab
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Release Note
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-29 13:39:32 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:
Bug Blocks:	1312670

Description Vladis Dronov 2016-02-28 16:49:02 UTC

This is an automatically created tracking bug!  It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.

For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.

For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs

When submitting as an update, use the fedpkg template provided in the next
comment(s).  This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.

Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.

NOTE: this issue affects multiple supported versions of Fedora. While only
one tracking bug has been filed, please correct all affected versions at
the same time.  If you need to fix the versions independent of each other,
you may clone this bug as appropriate.

Reproducers, if any, will remain confidential and never be made public, unless done so by the security team.

[bug automatically created by: add-tracking-bugs]

Comment 1 Vladis Dronov 2016-02-28 16:49:14 UTC

Use the following template to for the 'fedpkg update' request to submit an
update for this issue as it contains the top-level parent bug(s) as well as
this tracking bug.  This will ensure that all associated bugs get updated
when new packages are pushed to stable.

=====

# bugfix, security, enhancement, newpackage (required)
type=security

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=1312670,1312671

# Description of your update
notes=Security fix for 

# Enable request automation based on the stable/unstable karma thresholds
autokarma=True
stable_karma=3
unstable_karma=-3

# Automatically close bugs when this marked as stable
close_bugs=True

# Suggest that users restart after update
suggest_reboot=False

======

Additionally, you may opt to use the bodhi web interface to submit updates:

https://bodhi.fedoraproject.org/updates/new

Comment 2 Vladis Dronov 2016-02-28 16:51:33 UTC

An upstream patch:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb3232138e37129e88240a98a1d2aba2187ff57c

is in the tree since v4.5-rc2:

$ git tag --contains cb3232138e37129e88240a98a1d2aba2187ff57c
v4.5-rc2
v4.5-rc3

Comment 3 Josh Boyer 2016-02-29 13:39:32 UTC

This was fixed in stable kernel release 4.4.2 with

commit 2dc803d0740f0c493a7db8a1baf6514d5b95b6a3
Author: Vladis Dronov <vdronov>
Date:   Tue Jan 12 15:10:50 2016 +0100

    USB: serial: visor: fix crash on detecting device without write_urbs
    
    commit cb3232138e37129e88240a98a1d2aba2187ff57c upstream.
    


All Fedora branches are on 4.4.2 or newer already.