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Date: Wed, 3 Apr 2019 07:46:52 -0400 (EDT)
From: Vladis Dronov <vdronov@...hat.com>
To: oss-security@...ts.openwall.com
Subject: CVE-2019-3882: Linux kernel: DoS through vfio/type1 DMA mappings
Heololo,
A flaw was found in the Linux kernel's vfio interface implementation that permits
violation of the user's locked memory limit. If a device is bound to a vfio driver,
such as vfio-pci, and the local attacker is administratively granted ownership of
the device, it may cause a system memory exhaustion and thus a denial of service (DoS).
CVE-2019-3882 was allocated for this flaw.
References:
https://lore.kernel.org/lkml/155414977872.12780.13728555131525362206.stgit@gimli.home/T/#u
https://bugzilla.redhat.com/show_bug.cgi?id=1689426
Best regards,
Vladis Dronov | Red Hat, Inc. | Product Security | Senior Software Engineer
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