linux-kernel - drivers/ide/pci/cs5535.c: array overrun

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Message-ID: <20070724124524.GA6019@stusta.de>
Date:	Tue, 24 Jul 2007 14:45:24 +0200
From:	Adrian Bunk <bunk@...sta.de>
To:	bzolnier@...il.com
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: drivers/ide/pci/cs5535.c: array overrun

The Coverity checker spotted the following array overrun in 
drivers/ide/pci/cs5535.c:

<--  snip  -->

...
static unsigned int cs5535_udma_timings[5] =
{ 0x7F7436A1, 0x7F733481, 0x7F723261, 0x7F713161, 0x7F703061 };
...
static void cs5535_set_speed(ide_drive_t *drive, u8 speed)
{
...
                if (speed >= XFER_UDMA_0 && speed <= XFER_UDMA_7)
                        reg |= cs5535_udma_timings[speed - XFER_UDMA_0];
...

<--  snip  -->

XFER_UDMA_7 - XFER_UDMA_0 = 7  >  (5 - 1)

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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