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WARNING: CPU: 1 PID: 7534 at drivers/net/ipvlan/ipvlan_l3s.c:148 ipvlan_unregister_nf_hook+0x2b8/0x2f0 drivers/net/ipvlan/ipvlan_l3s.c:148
Modules linked in:
CPU: 1 PID: 7534 Comm: syz-executor.0 Not tainted 5.9.0-rc1-next-20200821-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ipvlan_unregister_nf_hook+0x2b8/0x2f0 drivers/net/ipvlan/ipvlan_l3s.c:148
Code: fc 48 c7 c2 20 0e c3 88 be 2d 00 00 00 48 c7 c7 60 0f c3 88 c6 05 2a f0 f7 05 01 e8 b7 4b 9c fc e9 26 fe ff ff e8 c8 04 b6 fc <0f> 0b 5b 5d 41 5c 41 5d e9 bb 04 b6 fc 4c 89 e7 e8 13 13 f6 fc e9
RSP: 0018:ffffc90007d4f0f0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff84be6ccd
RDX: ffff88808ff86480 RSI: ffffffff84be6df8 RDI: 0000000000000005
RBP: ffff88809231e040 R08: 0000000000000001 R09: ffff88808ff86d68
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88809af2cb00
R13: ffff888093162800 R14: 0000000000000000 R15: 0000000000000001
FS:  000000000196f940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004e0cd0 CR3: 0000000095a65000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ipvlan_l3s_unregister+0xac/0x150 drivers/net/ipvlan/ipvlan_l3s.c:221
 ipvlan_set_port_mode+0x41f/0x4b0 drivers/net/ipvlan/ipvlan_main.c:37
 ipvlan_link_new+0x697/0xc04 drivers/net/ipvlan/ipvlan_main.c:629
 __rtnl_newlink+0x108b/0x1750 net/core/rtnetlink.c:3441
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3500
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5563
 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2470
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:671
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2353
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2407
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2440
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d4d9
Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff630335d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000002cd80 RCX: 000000000045d4d9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005
RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001190a50
R13: 0000000000000000 R14: 0000000000000b36 R15: 000000000118cf4c