From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 20 Jan 2016 09:54:51 +0000 (+0300)
Subject: EDAC, amd64_edac: Shift wrapping issue in f1x_get_norm_dct_addr()
X-Git-Tag: v3.2.80~113
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0d2e02bdbc134227459f0feccc7fa6a14b50966;p=pandora-kernel.git

EDAC, amd64_edac: Shift wrapping issue in f1x_get_norm_dct_addr()

commit 6f3508f61c814ee852c199988a62bd954c50dfc1 upstream.

dct_sel_base_off is declared as a u64 but we're only using the lower 32
bits because of a shift wrapping bug. This can possibly truncate the
upper 16 bits of DctSelBaseOffset[47:26], causing us to misdecode the CS
row.

Fixes: c8e518d5673d ('amd64_edac: Sanitize f10_get_base_addr_offset')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20160120095451.GB19898@mwanda
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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