------------[ cut here ]------------
WARNING: CPU: 1 PID: 30887 at drivers/net/netdevsim/fib.c:448 nsim_fib6_rt_nh_find drivers/net/netdevsim/fib.c:417 [inline]
WARNING: CPU: 1 PID: 30887 at drivers/net/netdevsim/fib.c:448 nsim_fib6_rt_nh_del+0x18f/0x2e0 drivers/net/netdevsim/fib.c:447
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 30887 Comm: syz-executor.0 Not tainted 5.5.0-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+0x1fb/0x318 lib/dump_stack.c:118
 panic+0x264/0x7a9 kernel/panic.c:221
 __warn+0x209/0x210 kernel/panic.c:582
 report_bug+0x1b6/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0xcf/0x1c0 arch/x86/kernel/traps.c:267
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:nsim_fib6_rt_nh_del+0x18f/0x2e0 drivers/net/netdevsim/fib.c:417
Code: 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 e7 e8 8c f7 90 fc 4d 89 2c 24 eb 11 e8 f1 cf 53 fc <0f> 0b e9 f5 00 00 00 e8 e5 cf 53 fc 48 89 d8 48 c1 e8 03 48 b9 00
RSP: 0018:ffffc900041ff808 EFLAGS: 00010287
RAX: ffffffff85232e1f RBX: ffff888094c8cdb8 RCX: 0000000000040000
RDX: ffffc90002439000 RSI: 00000000000012f9 RDI: 00000000000012fa
RBP: ffffc900041ff838 R08: ffffffff8522c336 R09: fffffbfff12d35ed
R10: fffffbfff12d35ed R11: 0000000000000000 R12: ffff88809f0d0600
R13: ffff888094c8cdb8 R14: 1ffff11011bd1a72 R15: ffff88808de8d390
 nsim_fib6_rt_remove drivers/net/netdevsim/fib.c:688 [inline]
 nsim_fib6_event drivers/net/netdevsim/fib.c:725 [inline]
 nsim_fib_event drivers/net/netdevsim/fib.c:744 [inline]
 nsim_fib_event_nb+0x1a82/0x3750 drivers/net/netdevsim/fib.c:772
 notifier_call_chain kernel/notifier.c:83 [inline]
 __atomic_notifier_call_chain+0x18a/0x2f0 kernel/notifier.c:173
 atomic_notifier_call_chain+0x2d/0x40 kernel/notifier.c:183
 call_fib_notifiers+0x34/0x60 net/core/fib_notifier.c:35
 call_fib6_notifiers+0x43/0x60 net/ipv6/fib6_notifier.c:22
 fib6_del_route net/ipv6/ip6_fib.c:399 [inline]
 fib6_del+0xf7c/0x13b0 net/ipv6/ip6_fib.c:2016
 __ip6_del_rt_siblings net/ipv6/route.c:3811 [inline]
 ip6_route_del+0x1a3c/0x2360 net/ipv6/route.c:3959
 ipv6_route_ioctl+0x501/0x910 net/ipv6/route.c:4336
 inet6_ioctl+0x9e/0x150 net/ipv6/af_inet6.c:549
 sock_do_ioctl+0x7c/0x260 net/socket.c:1053
 sock_ioctl+0x464/0x690 net/socket.c:1204
 vfs_ioctl fs/ioctl.c:47 [inline]
 ksys_ioctl fs/ioctl.c:763 [inline]
 __do_sys_ioctl fs/ioctl.c:772 [inline]
 __se_sys_ioctl+0x113/0x190 fs/ioctl.c:770
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:770
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b399
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3f9fbc3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3f9fbc46d4 RCX: 000000000045b399
RDX: 0000000020006b00 RSI: 000000000000890c RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000006ab R14: 00000000004c81c7 R15: 000000000075bf2c
Kernel Offset: disabled
Rebooting in 86400 seconds..