Insufficient input validation in NE2000 card, written by Tavis Ormandy,
contributed by Aurelien Jarno. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3019 c046a42c-6fe2-441c-8c8c-71466251a162
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@ -224,7 +224,7 @@ static void ne2000_receive(void *opaque, const uint8_t *buf, int size)
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{
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NE2000State *s = opaque;
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uint8_t *p;
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int total_len, next, avail, len, index, mcast_idx;
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unsigned int total_len, next, avail, len, index, mcast_idx;
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uint8_t buf1[60];
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static const uint8_t broadcast_macaddr[6] =
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{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
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@ -293,7 +293,10 @@ static void ne2000_receive(void *opaque, const uint8_t *buf, int size)
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/* write packet data */
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while (size > 0) {
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if (index <= s->stop)
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avail = s->stop - index;
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else
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avail = 0;
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len = size;
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if (len > avail)
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len = avail;
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