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gro: fix overflow of payload length calculation

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When the packet length is smaller than the header length,
the calculated payload length will be overflowed and result
in incorrect reassembly behaviors.

Fixes: 1e4cf4d6d4 ("gro: cleanup")
Fixes: 9e0b9d2ec0 ("gro: support VxLAN GRO")
Cc: stable@dpdk.org

Signed-off-by: Jiayu Hu <jiayu.hu@intel.com>
This commit is contained in:
Jiayu Hu 2018-12-17 14:05:39 +08:00 committed by Thomas Monjalon
parent 0a529578f1
commit f8a05885e7
2 changed files with 4 additions and 2 deletions
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3
lib/librte_gro/gro_tcp4.c
View File

@ -198,7 +198,8 @@ gro_tcp4_reassemble(struct rte_mbuf *pkt,
struct ipv4_hdr *ipv4_hdr;
struct tcp_hdr *tcp_hdr;
uint32_t sent_seq;
uint16_t tcp_dl, ip_id, hdr_len, frag_off;
int32_t tcp_dl;
uint16_t ip_id, hdr_len, frag_off;
uint8_t is_atomic;
struct tcp4_flow_key key;

3
lib/librte_gro/gro_vxlan_tcp4.c
View File

@ -295,7 +295,8 @@ gro_vxlan_tcp4_reassemble(struct rte_mbuf *pkt,
struct udp_hdr *udp_hdr;
struct vxlan_hdr *vxlan_hdr;
uint32_t sent_seq;
uint16_t tcp_dl, frag_off, outer_ip_id, ip_id;
int32_t tcp_dl;
uint16_t frag_off, outer_ip_id, ip_id;
uint8_t outer_is_atomic, is_atomic;
struct vxlan_tcp4_flow_key key;