diff options
| author | Zhang Chen <chen.zhang@intel.com> | 2022-04-01 11:47:02 +0800 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2022-07-20 16:58:08 +0800 |
| commit | 8bdab83b34efb0b598be4e5b98e4f466ca5f2f80 (patch) | |
| tree | 0570f963a7bae97582560d79ba59ff1abee7bf19 /target | |
| parent | 94c36c48751bf5ff644e6c8e17a21003edacfc5d (diff) | |
net/colo.c: fix segmentation fault when packet is not parsed correctly
When COLO use only one vnet_hdr_support parameter between
filter-redirector and filter-mirror(or colo-compare), COLO will crash
with segmentation fault. Back track as follow:
Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault.
0x0000555555cb200b in eth_get_l2_hdr_length (p=0x0)
at /home/tao/project/COLO/colo-qemu/include/net/eth.h:296
296 uint16_t proto = be16_to_cpu(PKT_GET_ETH_HDR(p)->h_proto);
(gdb) bt
0 0x0000555555cb200b in eth_get_l2_hdr_length (p=0x0)
at /home/tao/project/COLO/colo-qemu/include/net/eth.h:296
1 0x0000555555cb22b4 in parse_packet_early (pkt=0x555556a44840) at
net/colo.c:49
2 0x0000555555cb2b91 in is_tcp_packet (pkt=0x555556a44840) at
net/filter-rewriter.c:63
So wrong vnet_hdr_len will cause pkt->data become NULL. Add check to
raise error and add trace-events to track vnet_hdr_len.
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'target')
0 files changed, 0 insertions, 0 deletions