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From 1958d41c7db1f415f84cb3ef316708ca83e6e72f Mon Sep 17 00:00:00 2001
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From: Markus Armbruster <armbru@redhat.com>
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Date: Fri, 25 Apr 2014 17:54:05 +0200
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Subject: [PATCH 12/12] ide: Correct improper smart self test counter reset in ide core.
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Markus Armbruster <armbru@redhat.com>
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Message-id: <1398448445-17245-2-git-send-email-armbru@redhat.com>
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Patchwork-id: 58568
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O-Subject: [PATCH 7.0 qemu-kvm 1/1] ide: Correct improper smart self test counter reset in ide core.
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Bugzilla: 1087980
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
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From: Benoît Canet <benoit.canet@irqsave.net>
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The SMART self test counter was incorrectly being reset to zero,
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not 1. This had the effect that on every 21st SMART EXECUTE OFFLINE:
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* We would write off the beginning of a dynamically allocated buffer
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* We forgot the SMART history
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Fix this.
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Signed-off-by: Benoit Canet <benoit@irqsave.net>
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Message-id: 1397336390-24664-1-git-send-email-benoit.canet@irqsave.net
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Reviewed-by: Markus Armbruster <armbru@redhat.com>
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Cc: qemu-stable@nongnu.org
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Acked-by: Kevin Wolf <kwolf@redhat.com>
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[PMM: tweaked commit message as per suggestions from Markus]
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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(cherry picked from commit 940973ae0b45c9b6817bab8e4cf4df99a9ef83d7)
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Conflicts:
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hw/ide/core.c
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CVE-2014-2894
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
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---
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hw/ide/core.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/ide/core.c | 2 +-
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1 files changed, 1 insertions(+), 1 deletions(-)
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diff --git a/hw/ide/core.c b/hw/ide/core.c
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index c172c71..0313250 100644
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--- a/hw/ide/core.c
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+++ b/hw/ide/core.c
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@@ -1617,7 +1617,7 @@ void ide_exec_cmd(IDEBus *bus, uint32_t val)
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case 2: /* extended self test */
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s->smart_selftest_count++;
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if(s->smart_selftest_count > 21)
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- s->smart_selftest_count = 0;
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+ s->smart_selftest_count = 1;
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n = 2 + (s->smart_selftest_count - 1) * 24;
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s->smart_selftest_data[n] = s->sector;
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s->smart_selftest_data[n+1] = 0x00; /* OK and finished */
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--
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1.7.1
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