[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.174' (ECDSA) to the list of known hosts. 2020/07/11 19:50:20 parsed 1 programs 2020/07/11 19:50:20 executed programs: 0 syzkaller login: [ 1043.930429] audit: type=1400 audit(1594497020.383:8): avc: denied { execmem } for pid=6361 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 1044.188110] IPVS: ftp: loaded support on port[0] = 21 [ 1045.002959] chnl_net:caif_netlink_parms(): no params data found [ 1045.058482] bridge0: port 1(bridge_slave_0) entered blocking state [ 1045.065090] bridge0: port 1(bridge_slave_0) entered disabled state [ 1045.073080] device bridge_slave_0 entered promiscuous mode [ 1045.080890] bridge0: port 2(bridge_slave_1) entered blocking state [ 1045.087537] bridge0: port 2(bridge_slave_1) entered disabled state [ 1045.094488] device bridge_slave_1 entered promiscuous mode [ 1045.111639] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1045.120700] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1045.138752] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1045.146052] team0: Port device team_slave_0 added [ 1045.152087] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1045.159396] team0: Port device team_slave_1 added [ 1045.175233] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1045.181529] 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. [ 1045.206917] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1045.218760] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1045.224993] 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. [ 1045.250290] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1045.260883] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1045.268508] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1045.329164] device hsr_slave_0 entered promiscuous mode [ 1045.366977] device hsr_slave_1 entered promiscuous mode [ 1045.407480] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1045.414503] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1045.479658] bridge0: port 2(bridge_slave_1) entered blocking state [ 1045.486274] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1045.493265] bridge0: port 1(bridge_slave_0) entered blocking state [ 1045.499692] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1045.529242] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 1045.535317] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1045.544729] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1045.553272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1045.573018] bridge0: port 1(bridge_slave_0) entered disabled state [ 1045.580788] bridge0: port 2(bridge_slave_1) entered disabled state [ 1045.591314] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1045.597693] 8021q: adding VLAN 0 to HW filter on device team0 [ 1045.605925] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1045.613927] bridge0: port 1(bridge_slave_0) entered blocking state [ 1045.620404] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1045.630394] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1045.638323] bridge0: port 2(bridge_slave_1) entered blocking state [ 1045.644654] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1045.659096] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1045.666949] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1045.680880] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 1045.691054] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1045.702822] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1045.709643] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1045.717751] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1045.725267] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1045.733634] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1045.745900] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1045.753461] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1045.760245] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1045.778896] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1045.829999] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 1045.839937] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1045.870791] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 1045.878652] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 1045.885066] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 1045.894625] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1045.902528] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1045.909733] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1045.919300] device veth0_vlan entered promiscuous mode [ 1045.929837] device veth1_vlan entered promiscuous mode [ 1045.935694] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 1045.944482] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 1045.956110] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 1045.966207] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1045.973880] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1045.982129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1045.991072] device veth0_macvtap entered promiscuous mode [ 1045.998048] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 1046.004518] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1046.011860] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1046.021705] device veth1_macvtap entered promiscuous mode [ 1046.030424] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 1046.039825] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 1046.049487] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 1046.057464] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1046.064224] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1046.072102] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1046.082103] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 1046.089754] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1046.096404] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1046.104846] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2020/07/11 19:50:25 executed programs: 19 2020/07/11 19:50:30 executed programs: 81 [ 1055.088030] NOHZ: local_softirq_pending 08 2020/07/11 19:50:35 executed programs: 141 2020/07/11 19:50:40 executed programs: 203 2020/07/11 19:50:45 executed programs: 266 2020/07/11 19:50:50 executed programs: 330 2020/07/11 19:50:55 executed programs: 392 [ 1081.495115] INFO: trying to register non-static key. [ 1081.500235] the code is fine but needs lockdep annotation. [ 1081.505849] turning off the locking correctness validator. [ 1081.511480] CPU: 0 PID: 8691 Comm: syz-executor.0 Not tainted 4.14.184-syzkaller #0 [ 1081.519355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1081.528728] Call Trace: [ 1081.531351] dump_stack+0x1b2/0x283 [ 1081.534992] register_lock_class+0x32b/0x1320 [ 1081.539460] ? deref_stack_reg+0x8a/0xc0 [ 1081.543492] ? static_obj+0x50/0x50 [ 1081.547089] __lock_acquire+0x180/0x42a0 [ 1081.551120] ? deref_stack_reg+0x8a/0xc0 [ 1081.555168] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 1081.561036] ? deref_stack_reg+0xc0/0xc0 [ 1081.565070] ? lock_downgrade+0x6e0/0x6e0 [ 1081.569204] ? trace_hardirqs_on+0x10/0x10 [ 1081.573468] ? is_bpf_text_address+0xa3/0x120 [ 1081.577947] ? kernel_text_address+0x6e/0xe0 [ 1081.582326] ? __kernel_text_address+0x9/0x30 [ 1081.586807] ? unwind_get_return_address+0x51/0x90 [ 1081.591705] ? __lock_acquire+0x655/0x42a0 [ 1081.595925] lock_acquire+0x170/0x3f0 [ 1081.599696] ? flush_work+0x82/0x780 [ 1081.603385] flush_work+0xae/0x780 [ 1081.606893] ? flush_work+0x82/0x780 [ 1081.610576] ? insert_work+0x2f0/0x2f0 [ 1081.614452] ? trace_hardirqs_on+0x10/0x10 [ 1081.618656] ? trace_hardirqs_on+0x10/0x10 [ 1081.622861] ? mark_held_locks+0xa6/0xf0 [ 1081.626905] ? __cancel_work_timer+0x2c9/0x460 [ 1081.631458] __cancel_work_timer+0x329/0x460 [ 1081.635843] ? cancel_delayed_work+0x20/0x20 [ 1081.640223] ? mark_held_locks+0xa6/0xf0 [ 1081.644316] ? smc_accept_dequeue+0x3b1/0x5f0 [ 1081.648819] ? __local_bh_enable_ip+0xc1/0x160 [ 1081.653377] smc_close_active+0x684/0xb90 [ 1081.657494] smc_release+0x40d/0x610 [ 1081.661206] __sock_release+0xcd/0x2b0 [ 1081.665065] ? __sock_release+0x2b0/0x2b0 [ 1081.669180] sock_close+0x15/0x20 [ 1081.672684] __fput+0x25f/0x7a0 [ 1081.675999] task_work_run+0x113/0x190 [ 1081.679861] exit_to_usermode_loop+0x1ad/0x200 [ 1081.684419] do_syscall_64+0x4a3/0x640 [ 1081.688320] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1081.693489] RIP: 0033:0x416721 [ 1081.696649] RSP: 002b:00007ffd893ee6e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 1081.704342] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000416721 [ 1081.711580] RDX: 0000000000000001 RSI: 00000000007900e0 RDI: 0000000000000003 [ 1081.718822] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 1081.726099] R10: 00007ffd893ee7d0 R11: 0000000000000293 R12: 0000000000790248 [ 1081.733341] R13: 0000000000108138 R14: ffffffffffffffff R15: 000000000078c04c 2020/07/11 19:51:00 executed programs: 450 2020/07/11 19:51:05 executed programs: 510