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Date: Wed, 19 Dec 2018 13:31:27 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Li Qiang <>
Subject: CVE-2018-20126 QEMU: pvrdma: memory leakage when creating cq/qp


A memory leakage issue was found in QEMU's implementation of VMWare's 
paravirtual RDMA device. It could occur while creating CQ/QP ring objects in 
create_cq/qp() routines, as it did not free ring objects' memory in case of an 

A guest user/process could use this flaw to leak host memory resulting in DoS.

Upstream patch:

This issue was reported by Li Qiang.

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

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