From: Eugene Teo <eugene.teo@eugeneteo.net>
To: linux-kernel@vger.kernel.org
Cc: Matt Wu <Matt_Wu@acersoftech.com.cn>
Subject: Fix ali5451 dereferenced before NULL check
Date: Thu, 16 Mar 2006 09:36:02 +0800 [thread overview]
Message-ID: <20060316013602.GA20455@eugeneteo.net> (raw)
pvoice is missing a NULL check. channel needs a bound check too.
Coverity bug #862
Signed-off-by: Eugene Teo <eugene.teo@eugeneteo.net>
--- linux-2.6/sound/pci/ali5451/ali5451.c~ 2006-03-15 10:05:45.000000000 +0800
+++ linux-2.6/sound/pci/ali5451/ali5451.c 2006-03-16 09:27:53.000000000 +0800
@@ -990,7 +990,13 @@
if (!(old & mask))
return;
+ if (channel < 0 || channel >= ALI_CHANNELS)
+ return;
+
pvoice = &codec->synth.voices[channel];
+ if (pvoice == NULL)
+ return;
+
runtime = pvoice->substream->runtime;
udelay(100);
--
1024D/A6D12F80 print D51D 2633 8DAC 04DB 7265 9BB8 5883 6DAA A6D1 2F80
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }
next reply other threads:[~2006-03-16 1:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-16 1:36 Eugene Teo [this message]
2006-03-16 11:08 ` Takashi Iwai
2006-03-16 11:48 ` Eugene Teo
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