[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.77' (ECDSA) to the list of known hosts. syzkaller login: [ 36.195201] IPVS: ftp: loaded support on port[0] = 21 [ 36.272014] chnl_net:caif_netlink_parms(): no params data found [ 36.333902] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.340431] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.348587] device bridge_slave_0 entered promiscuous mode [ 36.355767] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.362293] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.369329] device bridge_slave_1 entered promiscuous mode [ 36.387362] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 36.396153] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 36.414224] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 36.421903] team0: Port device team_slave_0 added [ 36.427258] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 36.434838] team0: Port device team_slave_1 added [ 36.449728] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 36.456025] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 36.481246] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 36.492535] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 36.498780] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 36.524266] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 36.538386] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 36.545935] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 36.564772] device hsr_slave_0 entered promiscuous mode [ 36.570454] device hsr_slave_1 entered promiscuous mode [ 36.576812] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 36.584087] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 36.649035] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.655477] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.662750] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.669127] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.699723] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 36.707036] 8021q: adding VLAN 0 to HW filter on device bond0 [ 36.715762] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 36.724882] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 36.733770] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.741058] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.747957] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 36.759576] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 36.765724] 8021q: adding VLAN 0 to HW filter on device team0 [ 36.774951] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 36.782759] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.789105] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.798837] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 36.807377] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.813758] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.831284] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 36.839047] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 36.848764] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 36.856062] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 36.866631] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 36.879410] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 36.885783] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 36.898706] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 36.906422] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 36.913207] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 36.924353] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 36.957316] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 36.967246] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 36.997853] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 37.005633] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 37.012881] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 37.022565] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.029919] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 37.037162] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 37.045588] device veth0_vlan entered promiscuous mode [ 37.054752] device veth1_vlan entered promiscuous mode [ 37.060789] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 37.069004] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 37.080120] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 37.089491] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 37.096796] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 37.104305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.113946] device veth0_macvtap entered promiscuous mode [ 37.120031] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 37.128668] device veth1_macvtap entered promiscuous mode [ 37.137301] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 37.146509] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 37.156647] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 37.163820] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 37.172574] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 37.183492] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 37.190178] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 37.279501] device syz_tun entered promiscuous mode [ 37.284896] device batadv_slave_0 entered promiscuous mode [ 37.328890] kasan: CONFIG_KASAN_INLINE enabled [ 37.334061] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.342566] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.348816] CPU: 1 PID: 8329 Comm: syz-executor186 Not tainted 4.19.211-syzkaller #0 [ 37.356673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.366016] RIP: 0010:hsr_check_carrier_and_operstate+0x3f/0x810 [ 37.372141] Code: f9 be 04 00 00 00 48 89 ef e8 cd a8 ff ff 49 89 c6 48 83 c0 10 48 89 c2 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 64 07 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b [ 37.391066] RSP: 0018:ffff888095b36cb8 EFLAGS: 00010202 [ 37.396410] RAX: dffffc0000000000 RBX: ffff8880959d0700 RCX: ffffffff87ea889e [ 37.403659] RDX: 0000000000000002 RSI: ffffffff87ea88a7 RDI: 0000000000000004 [ 37.410906] RBP: ffff888094445000 R08: 0000000000000000 R09: 0000000000000002 [ 37.418159] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000001 [ 37.425405] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff8b0bcc40 [ 37.432740] FS: 00007eff32c97700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 37.440946] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.446804] CR2: 00007eff32c97718 CR3: 000000009939a000 CR4: 00000000003406e0 [ 37.454833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.462079] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.469330] Call Trace: [ 37.471999] hsr_netdev_notify+0x270/0x9f0 [ 37.476219] notifier_call_chain+0xc0/0x230 [ 37.480533] netdev_state_change+0x100/0x130 [ 37.485022] ? dev_get_valid_name+0xe0/0xe0 [ 37.489338] ? nla_parse+0x1b2/0x290 [ 37.493058] do_setlink+0x2c8a/0x3540 [ 37.496861] ? rtnl_fdb_add+0xa10/0xa10 [ 37.500830] ? __sanitizer_cov_trace_switch+0x4b/0x80 [ 37.506002] ? validate_nla+0x270/0x820 [ 37.509959] ? nla_parse+0x1b2/0x290 [ 37.513655] rtnl_newlink+0xbc9/0x15c0 [ 37.517527] ? rtnl_getlink+0x620/0x620 [ 37.521488] ? mark_held_locks+0xf0/0xf0 [ 37.525550] ? unwind_next_frame+0xeee/0x1400 [ 37.530030] ? __save_stack_trace+0x72/0x190 [ 37.534427] ? deref_stack_reg+0x134/0x1d0 [ 37.538640] ? get_reg+0x176/0x1f0 [ 37.542162] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 37.548031] ? deref_stack_reg+0x1d0/0x1d0 [ 37.552249] ? is_bpf_text_address+0xd5/0x1b0 [ 37.556731] ? lock_downgrade+0x720/0x720 [ 37.560862] ? lock_acquire+0x170/0x3c0 [ 37.564813] ? __bpf_address_lookup+0x330/0x330 [ 37.569463] ? check_preemption_disabled+0x41/0x280 [ 37.574461] ? is_bpf_text_address+0xfc/0x1b0 [ 37.578933] ? kernel_text_address+0xbd/0xf0 [ 37.583320] ? __kernel_text_address+0x9/0x30 [ 37.587807] ? unwind_get_return_address+0x51/0x90 [ 37.592718] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.598066] ? __save_stack_trace+0xaf/0x190 [ 37.602454] ? __lock_acquire+0x6de/0x3ff0 [ 37.606672] ? __kasan_slab_free+0x186/0x1f0 [ 37.611073] ? kmem_cache_free+0x7f/0x260 [ 37.615204] ? kfree_skbmem+0xc1/0x140 [ 37.619069] ? consume_skb+0x120/0x3d0 [ 37.622936] ? mark_held_locks+0xf0/0xf0 [ 37.626984] ? netlink_deliver_tap+0x8fb/0xb00 [ 37.631546] ? netlink_unicast+0x545/0x690 [ 37.635771] ? netlink_sendmsg+0x6c3/0xc50 [ 37.639996] ? sock_sendmsg+0xc3/0x120 [ 37.643866] ? ___sys_sendmsg+0x7bb/0x8e0 [ 37.647990] ? __x64_sys_sendmsg+0x132/0x220 [ 37.652379] ? do_syscall_64+0xf9/0x620 [ 37.656353] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.661706] ? mutex_trylock+0x1a0/0x1a0 [ 37.665744] ? check_preemption_disabled+0x41/0x280 [ 37.670830] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 37.675219] ? rtnl_getlink+0x620/0x620 [ 37.679173] rtnetlink_rcv_msg+0x453/0xb80 [ 37.683388] ? rtnl_calcit.isra.0+0x430/0x430 [ 37.688036] ? memcpy+0x35/0x50 [ 37.691311] ? netdev_pick_tx+0x2f0/0x2f0 [ 37.695435] ? __copy_skb_header+0x414/0x500 [ 37.699822] ? kfree_skbmem+0x140/0x140 [ 37.703777] netlink_rcv_skb+0x160/0x440 [ 37.707820] ? rtnl_calcit.isra.0+0x430/0x430 [ 37.712292] ? netlink_ack+0xae0/0xae0 [ 37.716158] netlink_unicast+0x4d5/0x690 [ 37.720198] ? netlink_sendskb+0x110/0x110 [ 37.724409] ? _copy_from_iter_full+0x229/0x7c0 [ 37.729055] ? __phys_addr_symbol+0x2c/0x70 [ 37.733358] ? __check_object_size+0x17b/0x3e0 [ 37.737919] netlink_sendmsg+0x6c3/0xc50 [ 37.741960] ? aa_af_perm+0x230/0x230 [ 37.745738] ? nlmsg_notify+0x1f0/0x1f0 [ 37.749689] ? kernel_recvmsg+0x220/0x220 [ 37.753831] ? nlmsg_notify+0x1f0/0x1f0 [ 37.757787] sock_sendmsg+0xc3/0x120 [ 37.761477] ___sys_sendmsg+0x7bb/0x8e0 [ 37.765429] ? copy_msghdr_from_user+0x440/0x440 [ 37.770167] ? __fget+0x32f/0x510 [ 37.773598] ? lock_downgrade+0x720/0x720 [ 37.777723] ? check_preemption_disabled+0x41/0x280 [ 37.782721] ? check_preemption_disabled+0x41/0x280 [ 37.787715] ? __fget+0x356/0x510 [ 37.791148] ? do_dup2+0x450/0x450 [ 37.794672] ? __fdget+0x1d0/0x230 [ 37.798191] __x64_sys_sendmsg+0x132/0x220 [ 37.802407] ? __sys_sendmsg+0x1b0/0x1b0 [ 37.806450] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.811794] ? trace_hardirqs_off_caller+0x6e/0x210 [ 37.816798] ? do_syscall_64+0x21/0x620 [ 37.820752] do_syscall_64+0xf9/0x620 [ 37.824531] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.829699] RIP: 0033:0x7eff32d134d9 [ 37.833392] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 18 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 37.852273] RSP: 002b:00007eff32c97208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 37.859957] RAX: ffffffffffffffda RBX: 00007eff32d944d8 RCX: 00007eff32d134d9 [ 37.867204] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 [ 37.874449] RBP: 00007eff32d944d0 R08: 0000000000000801 R09: 0000000000000000 [ 37.881695] R10: 0000000000001f11 R11: 0000000000000246 R12: 00007eff32d944dc [ 37.888940] R13: 00007ffe21a894af R14: 00007eff32c97300 R15: 0000000000022000 [ 37.896189] Modules linked in: [ 37.901991] ---[ end trace 2b6335373dde5187 ]--- [ 37.906808] RIP: 0010:hsr_check_carrier_and_operstate+0x3f/0x810 [ 37.913432] Code: f9 be 04 00 00 00 48 89 ef e8 cd a8 ff ff 49 89 c6 48 83 c0 10 48 89 c2 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 64 07 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b [ 37.932431] RSP: 0018:ffff888095b36cb8 EFLAGS: 00010202 [ 37.937820] RAX: dffffc0000000000 RBX: ffff8880959d0700 RCX: ffffffff87ea889e [ 37.945366] RDX: 0000000000000002 RSI: ffffffff87ea88a7 RDI: 0000000000000004 [ 37.952733] RBP: ffff888094445000 R08: 0000000000000000 R09: 0000000000000002 [ 37.960115] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000001 [ 37.967401] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff8b0bcc40 [ 37.974802] FS: 00007eff32c97700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 37.983080] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.988972] CR2: 00007eff32c97718 CR3: 000000009939a000 CR4: 00000000003406e0 [ 37.996863] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.004183] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.011504] Kernel panic - not syncing: Fatal exception [ 38.017036] Kernel Offset: disabled [ 38.020648] Rebooting in 86400 seconds..