oss-security - CVE-2020-27152 Kernel: KVM: host stack overflow via loop due to lazy update IOAPIC

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Message-ID: <p6n9p43q-n5s1-q123-43q2-35nn86n0oo1q@erqung.pbz>
Date: Tue, 3 Nov 2020 16:25:31 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
Subject: CVE-2020-27152 Kernel: KVM: host stack overflow via loop due to lazy
 update IOAPIC

   Hello,

A stack overflow via an infinite loop condition issue was found in the KVM 
hypervisor of the Linux kernel. It could occur while processing interrupts 
because irq state is erroneously set. A guest user may use this flaw to crash 
the host kernel resulting in DoS scenario.

Upstream patch:
---------------
   -> https://git.kernel.org/linus/77377064c3a94911339f13ce113b3abf265e06da

'CVE-2020-27152' assigned via -> https://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
8685 545E B54C 486B C6EB 271E E285 8B5A F050 DE8D

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