Bug 1445334 (CVE-2017-8063) - CVE-2017-8063 kernel: cxusb.c interacts incorrectly with the CONFIG_VMAP_STACK option
Summary: CVE-2017-8063 kernel: cxusb.c interacts incorrectly with the CONFIG_VMAP_STAC...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-8063
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1445344
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-04-25 13:46 UTC by Adam Mariš
Modified: 2019-09-29 14:11 UTC (History)
28 users (show)

Fixed In Version:
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Environment:
Last Closed: 2019-06-08 03:11:18 UTC
Embargoed:

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Description Adam Mariš 2017-04-25 13:46:15 UTC 
drivers/media/usb/dvb-usb/cxusb.c in the Linux kernel 4.9.x and 4.10.x
before 4.10.12 interacts incorrectly with the CONFIG_VMAP_STACK
option, which allows local users to cause a denial of service (system
crash) 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/3f190e3aec212fc8c61e202c51400afa7384d4bc
Comment 1 Adam Mariš 2017-04-25 13:53:50 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1445344]
Comment 2 Justin M. Forbes 2017-04-25 21:44:17 UTC 
Fedora 24 and 25 currently have the 4.10.12 kernel in updates-testing
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