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WARNING: CPU: 0 PID: 7419 at drivers/net/ipvlan/ipvlan_l3s.c:148 ipvlan_unregister_nf_hook+0x2b8/0x2f0 drivers/net/ipvlan/ipvlan_l3s.c:148
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 7419 Comm: syz-executor539 Not tainted 5.8.0-rc7-next-20200730-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x18f/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:231
 __warn.cold+0x20/0x4a kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:ipvlan_unregister_nf_hook+0x2b8/0x2f0 drivers/net/ipvlan/ipvlan_l3s.c:148
Code: fc 48 c7 c2 a0 cc c2 88 be 2d 00 00 00 48 c7 c7 e0 cd c2 88 c6 05 8f 83 f8 05 01 e8 a7 81 9e fc e9 26 fe ff ff e8 28 25 b8 fc <0f> 0b 5b 5d 41 5c 41 5d e9 1b 25 b8 fc 4c 89 e7 e8 c3 45 f8 fc e9
RSP: 0018:ffffc900077ef0f0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff84bc195d
RDX: ffff88809e172180 RSI: ffffffff84bc1a88 RDI: 0000000000000005
RBP: ffff8880a7e92040 R08: 0000000000000001 R09: ffff88809e172a48
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880a75ca780
R13: ffff888092a4f800 R14: 0000000000000000 R15: 0000000000000001
 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:611
 __rtnl_newlink+0x1090/0x1750 net/core/rtnetlink.c:3338
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3397
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5460
 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:2359
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2413
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2446
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x449929
Code: e8 0c 0f 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 eb 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffc3fdad1e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000449929
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005
RBP: 00007ffc3fdad220 R08: 00000000000000ff R09: 00000000000000ff
R10: 00000000000000ff R11: 0000000000000246 R12: 000000000008fd99
R13: 0000000000000000 R14: 0000000001860850 R15: 0000000000000001
Kernel Offset: disabled
Rebooting in 86400 seconds..