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Date: Tue, 14 Feb 2017 23:49:05 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Wjjzhang <>, Jiang Xin <>
Subject: CVE-2017-5987 Qemu: sd: infinite loop issue in multi block


Quick emulator(Qemu) built with the SDHCI device emulation support is 
vulnerable to an infinite loop issue. It could occur while doing a multi block 
SDMA transfer via 'sdhci_sdma_transfer_multi_blocks' routine.

A privileged user inside guest could use this flaw to crash the Qemu process 
resulting in DoS.

Upstream patch:


This issue was independently reported by Mr Jiang Xin of and 
Wjjzhang of

'CVE-2017-5987' assigned via ->

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

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