device gretap0 entered promiscuous mode device erspan0 entered promiscuous mode device ip_vti0 entered promiscuous mode device ip6_vti0 entered promiscuous mode device sit0 entered promiscuous mode ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3970 at drivers/net/netdevsim/fib.c:448 nsim_fib6_rt_nh_find drivers/net/netdevsim/fib.c:417 [inline] WARNING: CPU: 0 PID: 3970 at drivers/net/netdevsim/fib.c:448 nsim_fib6_rt_nh_del+0x149/0x280 drivers/net/netdevsim/fib.c:447 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3970 Comm: syz-executor.2 Not tainted 5.6.0-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+0x1e9/0x30e lib/dump_stack.c:118 panic+0x264/0x7a0 kernel/panic.c:221 __warn+0x209/0x210 kernel/panic.c:582 report_bug+0x1ac/0x2d0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0xca/0x1c0 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:nsim_fib6_rt_nh_del+0x149/0x280 drivers/net/netdevsim/fib.c:417 Code: 05 e8 8b c7 a1 fc 4d 89 65 08 4c 89 e0 48 c1 e8 03 80 3c 28 00 74 08 4c 89 e7 e8 72 c7 a1 fc 4d 89 2c 24 eb 1b e8 a7 5c 65 fc <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 91 5c 65 fc RSP: 0000:ffffc90011ba6a18 EFLAGS: 00010246 RAX: ffffffff850fc019 RBX: ffff8880a451b6b8 RCX: 0000000000040000 RDX: ffffc9000da7d000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: dffffc0000000000 R08: ffffffff850f5827 R09: fffffbfff1296485 R10: fffffbfff1296485 R11: 0000000000000000 R12: ffff8880910c7000 R13: ffff8880a451b6b8 R14: 1ffff11014c98982 R15: ffff8880a64c4c10 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+0x18b3/0x3600 drivers/net/netdevsim/fib.c:772 notifier_call_chain kernel/notifier.c:83 [inline] __atomic_notifier_call_chain+0x18e/0x2e0 kernel/notifier.c:173 call_fib_notifiers+0x2d/0x60 net/core/fib_notifier.c:35 fib6_del_route net/ipv6/ip6_fib.c:399 [inline] fib6_del+0xf6a/0x13a0 net/ipv6/ip6_fib.c:2017 fib6_clean_node+0x2ba/0x520 net/ipv6/ip6_fib.c:2179 fib6_walk_continue+0x65c/0x8e0 net/ipv6/ip6_fib.c:2101 fib6_walk net/ipv6/ip6_fib.c:2149 [inline] fib6_clean_tree net/ipv6/ip6_fib.c:2229 [inline] __fib6_clean_all+0x477/0x830 net/ipv6/ip6_fib.c:2245 rt6_sync_down_dev net/ipv6/route.c:4755 [inline] rt6_disable_ip+0x10a/0x5c0 net/ipv6/route.c:4760 addrconf_ifdown+0xad/0x1690 net/ipv6/addrconf.c:3714 addrconf_notify+0x407/0x3ad0 net/ipv6/addrconf.c:3639 notifier_call_chain kernel/notifier.c:83 [inline] __raw_notifier_call_chain kernel/notifier.c:361 [inline] raw_notifier_call_chain+0xd4/0x170 kernel/notifier.c:368 __dev_notify_flags+0x253/0x4d0 net/core/dev.c:1948 dev_change_flags+0xe3/0x190 net/core/dev.c:8219 do_setlink+0xb17/0x3880 net/core/rtnetlink.c:2596 rtnl_group_changelink net/core/rtnetlink.c:3103 [inline] __rtnl_newlink net/core/rtnetlink.c:3257 [inline] rtnl_newlink+0x10b2/0x1c00 net/core/rtnetlink.c:3377 rtnetlink_rcv_msg+0x889/0xd40 net/core/rtnetlink.c:5436 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1329 netlink_sendmsg+0xa57/0xd70 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x4f9/0x7c0 net/socket.c:2362 ___sys_sendmsg net/socket.c:2416 [inline] __sys_sendmsg+0x2a6/0x360 net/socket.c:2449 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c849 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:00007f1405f5cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f1405f5d6d4 RCX: 000000000045c849 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009fc R14: 00000000004ccb3c R15: 000000000076bfac Kernel Offset: disabled Rebooting in 86400 seconds..