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Date: Wed, 25 Jun 2014 09:39:06 +0200
From: Petr Matousek <>
Cc: Mateusz Guzik <>
Subject: CVE-2014-0206 -- Linux kernel: kernel memory disclosure in

A kernel memory disclosure was introduced in aio_read_events_ring() in
v3.10 by commit a31ad380bed817aa25f8830ad23e1a0480fef797.  The changes
made to aio_read_events_ring() failed to correctly limit the index into
ctx->ring_pages[], allowing an attacker to cause the subsequent kmap()
of an arbitrary page with a copy_to_user() to copy the contents into

Upstream patches:

This issue was discovered by Mateusz Guzik of Red Hat.

Petr Matousek / Red Hat Product Security
PGP: 0xC44977CA 8107 AF16 A416 F9AF 18F3  D874 3E78 6F42 C449 77CA

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