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ALSA: Xonar, CS43xx: Don't overrun static array 

'cs4398_regs' in 'struct xonar_cs43xx' is an array of 'u8' with a size of
8. So, this code in sound/pci/oxygen/xonar_cs43xx.c::dump_d1_registers()

    		for (i = 2; i <= 8; ++i)
	  			snd_iprintf(buffer, " %02x", data->cs4398_regs[i]);

will overrun the array when 'i == 8'.

I guess that what's needed to fix it is the trivial patch below, but I
must admit that I have no idea about this code, so I may very well be
wrong. Additionally, I have no way to actually test this, so all I know is
that the below compiles. Someone who actually knows this code should take
a look before anything is comitted - consider the below (not much more
than) a bug report.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Clemens Ladisch <clemens@ladisch.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jesper Juhl 2011-01-20 22:37:43 +01:00 committed by Takashi Iwai
parent 842a209700
commit 233d84c46c
1 changed files with 1 additions and 1 deletions
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2
sound/pci/oxygen/xonar_cs43xx.c
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@ -392,7 +392,7 @@ static void dump_d1_registers(struct oxygen *chip,
unsigned int i;
snd_iprintf(buffer, "\nCS4398: 7?");
for (i = 2; i <= 8; ++i)
for (i = 2; i < 8; ++i)
snd_iprintf(buffer, " %02x", data->cs4398_regs[i]);
snd_iprintf(buffer, "\n");
dump_cs4362a_registers(data, buffer);