Bug 1445828 (CVE-2017-8106) - CVE-2017-8106 kernel: Null pointer dereference on host in INVEPT emulation
Summary: CVE-2017-8106 kernel: Null pointer dereference on host in INVEPT emulation
Status: CLOSED NOTABUG
Alias: CVE-2017-8106
Product: Security Response
Classification: Other
Component: vulnerability   
(Show other bugs)
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
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URL:
Whiteboard: impact=moderate,public=20170331,repor...
Keywords: Security
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-04-26 15:23 UTC by Adam Mariš
Modified: 2017-04-26 15:26 UTC (History)
32 users (show)

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Last Closed: 2017-04-26 15:26:49 UTC
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Description Adam Mariš 2017-04-26 15:23:53 UTC
The handle_invept function in arch/x86/kvm/vmx.c in the Linux kernel 3.12 through 3.15 allows privileged KVM guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a single-context INVEPT instruction with a NULL EPT pointer.

Bug reports:

https://bugzilla.kernel.org/show_bug.cgi?id=195167
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678676


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