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-rw-r--r--src/vnet/ip/ip6_reassembly.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/vnet/ip/ip6_reassembly.c b/src/vnet/ip/ip6_reassembly.c
index d448032b913..5a7c081055b 100644
--- a/src/vnet/ip/ip6_reassembly.c
+++ b/src/vnet/ip/ip6_reassembly.c
@@ -451,6 +451,7 @@ ip6_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node,
trim_end = vlib_buffer_length_in_chain (vm, tmp) - data_len -
(vnet_buffer (tmp)->ip.reass.ip6_frag_hdr_offset +
sizeof (*frag_hdr));
+ ASSERT (vlib_buffer_length_in_chain (vm, tmp) - trim_end > 0);
}
u32 keep_data =
vlib_buffer_length_in_chain (vm, tmp) - trim_front - trim_end;