Bug 1445333 (CVE-2017-8061)

Summary:	CVE-2017-8061 kernel: dvb-usb-firmware.c interacts incorrectly with the CONFIG_VMAP_STACK option
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aquini, bhu, dhoward, fhrbata, gansalmon, hwkernel-mgr, iboverma, ichavero, itamar, jforbes, jkacur, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, madhu.chinakonda, matt, mchehab, mcressma, nmurray, pholasek, plougher, rt-maint, rvrbovsk, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2019-06-08 03:11:16 UTC	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:

Description Adam Mariš 2017-04-25 13:45:48 UTC

drivers/media/usb/dvb-usb/dvb-usb-firmware.c in the Linux kernel 4.9.x
and 4.10.x before 4.10.7 interacts incorrectly with the
CONFIG_VMAP_STACK option, which allows local users to cause a denial
of service (system crash or memory corruption) or possibly have
unspecified other impact by leveraging use of more than one virtual
page for a DMA scatterlist.

Upstream patch:

https://github.com/torvalds/linux/commit/67b0503db9c29b04eadfeede6bebbfe5ddad94ef