diff mbox series

gro: fix overflow of payload length calculation

Message ID 1545026739-71980-1-git-send-email-jiayu.hu@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers
Series gro: fix overflow of payload length calculation |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/mellanox-Performance-Testing success Performance Testing PASS
ci/intel-Performance-Testing success Performance Testing PASS

Commit Message

Hu, Jiayu Dec. 17, 2018, 6:05 a.m. UTC 
  When the packet length is smaller than the header length,
the calculated payload length will be overflowed and result
in incorrect reassembly behaviors.

Fixes: 1e4cf4d6d4fb ("gro: cleanup")
Fixes: 9e0b9d2ec0f4 ("gro: support VxLAN GRO")
Cc: stable@dpdk.org

Signed-off-by: Jiayu Hu <jiayu.hu@intel.com>
---
 lib/librte_gro/gro_tcp4.c       | 3 ++-
 lib/librte_gro/gro_vxlan_tcp4.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

Comments

Thomas Monjalon Dec. 19, 2018, 3:31 a.m. UTC | #1 
17/12/2018 07:05, Jiayu Hu:
> When the packet length is smaller than the header length,
> the calculated payload length will be overflowed and result
> in incorrect reassembly behaviors.
> 
> Fixes: 1e4cf4d6d4fb ("gro: cleanup")
> Fixes: 9e0b9d2ec0f4 ("gro: support VxLAN GRO")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Jiayu Hu <jiayu.hu@intel.com>

Applied, thanks
diff mbox series

Patch

diff --git a/lib/librte_gro/gro_tcp4.c b/lib/librte_gro/gro_tcp4.c
index 2c0f35c..2fe9aab 100644
--- a/lib/librte_gro/gro_tcp4.c
+++ b/lib/librte_gro/gro_tcp4.c
@@ -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;
diff --git a/lib/librte_gro/gro_vxlan_tcp4.c b/lib/librte_gro/gro_vxlan_tcp4.c
index ca86f01..955ae4b 100644
--- a/lib/librte_gro/gro_vxlan_tcp4.c
+++ b/lib/librte_gro/gro_vxlan_tcp4.c
@@ -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;