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| author | Ilya Maximets <i.maximets@ovn.org> | 2022-07-28 17:43:34 +0200 |
|---|---|---|
| committer | Ilya Maximets <i.maximets@ovn.org> | 2022-08-04 14:09:12 +0200 |
| commit | 0d3a67c462dd138ff7c13cec6cc7320a7ae56daf (patch) | |
| tree | 41cd2ec408cbd6342439c3de1e1711b3c15078b5 | |
| parent | 4e319c98fa5ba1c085ae6c429de1a01412b3bb1f (diff) | |
| download | openvswitch-0d3a67c462dd138ff7c13cec6cc7320a7ae56daf.tar.gz | |
dpif-netlink: Fix incorrect bit shift in compat mode.
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior in
lib/dpif-netlink.c:1077:40: runtime error:
left shift of 1 by 31 places cannot be represented in type 'int'
#0 0x73fc31 in dpif_netlink_port_add_compat lib/dpif-netlink.c:1077:40
#1 0x73fc31 in dpif_netlink_port_add lib/dpif-netlink.c:1132:17
#2 0x2c1745 in dpif_port_add lib/dpif.c:597:13
#3 0x07b279 in port_add ofproto/ofproto-dpif.c:3957:17
#4 0x01b209 in ofproto_port_add ofproto/ofproto.c:2124:13
#5 0xfdbfce in iface_do_create vswitchd/bridge.c:2066:13
#6 0xfdbfce in iface_create vswitchd/bridge.c:2109:13
#7 0xfdbfce in bridge_add_ports__ vswitchd/bridge.c:1173:21
#8 0xfb5319 in bridge_add_ports vswitchd/bridge.c:1189:5
#9 0xfb5319 in bridge_reconfigure vswitchd/bridge.c:901:9
#10 0xfae0f9 in bridge_run vswitchd/bridge.c:3334:9
#11 0xfe67dd in main vswitchd/ovs-vswitchd.c:129:9
#12 0x4b6d8f (/lib/x86_64-linux-gnu/libc.so.6+0x29d8f)
#13 0x4b6e3f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e3f)
#14 0x562594eed024 in _start (vswitchd/ovs-vswitchd+0x787024)
Fixes: 526df7d8543f ("tunnel: Provide framework for tunnel extensions for VXLAN-GBP and others")
Acked-by: Mike Pattrick <mkp@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
| -rw-r--r-- | lib/dpif-netlink.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/dpif-netlink.c b/lib/dpif-netlink.c index 5f4b60c5a..a681fa1b3 100644 --- a/lib/dpif-netlink.c +++ b/lib/dpif-netlink.c @@ -1064,7 +1064,7 @@ dpif_netlink_port_add_compat(struct dpif_netlink *dpif, struct netdev *netdev, ext_ofs = nl_msg_start_nested(&options, OVS_TUNNEL_ATTR_EXTENSION); for (i = 0; i < 32; i++) { - if (tnl_cfg->exts & (1 << i)) { + if (tnl_cfg->exts & (UINT32_C(1) << i)) { nl_msg_put_flag(&options, i); } } |