Blame qemu-CVE-2012-0029.patch
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diff -rup qemu-kvm-0.15.1/hw/e1000.c me/hw/e1000.c
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--- qemu-kvm-0.15.1/hw/e1000.c 2011-10-19 09:54:48.000000000 -0400
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+++ me/hw/e1000.c 2012-05-29 09:28:15.832104874 -0400
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@@ -472,6 +472,8 @@ process_tx_desc(E1000State *s, struct e1
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bytes = split_size;
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if (tp->size + bytes > msh)
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bytes = msh - tp->size;
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+
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+ bytes = MIN(sizeof(tp->data) - tp->size, bytes);
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cpu_physical_memory_read(addr, tp->data + tp->size, bytes);
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if ((sz = tp->size + bytes) >= hdr && tp->size < hdr)
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memmove(tp->header, tp->data, hdr);
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@@ -487,6 +489,7 @@ process_tx_desc(E1000State *s, struct e1
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// context descriptor TSE is not set, while data descriptor TSE is set
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DBGOUT(TXERR, "TCP segmentaion Error\n");
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} else {
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+ split_size = MIN(sizeof(tp->data) - tp->size, split_size);
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cpu_physical_memory_read(addr, tp->data + tp->size, split_size);
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tp->size += split_size;
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}
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