program: r0 = syz_open_dev$radio(&(0x7f0000000000), 0x3, 0x2) ioctl$VIDIOC_S_EXT_CTRLS(r0, 0xc0205648, &(0x7f0000000100)={0x0, 0x1, 0x0, 0xffffffffffffffff, 0x0, &(0x7f0000000200)={0x9b090c, 0x0, '\x00', @value64}}) r1 = socket$inet6_mptcp(0xa, 0x1, 0x106) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'veth1_to_bridge\x00', 0x0}) r3 = socket$inet6_mptcp(0xa, 0x1, 0x106) (async) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f00000000c0)={0x0}}, 0x0) (async) r4 = socket$netlink(0x10, 0x3, 0x0) (async) r5 = socket$inet6_tcp(0xa, 0x1, 0x0) (async) bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="1e000000061844f66c6df20008"], 0x48) (async) r6 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r6, 0x40946400, &(0x7f0000000300)={'pcl812\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x6, 0xffe, 0x9, 0xc, 0x1, 0x4, 0x4, 0xffff, 0x6, 0x5, 0x40000009, 0x830, 0x30000, 0x10000, 0x9, 0x800, 0xe2df, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) (async) ioctl$COMEDI_INSN(r6, 0x8028640c, &(0x7f0000000000)={0x4000000, 0xf, &(0x7f0000000080)=[0x3, 0xfff, 0x4, 0xb, 0x660, 0xfffffff9, 0xe0, 0xfffffff7, 0x9, 0xf5, 0xffffffff, 0x2, 0x200, 0x4, 0x6], 0x0, 0x4}) ioctl$sock_SIOCSIFVLAN_DEL_VLAN_CMD(r5, 0x890b, &(0x7f0000000000)={0xffffc0fe, 'vlan0\x00'}) (async) r7 = socket$inet6_tcp(0xa, 0x1, 0x0) (async) r8 = socket$inet6_mptcp(0xa, 0x1, 0x106) ioctl$sock_SIOCGIFINDEX(r8, 0x8933, &(0x7f0000000040)={'veth1_to_bridge\x00', 0x0}) ioctl$sock_inet6_SIOCADDRT(r8, 0x890b, &(0x7f0000000540)={@rand_addr=' \x01\x00', @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01', @private1, 0x6, 0x0, 0x0, 0x0, 0x0, 0x4400047, r9}) (async) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000300)=ANY=[@ANYBLOB="4c0000001800010d00000000000000850a000000000000000500000014000500200100000000000000000100000000001c00090008000000", @ANYRES32=r7], 0x4c}}, 0x0) (async) sendmmsg(r4, &(0x7f00000002c0), 0x40000000000009f, 0x0) (async) ioctl$sock_inet6_SIOCADDRT(r1, 0x890b, &(0x7f0000000540)={@rand_addr=' \x01\x00', @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', @private1, 0x0, 0x0, 0x0, 0x0, 0x40000000, 0x4400046, r2}) (async) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000000)={'wlan0\x00', 0x0}) (async) r11 = socket$inet6_mptcp(0xa, 0x1, 0x106) ioctl$sock_inet6_SIOCADDRT(r11, 0x890b, &(0x7f0000000540)={@empty, @rand_addr=' \x01\x00', @rand_addr=' \x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, r10}) syz_emit_ethernet(0x50, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "127f92", 0x1a, 0x3a, 0xff, @remote, @mcast2, {[], @echo_request={0x80, 0x0, 0x0, 0xebd, 0x66, "ff89d0335fe17e758c307ed015240f349ce5"}}}}}}, 0x0) (async) r12 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r12, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=@ipv6_newroute={0x24, 0x18, 0x1ef, 0x0, 0x0, {0xa, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3800}, [@RTA_ENCAP_TYPE={0x6, 0x15, 0x2}]}, 0x24}, 0x1, 0x11, 0x0, 0x80}, 0x4008002) [ 74.657549][ T4683] Bluetooth: hci0: command tx timeout [ 74.843169][ T5337] ------------[ cut here ]------------ [ 74.845839][ T5337] WARNING: drivers/net/netdevsim/fib.c:831 at nsim_fib_event_nb+0xed8/0x1080, CPU#0: syz.0.0/5337 [ 74.850502][ T5337] Modules linked in: [ 74.852376][ T5337] CPU: 0 UID: 0 PID: 5337 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 74.856681][ T5337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.861342][ T5337] RIP: 0010:nsim_fib_event_nb+0xed8/0x1080 [ 74.863931][ T5337] Code: fa be 02 00 00 00 eb 0a e8 b5 52 d6 fa be 01 00 00 00 4c 89 f7 e8 c8 d3 a4 fd 4c 8b 64 24 08 e9 91 f4 ff ff e8 99 52 d6 fa 90 <0f> 0b 90 e9 70 fb ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 35 [ 74.872460][ T5337] RSP: 0018:ffffc9000d8eef08 EFLAGS: 00010293 [ 74.875152][ T5337] RAX: ffffffff86eab4c7 RBX: 0000000000000001 RCX: ffff888036f24980 [ 74.878545][ T5337] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 74.881870][ T5337] RBP: dffffc0000000000 R08: ffff8880110ac42f R09: 1ffff11002215885 [ 74.885452][ T5337] R10: dffffc0000000000 R11: ffffed1002215886 R12: ffff888042b47000 [ 74.888922][ T5337] R13: ffffc9000d8ef080 R14: 0000000000000000 R15: ffffc9000d8ef098 [ 74.892522][ T5337] FS: 00007f07b7a3c6c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000 [ 74.896648][ T5337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.899568][ T5337] CR2: 00007f07b7a1afc8 CR3: 0000000011881000 CR4: 0000000000352ef0 [ 74.903113][ T5337] Call Trace: [ 74.904851][ T5337] [ 74.906291][ T5337] notifier_call_chain+0x19d/0x3a0 [ 74.908561][ T5337] ? atomic_notifier_call_chain+0x26/0x180 [ 74.911287][ T5337] atomic_notifier_call_chain+0xda/0x180 [ 74.913906][ T5337] call_fib_notifiers+0x31/0x60 [ 74.916274][ T5337] call_fib6_multipath_entry_notifiers+0xe6/0x150 [ 74.919087][ T5337] ? inet6_rtm_newroute+0xe8b/0x18c0 [ 74.921485][ T5337] ? __pfx_call_fib6_multipath_entry_notifiers+0x10/0x10 [ 74.924807][ T5337] ? inet6_rtm_newroute+0xe8b/0x18c0 [ 74.927176][ T5337] inet6_rtm_newroute+0x12f5/0x18c0 [ 74.929531][ T5337] ? kasan_quarantine_put+0xbb/0x1f0 [ 74.931987][ T5337] ? lockdep_hardirqs_on+0x7b/0x110 [ 74.934914][ T5337] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 74.937703][ T5337] ? kmem_cache_free+0x197/0x620 [ 74.940001][ T5337] ? nlmon_xmit+0xb0/0x100 [ 74.942115][ T5337] ? lockdep_hardirqs_on+0x7b/0x110 [ 74.944503][ T5337] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 74.947090][ T5337] rtnetlink_rcv_msg+0x7cf/0xb70 [ 74.949306][ T5337] ? rtnetlink_rcv_msg+0x1ab/0xb70 [ 74.951589][ T5337] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 74.953985][ T5337] ? ref_tracker_free+0x63a/0x7d0 [ 74.956381][ T5337] ? __asan_memcpy+0x40/0x70 [ 74.958458][ T5337] ? __pfx_ref_tracker_free+0x10/0x10 [ 74.960905][ T5337] ? __skb_clone+0x63/0x7a0 [ 74.962934][ T5337] netlink_rcv_skb+0x208/0x470 [ 74.965247][ T5337] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 74.967665][ T5337] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 74.970034][ T5337] ? netlink_deliver_tap+0x2e/0x1b0 [ 74.972315][ T5337] netlink_unicast+0x82f/0x9e0 [ 74.974453][ T5337] ? __pfx_netlink_unicast+0x10/0x10 [ 74.976807][ T5337] ? __alloc_skb+0x198/0x3a0 [ 74.978929][ T5337] ? netlink_sendmsg+0x642/0xb30 [ 74.981094][ T5337] ? skb_put+0x11b/0x210 [ 74.982936][ T5337] netlink_sendmsg+0x805/0xb30 [ 74.985243][ T5337] ? __pfx_netlink_sendmsg+0x10/0x10 [ 74.987368][ T5337] ? aa_sock_msg_perm+0xf1/0x1b0 [ 74.989648][ T5337] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 74.992101][ T5337] ? __pfx_netlink_sendmsg+0x10/0x10 [ 74.994658][ T5337] __sock_sendmsg+0x21c/0x270 [ 74.996733][ T5337] ____sys_sendmsg+0x52d/0x820 [ 74.998956][ T5337] ? __pfx_____sys_sendmsg+0x10/0x10 [ 75.001409][ T5337] ? import_iovec+0x74/0xa0 [ 75.003450][ T5337] ___sys_sendmsg+0x21f/0x2a0 [ 75.005604][ T5337] ? __pfx____sys_sendmsg+0x10/0x10 [ 75.007708][ T5337] ? __pfx_futex_wake_mark+0x10/0x10 [ 75.009982][ T5337] ? __fget_files+0x2a/0x420 [ 75.012121][ T5337] ? __fget_files+0x3a0/0x420 [ 75.014332][ T5337] __sys_sendmmsg+0x227/0x430 [ 75.016638][ T5337] ? __pfx___sys_sendmmsg+0x10/0x10 [ 75.019727][ T5337] ? do_futex+0x333/0x420 [ 75.021677][ T5337] ? fdget+0x184/0x1e0 [ 75.023538][ T5337] ? rcu_is_watching+0x15/0xb0 [ 75.026086][ T5337] __x64_sys_sendmmsg+0xa0/0xc0 [ 75.028220][ T5337] do_syscall_64+0xec/0xf80 [ 75.030169][ T5337] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.032818][ T5337] ? trace_irq_disable+0x37/0x100 [ 75.035416][ T5337] ? clear_bhb_loop+0x60/0xb0 [ 75.038073][ T5337] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.040621][ T5337] RIP: 0033:0x7f07b6b8f7c9 [ 75.042752][ T5337] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 75.051964][ T5337] RSP: 002b:00007f07b7a3c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 75.055857][ T5337] RAX: ffffffffffffffda RBX: 00007f07b6de5fa0 RCX: 00007f07b6b8f7c9 [ 75.059535][ T5337] RDX: 040000000000009f RSI: 00002000000002c0 RDI: 0000000000000006 [ 75.063076][ T5337] RBP: 00007f07b6c13f91 R08: 0000000000000000 R09: 0000000000000000 [ 75.066936][ T5337] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.070407][ T5337] R13: 00007f07b6de6038 R14: 00007f07b6de5fa0 R15: 00007ffeba6f9288 [ 75.073735][ T5337] [ 75.075306][ T5337] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 75.078052][ T5337] CPU: 0 UID: 0 PID: 5337 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 75.081622][ T5337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.086048][ T5337] Call Trace: [ 75.087504][ T5337] [ 75.088801][ T5337] vpanic+0x1e0/0x670 [ 75.090434][ T5337] panic+0xb9/0xc0 [ 75.092081][ T5337] ? __pfx_panic+0x10/0x10 [ 75.094132][ T5337] __warn+0x317/0x4b0 [ 75.095869][ T5337] ? nsim_fib_event_nb+0xed8/0x1080 [ 75.098190][ T5337] ? nsim_fib_event_nb+0xed8/0x1080 [ 75.100318][ T5337] __report_bug+0x288/0x500 [ 75.102371][ T5337] ? inet6_rtm_newroute+0x12f5/0x18c0 [ 75.104608][ T5337] ? rtnetlink_rcv_msg+0x7cf/0xb70 [ 75.106712][ T5337] ? netlink_rcv_skb+0x208/0x470 [ 75.108803][ T5337] ? nsim_fib_event_nb+0xed8/0x1080 [ 75.110915][ T5337] ? __pfx___report_bug+0x10/0x10 [ 75.113036][ T5337] ? nsim_fib_event_nb+0xed8/0x1080 [ 75.115144][ T5337] report_bug+0x16a/0x220 [ 75.116865][ T5337] ? nsim_fib_event_nb+0xed8/0x1080 [ 75.119263][ T5337] ? nsim_fib_event_nb+0xeda/0x1080 [ 75.121443][ T5337] handle_bug+0x98/0x200 [ 75.123271][ T5337] exc_invalid_op+0x1a/0x50 [ 75.125290][ T5337] asm_exc_invalid_op+0x1a/0x20 [ 75.127253][ T5337] RIP: 0010:nsim_fib_event_nb+0xed8/0x1080 [ 75.129405][ T5337] Code: fa be 02 00 00 00 eb 0a e8 b5 52 d6 fa be 01 00 00 00 4c 89 f7 e8 c8 d3 a4 fd 4c 8b 64 24 08 e9 91 f4 ff ff e8 99 52 d6 fa 90 <0f> 0b 90 e9 70 fb ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 35 [ 75.138161][ T5337] RSP: 0018:ffffc9000d8eef08 EFLAGS: 00010293 [ 75.141749][ T5337] RAX: ffffffff86eab4c7 RBX: 0000000000000001 RCX: ffff888036f24980 [ 75.146464][ T5337] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 75.150140][ T5337] RBP: dffffc0000000000 R08: ffff8880110ac42f R09: 1ffff11002215885 [ 75.153843][ T5337] R10: dffffc0000000000 R11: ffffed1002215886 R12: ffff888042b47000 [ 75.157552][ T5337] R13: ffffc9000d8ef080 R14: 0000000000000000 R15: ffffc9000d8ef098 [ 75.161295][ T5337] ? nsim_fib_event_nb+0xed7/0x1080 [ 75.163768][ T5337] ? nsim_fib_event_nb+0xed7/0x1080 [ 75.166329][ T5337] notifier_call_chain+0x19d/0x3a0 [ 75.168517][ T5337] ? atomic_notifier_call_chain+0x26/0x180 [ 75.171405][ T5337] atomic_notifier_call_chain+0xda/0x180 [ 75.174229][ T5337] call_fib_notifiers+0x31/0x60 [ 75.176727][ T5337] call_fib6_multipath_entry_notifiers+0xe6/0x150 [ 75.179656][ T5337] ? inet6_rtm_newroute+0xe8b/0x18c0 [ 75.182024][ T5337] ? __pfx_call_fib6_multipath_entry_notifiers+0x10/0x10 [ 75.184868][ T5337] ? inet6_rtm_newroute+0xe8b/0x18c0 [ 75.186970][ T5337] inet6_rtm_newroute+0x12f5/0x18c0 [ 75.188963][ T5337] ? kasan_quarantine_put+0xbb/0x1f0 [ 75.191095][ T5337] ? lockdep_hardirqs_on+0x7b/0x110 [ 75.193340][ T5337] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 75.195956][ T5337] ? kmem_cache_free+0x197/0x620 [ 75.198333][ T5337] ? nlmon_xmit+0xb0/0x100 [ 75.200521][ T5337] ? lockdep_hardirqs_on+0x7b/0x110 [ 75.203045][ T5337] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 75.205663][ T5337] rtnetlink_rcv_msg+0x7cf/0xb70 [ 75.207849][ T5337] ? rtnetlink_rcv_msg+0x1ab/0xb70 [ 75.210109][ T5337] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 75.212407][ T5337] ? ref_tracker_free+0x63a/0x7d0 [ 75.214747][ T5337] ? __asan_memcpy+0x40/0x70 [ 75.216785][ T5337] ? __pfx_ref_tracker_free+0x10/0x10 [ 75.218953][ T5337] ? __skb_clone+0x63/0x7a0 [ 75.220743][ T5337] netlink_rcv_skb+0x208/0x470 [ 75.222632][ T5337] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 75.224866][ T5337] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 75.227362][ T5337] ? netlink_deliver_tap+0x2e/0x1b0 [ 75.229226][ T5337] netlink_unicast+0x82f/0x9e0 [ 75.231147][ T5337] ? __pfx_netlink_unicast+0x10/0x10 [ 75.233445][ T5337] ? __alloc_skb+0x198/0x3a0 [ 75.235522][ T5337] ? netlink_sendmsg+0x642/0xb30 [ 75.237671][ T5337] ? skb_put+0x11b/0x210 [ 75.239675][ T5337] netlink_sendmsg+0x805/0xb30 [ 75.241904][ T5337] ? __pfx_netlink_sendmsg+0x10/0x10 [ 75.244293][ T5337] ? aa_sock_msg_perm+0xf1/0x1b0 [ 75.246529][ T5337] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 75.248986][ T5337] ? __pfx_netlink_sendmsg+0x10/0x10 [ 75.251333][ T5337] __sock_sendmsg+0x21c/0x270 [ 75.253356][ T5337] ____sys_sendmsg+0x52d/0x820 [ 75.255526][ T5337] ? __pfx_____sys_sendmsg+0x10/0x10 [ 75.257900][ T5337] ? import_iovec+0x74/0xa0 [ 75.259942][ T5337] ___sys_sendmsg+0x21f/0x2a0 [ 75.261933][ T5337] ? __pfx____sys_sendmsg+0x10/0x10 [ 75.264066][ T5337] ? __pfx_futex_wake_mark+0x10/0x10 [ 75.266158][ T5337] ? __fget_files+0x2a/0x420 [ 75.267964][ T5337] ? __fget_files+0x3a0/0x420 [ 75.269981][ T5337] __sys_sendmmsg+0x227/0x430 [ 75.272073][ T5337] ? __pfx___sys_sendmmsg+0x10/0x10 [ 75.274467][ T5337] ? do_futex+0x333/0x420 [ 75.276434][ T5337] ? fdget+0x184/0x1e0 [ 75.278252][ T5337] ? rcu_is_watching+0x15/0xb0 [ 75.280271][ T5337] __x64_sys_sendmmsg+0xa0/0xc0 [ 75.282558][ T5337] do_syscall_64+0xec/0xf80 [ 75.284672][ T5337] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.287302][ T5337] ? trace_irq_disable+0x37/0x100 [ 75.289528][ T5337] ? clear_bhb_loop+0x60/0xb0 [ 75.291610][ T5337] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.294171][ T5337] RIP: 0033:0x7f07b6b8f7c9 [ 75.296133][ T5337] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 75.304373][ T5337] RSP: 002b:00007f07b7a3c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 75.307828][ T5337] RAX: ffffffffffffffda RBX: 00007f07b6de5fa0 RCX: 00007f07b6b8f7c9 [ 75.311076][ T5337] RDX: 040000000000009f RSI: 00002000000002c0 RDI: 0000000000000006 [ 75.314421][ T5337] RBP: 00007f07b6c13f91 R08: 0000000000000000 R09: 0000000000000000 [ 75.317846][ T5337] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.321164][ T5337] R13: 00007f07b6de6038 R14: 00007f07b6de5fa0 R15: 00007ffeba6f9288 [ 75.324529][ T5337] [ 75.326200][ T5337] Kernel Offset: disabled [ 75.328081][ T5337] Rebooting in 86400 seconds..