oss-security - CVE request Kernel: kvm: use-after-free issue while creating devices

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Message-ID: <alpine.LFD.2.20.1701182308090.22270@wniryva>
Date: Wed, 18 Jan 2017 23:10:19 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: NCSC Security <security@...c.gov.uk>
Subject: CVE request Kernel: kvm: use-after-free issue while creating
 devices

   Hello,

Linux kernel built with the Kernel-based Virtual Machine(CONFIG_KVM) support 
is vulnerable to a use-after-free flaw. It could occur while creating devices, 
via ioctl('/dev/kvm', ...) calls.

A user/process could use this flaw to crash the host kernel resulting in DoS 
or potentially escalate their privileges on a system.

Upstream patch:
---------------
   -> https://git.kernel.org/linus/a0f1d21c1ccb1da66629627a74059dd7f5ac9c61

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1414506

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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