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-rw-r--r--src/vnet/ip/ip4_forward.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index 4a2d413f53a..85e6607a963 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -1174,7 +1174,7 @@ ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
ASSERT (p0->flags & VLIB_BUFFER_NEXT_PRESENT);
p0 = vlib_get_buffer (vm, p0->next_buffer);
data_this_buffer = vlib_buffer_get_current (p0);
- n_this_buffer = p0->current_length;
+ n_this_buffer = clib_min (p0->current_length, n_bytes_left);
}
sum16 = ~ip_csum_fold (sum0);