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Diffstat (limited to 'src/vnet/ip/reass/ip6_full_reass.c')
-rw-r--r--src/vnet/ip/reass/ip6_full_reass.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/vnet/ip/reass/ip6_full_reass.c b/src/vnet/ip/reass/ip6_full_reass.c
index fc7fa180ab0..c9509e3345e 100644
--- a/src/vnet/ip/reass/ip6_full_reass.c
+++ b/src/vnet/ip/reass/ip6_full_reass.c
@@ -41,6 +41,7 @@ typedef enum
IP6_FULL_REASS_RC_TOO_MANY_FRAGMENTS,
IP6_FULL_REASS_RC_NO_BUF,
IP6_FULL_REASS_RC_HANDOFF,
+ IP6_FULL_REASS_RC_INVALID_FRAG_LEN,
} ip6_full_reass_rc_t;
typedef struct
@@ -888,6 +889,10 @@ ip6_full_reass_update (vlib_main_t *vm, vlib_node_runtime_t *node,
u32 fragment_length =
vlib_buffer_length_in_chain (vm, fb) -
(fvnb->ip.reass.ip6_frag_hdr_offset + sizeof (*frag_hdr));
+ if (0 == fragment_length)
+ {
+ return IP6_FULL_REASS_RC_INVALID_FRAG_LEN;
+ }
u32 fragment_last = fvnb->ip.reass.fragment_last =
fragment_first + fragment_length - 1;
int more_fragments = ip6_frag_hdr_more (frag_hdr);
@@ -1207,6 +1212,9 @@ ip6_full_reassembly_inline (vlib_main_t * vm,
case IP6_FULL_REASS_RC_INTERNAL_ERROR:
counter = IP6_ERROR_REASS_INTERNAL_ERROR;
break;
+ case IP6_FULL_REASS_RC_INVALID_FRAG_LEN:
+ counter = IP6_ERROR_REASS_INVALID_FRAG_LEN;
+ break;
}
if (~0 != counter)
{