linux-kernel - something odd in emu10k1/emufx

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Message-ID: <20080119021614.GD27894@ZenIV.linux.org.uk>
Date:	Sat, 19 Jan 2008 02:16:14 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	tiwai@...e.de
Cc:	linux-kernel@...r.kernel.org
Subject: something odd in emu10k1/emufx

In copy_tlv() we have
        tlv = kmalloc(data[1] * 4 + sizeof(data), GFP_KERNEL);
        if (!tlv)
                return NULL;
        memcpy(tlv, data, sizeof(data));
        if (copy_from_user(tlv + 2, _tlv + 2, data[1])) {
                kfree(tlv);
                return NULL;
        }
which looks rather odd, since either we kmalloc too much or copy too little...
Comments?
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