linux-kernel - [PATCH 4.2.y-ckt 012/206] drm/gma500: Fix possible out of bounds read

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Message-Id: <1465507015-23052-13-git-send-email-kamal@canonical.com>
Date:	Thu,  9 Jun 2016 14:13:41 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Itai Handler <itai_handler@...mail.com>,
	Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 4.2.y-ckt 012/206] drm/gma500: Fix possible out of bounds read

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Itai Handler <itai_handler@...mail.com>

commit 7ccca1d5bf69fdd1d3c5fcf84faf1659a6e0ad11 upstream.

Fix possible out of bounds read, by adding missing comma.
The code may read pass the end of the dsi_errors array
when the most significant bit (bit #31) in the intr_stat register
is set.
This bug has been detected using CppCheck (static analysis tool).

Signed-off-by: Itai Handler <itai_handler@...mail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@...il.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c b/drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c
index 6b43ae3..1616af2 100644
--- a/drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c
+++ b/drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c
@@ -72,7 +72,7 @@ static const char *const dsi_errors[] = {
 	"RX Prot Violation",
 	"HS Generic Write FIFO Full",
 	"LP Generic Write FIFO Full",
-	"Generic Read Data Avail"
+	"Generic Read Data Avail",
 	"Special Packet Sent",
 	"Tearing Effect",
 };
-- 
2.7.4