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Bug 1445334 - (CVE-2017-8063) CVE-2017-8063 kernel: cxusb.c interacts incorrectly with the CONFIG_VMAP_STACK option
CVE-2017-8063 kernel: cxusb.c interacts incorrectly with the CONFIG_VMAP_STAC...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170205,repor...
: Security
Depends On: 1445344
Blocks:
  Show dependency tree / graph
 
Reported: 2017-04-25 09:46 EDT by Adam Mariš
Modified: 2018-08-28 18:16 EDT (History)
29 users (show)

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Description Adam Mariš 2017-04-25 09:46:15 EDT 
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 09:53:50 EDT 
Created kernel tracking bugs for this issue:

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