summaryrefslogtreecommitdiffstats
path: root/arch/sh/kernel
diff options
context:
space:
mode:
authorBenjamin LaHaise <bcrl@kvack.org>2014-06-24 13:32:51 -0400
committerBenjamin LaHaise <bcrl@kvack.org>2014-06-24 13:46:01 -0400
commitedfbbf388f293d70bf4b7c0bc38774d05e6f711a (patch)
tree9603bc6513868d7c28052ac1e96e6bbff7121063 /arch/sh/kernel
parentf8567a3845ac05bb28f3c1b478ef752762bd39ef (diff)
downloadop-kernel-dev-edfbbf388f293d70bf4b7c0bc38774d05e6f711a.zip
op-kernel-dev-edfbbf388f293d70bf4b7c0bc38774d05e6f711a.tar.gz
aio: fix kernel memory disclosure in io_getevents() introduced in v3.10
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 attacked to cause the subsequent kmap() of an arbitrary page with a copy_to_user() to copy the contents into userspace. This vulnerability has been assigned CVE-2014-0206. Thanks to Mateusz and Petr for disclosing this issue. This patch applies to v3.12+. A separate backport is needed for 3.10/3.11. Signed-off-by: Benjamin LaHaise <bcrl@kvack.org> Cc: Mateusz Guzik <mguzik@redhat.com> Cc: Petr Matousek <pmatouse@redhat.com> Cc: Kent Overstreet <kmo@daterainc.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: stable@vger.kernel.org
Diffstat (limited to 'arch/sh/kernel')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud