From: Roel Kluin <roel.kluin@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH] newport_con: Read outside array bounds
Date: Wed, 29 Jul 2009 21:20:45 +0200 [thread overview]
Message-ID: <4A70A10D.6030503@gmail.com> (raw)
It read linetable[] before checking bounds of index, and ARRAY_SIZE
is required because linetable[] are unsigned shorts.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
This one wasn't spotted by parfait.
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index d31b203..3772433 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -216,7 +216,7 @@ static void newport_get_screensize(void)
}
newport_xsize = newport_ysize = 0;
- for (i = 0; linetable[i + 1] && (i < sizeof(linetable)); i += 2) {
+ for (i = 0; i < ARRAY_SIZE(linetable) - 1 && linetable[i + 1]; i += 2) {
cols = 0;
newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]);
npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |
reply other threads:[~2009-07-29 19:23 UTC|newest]
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