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Date: Thu, 2 Jul 2020 11:28:46 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Lei Sun <>
Subject: CVE-2020-15469 QEMU: MMIO ops null pointer dereference may lead to


A NULL pointer dereference issue was found in various system emulators of 
QEMU. It could occur while performing MMIO r/w operations, in case the 
respective handler function is not defined. A privileged guest user able to 
invoke MMIO operation may use this flaw to crash the QEMU process on the host 
resulting in DoS scenario.

Upstream patch(es):

This issue was reported by Lei Sun(CC'd); CVE-2020-15469 assigned via

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

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