Warning: Permanently added '10.128.1.111' (ECDSA) to the list of known hosts. 2021/09/06 14:02:53 fuzzer started 2021/09/06 14:02:53 connecting to host at 10.128.0.169:33015 2021/09/06 14:02:53 checking machine... 2021/09/06 14:02:53 checking revisions... 2021/09/06 14:02:53 testing simple program... [ 73.052112][ T6563] chnl_net:caif_netlink_parms(): no params data found [ 73.123824][ T6563] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.133126][ T6563] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.141837][ T6563] device bridge_slave_0 entered promiscuous mode [ 73.152457][ T6563] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.159583][ T6563] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.168629][ T6563] device bridge_slave_1 entered promiscuous mode [ 73.201655][ T6563] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.213534][ T6563] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.248702][ T6563] team0: Port device team_slave_0 added [ 73.256186][ T6563] team0: Port device team_slave_1 added [ 73.284981][ T6563] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.292041][ T6563] 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. [ 73.318535][ T6563] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.333515][ T6563] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.340713][ T6563] 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. [ 73.367389][ T6563] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.405546][ T6563] device hsr_slave_0 entered promiscuous mode [ 73.412693][ T6563] device hsr_slave_1 entered promiscuous mode [ 73.545499][ T6563] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.555920][ T6563] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.568059][ T6563] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.579459][ T6563] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.609878][ T6563] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.617176][ T6563] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.625241][ T6563] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.632387][ T6563] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.683751][ T6563] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.698672][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.713034][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.722623][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.732287][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.746136][ T6563] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.758992][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.768563][ T2977] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.775785][ T2977] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.787499][ T6896] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.797166][ T6896] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.804318][ T6896] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.828489][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.837492][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.850247][ T1053] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.865329][ T6896] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.876484][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.887721][ T6563] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.906363][ T6896] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.914363][ T6896] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.926936][ T6563] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.947922][ T6896] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.968689][ T6896] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.977338][ T6896] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.986209][ T6896] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.997480][ T6563] device veth0_vlan entered promiscuous mode [ 74.010577][ T6563] device veth1_vlan entered promiscuous mode [ 74.018087][ T6896] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.042546][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.052460][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.065728][ T6563] device veth0_macvtap entered promiscuous mode [ 74.076643][ T6563] device veth1_macvtap entered promiscuous mode [ 74.093469][ T6563] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.101728][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.109788][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.119033][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.128427][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.142107][ T6563] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.149668][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.159245][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.174619][ T6563] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.183654][ T6563] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.197189][ T6563] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.208238][ T6563] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 74.304215][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.314524][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.325798][ T1053] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.359597][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.369320][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.379653][ T1264] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/09/06 14:02:57 building call list... [ 76.774120][ T254] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 77.575061][ T6555] ================================================================== [ 77.583950][ T6555] BUG: KASAN: null-ptr-deref in fuse_conn_put+0x1d7/0x300 [ 77.590879][ T6563] syz-executor.0 (6563) used greatest stack depth: 22712 bytes left [ 77.591086][ T6555] Read of size 4 at addr 0000000000000000 by task syz-fuzzer/6555 [ 77.606945][ T6555] [ 77.609295][ T6555] CPU: 1 PID: 6555 Comm: syz-fuzzer Not tainted 5.14.0-next-20210906-syzkaller #0 [ 77.618483][ T6555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.628531][ T6555] Call Trace: [ 77.631956][ T6555] dump_stack_lvl+0xcd/0x134 [ 77.636568][ T6555] kasan_report.cold+0x66/0xdf [ 77.641351][ T6555] ? fuse_conn_put+0x1d7/0x300 [ 77.646128][ T6555] kasan_check_range+0x13d/0x180 [ 77.651080][ T6555] fuse_conn_put+0x1d7/0x300 [ 77.655699][ T6555] fuse_dev_free+0x155/0x1f0 [ 77.660326][ T6555] fuse_dev_release+0x2a8/0x3f0 [ 77.665191][ T6555] ? fuse_abort_conn+0xc90/0xc90 [ 77.670150][ T6555] ? cuse_channel_release+0x237/0x300 [ 77.675532][ T6555] __fput+0x288/0x9f0 [ 77.679521][ T6555] ? cuse_class_waiting_show+0xa0/0xa0 [ 77.684994][ T6555] task_work_run+0xdd/0x1a0 [ 77.689510][ T6555] exit_to_user_mode_prepare+0x27e/0x290 [ 77.695150][ T6555] syscall_exit_to_user_mode+0x19/0x60 [ 77.700629][ T6555] do_syscall_64+0x42/0xb0 [ 77.705060][ T6555] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 77.710987][ T6555] RIP: 0033:0x4af19b [ 77.714889][ T6555] Code: fb ff eb bd e8 a6 b6 fb ff e9 61 ff ff ff cc e8 9b 82 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 77.735721][ T6555] RSP: 002b:000000c000343430 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 77.744157][ T6555] RAX: 0000000000000000 RBX: 000000c00001e800 RCX: 00000000004af19b [ 77.752141][ T6555] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 77.760132][ T6555] RBP: 000000c000343470 R08: 0000000000000001 R09: 0000000000000000 [ 77.768100][ T6555] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000014a [ 77.776067][ T6555] R13: 0000000000000149 R14: 0000000000000200 R15: 000000c00029c3c0 [ 77.784058][ T6555] ================================================================== [ 77.792108][ T6555] Disabling lock debugging due to kernel taint [ 77.800150][ T6555] Kernel panic - not syncing: panic_on_warn set ... [ 77.806749][ T6555] CPU: 0 PID: 6555 Comm: syz-fuzzer Tainted: G B 5.14.0-next-20210906-syzkaller #0 [ 77.817340][ T6555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.827394][ T6555] Call Trace: [ 77.830665][ T6555] dump_stack_lvl+0xcd/0x134 [ 77.835261][ T6555] panic+0x2b0/0x6dd [ 77.839161][ T6555] ? __warn_printk+0xf3/0xf3 [ 77.843758][ T6555] ? preempt_schedule_common+0x59/0xc0 [ 77.849217][ T6555] ? fuse_conn_put+0x1d7/0x300 [ 77.853979][ T6555] ? preempt_schedule_thunk+0x16/0x18 [ 77.859357][ T6555] ? trace_hardirqs_on+0x38/0x1c0 [ 77.864383][ T6555] ? trace_hardirqs_on+0x51/0x1c0 [ 77.869416][ T6555] ? fuse_conn_put+0x1d7/0x300 [ 77.874173][ T6555] ? fuse_conn_put+0x1d7/0x300 [ 77.878938][ T6555] end_report.cold+0x63/0x6f [ 77.883542][ T6555] kasan_report.cold+0x71/0xdf [ 77.888307][ T6555] ? fuse_conn_put+0x1d7/0x300 [ 77.893088][ T6555] kasan_check_range+0x13d/0x180 [ 77.898025][ T6555] fuse_conn_put+0x1d7/0x300 [ 77.902613][ T6555] fuse_dev_free+0x155/0x1f0 [ 77.907217][ T6555] fuse_dev_release+0x2a8/0x3f0 [ 77.912070][ T6555] ? fuse_abort_conn+0xc90/0xc90 [ 77.917009][ T6555] ? cuse_channel_release+0x237/0x300 [ 77.922379][ T6555] __fput+0x288/0x9f0 [ 77.926362][ T6555] ? cuse_class_waiting_show+0xa0/0xa0 [ 77.931825][ T6555] task_work_run+0xdd/0x1a0 [ 77.936329][ T6555] exit_to_user_mode_prepare+0x27e/0x290 [ 77.941978][ T6555] syscall_exit_to_user_mode+0x19/0x60 [ 77.947439][ T6555] do_syscall_64+0x42/0xb0 [ 77.951853][ T6555] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 77.957749][ T6555] RIP: 0033:0x4af19b [ 77.961635][ T6555] Code: fb ff eb bd e8 a6 b6 fb ff e9 61 ff ff ff cc e8 9b 82 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 77.981415][ T6555] RSP: 002b:000000c000343430 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 77.989822][ T6555] RAX: 0000000000000000 RBX: 000000c00001e800 RCX: 00000000004af19b [ 77.997802][ T6555] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 78.005764][ T6555] RBP: 000000c000343470 R08: 0000000000000001 R09: 0000000000000000 [ 78.013726][ T6555] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000014a [ 78.021688][ T6555] R13: 0000000000000149 R14: 0000000000000200 R15: 000000c00029c3c0 [ 78.031020][ T6555] Kernel Offset: disabled [ 78.035340][ T6555] Rebooting in 86400 seconds..