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Bug 1445339 - (CVE-2017-8066) CVE-2017-8066 kernel: gs_usb.c interacts incorrectly with the CONFIG_VMAP_STACK option
CVE-2017-8066 kernel: gs_usb.c interacts incorrectly with the CONFIG_VMAP_STA...
Status: CLOSED NOTABUG
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=20170224,repor...
: Security
Depends On:
Blocks:
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Reported: 2017-04-25 09:48 EDT by Adam Mariš
Modified: 2017-04-25 10:00 EDT (History)
32 users (show)

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Last Closed: 2017-04-25 10:00:57 EDT
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Description Adam Mariš 2017-04-25 09:48:07 EDT 
drivers/net/can/usb/gs_usb.c in the Linux kernel 4.9.x and 4.10.x
before 4.10.2 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/c919a3069c775c1c876bec55e00b2305d5125caa
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