Warning: Permanently added '10.128.1.71' (ECDSA) to the list of known hosts. 2021/09/06 14:02:50 fuzzer started 2021/09/06 14:02:51 connecting to host at 10.128.0.169:40861 2021/09/06 14:02:51 checking machine... 2021/09/06 14:02:51 checking revisions... 2021/09/06 14:02:51 testing simple program... [ 72.786179][ T6551] chnl_net:caif_netlink_parms(): no params data found [ 72.854663][ T6551] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.861987][ T6551] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.871813][ T6551] device bridge_slave_0 entered promiscuous mode [ 72.881561][ T6551] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.889267][ T6551] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.897554][ T6551] device bridge_slave_1 entered promiscuous mode [ 72.931951][ T6551] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.945215][ T6551] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.979878][ T6551] team0: Port device team_slave_0 added [ 72.987989][ T6551] team0: Port device team_slave_1 added [ 73.015771][ T6551] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.022898][ T6551] 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. [ 73.049136][ T6551] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.063167][ T6551] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.070395][ T6551] 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. [ 73.096985][ T6551] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.136061][ T6551] device hsr_slave_0 entered promiscuous mode [ 73.144871][ T6551] device hsr_slave_1 entered promiscuous mode [ 73.271700][ T6551] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.282558][ T6551] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.296611][ T6551] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.307330][ T6551] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.333325][ T6551] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.340921][ T6551] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.349301][ T6551] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.356492][ T6551] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.401612][ T6551] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.419274][ T1263] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.431528][ T1263] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.441279][ T1263] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.450915][ T1263] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.465775][ T6551] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.478387][ T1263] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.486816][ T1263] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.493927][ T1263] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.506456][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.515150][ T23] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.522182][ T23] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.544362][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.556061][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.575508][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.584588][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.592727][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.604242][ T6551] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.623777][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.631356][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.645737][ T6551] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.664916][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.687836][ T6551] device veth0_vlan entered promiscuous mode [ 73.695188][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.705250][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.715002][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.729355][ T6551] device veth1_vlan entered promiscuous mode [ 73.737415][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.761876][ T6551] device veth0_macvtap entered promiscuous mode [ 73.770466][ T2981] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.779679][ T2981] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.788831][ T2981] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.801254][ T6551] device veth1_macvtap entered promiscuous mode [ 73.819788][ T6551] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.828390][ T2981] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.838159][ T2981] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.850803][ T6551] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.859009][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.869077][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.880884][ T6551] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.890807][ T6551] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.900037][ T6551] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.911779][ T6551] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.997796][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.025493][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 74.045995][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.060531][ T10] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.072289][ T10] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.082258][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/09/06 14:02:54 building call list... [ 76.401300][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 77.286326][ T6544] ================================================================== [ 77.294735][ T6544] BUG: KASAN: null-ptr-deref in fuse_conn_put+0x1d7/0x300 [ 77.301939][ T6544] Read of size 4 at addr 0000000000000000 by task syz-fuzzer/6544 [ 77.310026][ T6544] [ 77.312596][ T6544] CPU: 0 PID: 6544 Comm: syz-fuzzer Not tainted 5.14.0-next-20210906-syzkaller #0 [ 77.321777][ T6544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.331830][ T6544] Call Trace: [ 77.335110][ T6544] dump_stack_lvl+0xcd/0x134 [ 77.339857][ T6544] kasan_report.cold+0x66/0xdf [ 77.344759][ T6544] ? fuse_conn_put+0x1d7/0x300 [ 77.349878][ T6544] kasan_check_range+0x13d/0x180 [ 77.354819][ T6544] fuse_conn_put+0x1d7/0x300 [ 77.359432][ T6544] fuse_dev_free+0x155/0x1f0 [ 77.364032][ T6544] fuse_dev_release+0x2a8/0x3f0 [ 77.368991][ T6544] ? fuse_abort_conn+0xc90/0xc90 [ 77.373942][ T6544] ? cuse_channel_release+0x237/0x300 [ 77.379347][ T6544] __fput+0x288/0x9f0 [ 77.383340][ T6544] ? cuse_class_waiting_show+0xa0/0xa0 [ 77.388815][ T6544] task_work_run+0xdd/0x1a0 [ 77.393332][ T6544] exit_to_user_mode_prepare+0x27e/0x290 [ 77.398987][ T6544] syscall_exit_to_user_mode+0x19/0x60 [ 77.404457][ T6544] do_syscall_64+0x42/0xb0 [ 77.408875][ T6544] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 77.414777][ T6544] RIP: 0033:0x4af19b [ 77.418668][ T6544] 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 [ 77.438278][ T6544] RSP: 002b:000000c00038d430 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 77.446781][ T6544] RAX: 0000000000000000 RBX: 000000c00001e800 RCX: 00000000004af19b [ 77.454749][ T6544] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 77.462854][ T6544] RBP: 000000c00038d470 R08: 0000000000000001 R09: 0000000000000000 [ 77.470854][ T6544] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000014d [ 77.478820][ T6544] R13: 000000000000014c R14: 0000000000000200 R15: 000000c0005e2e60 [ 77.486809][ T6544] ================================================================== [ 77.494857][ T6544] Disabling lock debugging due to kernel taint [ 77.502587][ T6544] Kernel panic - not syncing: panic_on_warn set ... [ 77.509275][ T6544] CPU: 1 PID: 6544 Comm: syz-fuzzer Tainted: G B 5.14.0-next-20210906-syzkaller #0 [ 77.519894][ T6544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.530034][ T6544] Call Trace: [ 77.533318][ T6544] dump_stack_lvl+0xcd/0x134 [ 77.537929][ T6544] panic+0x2b0/0x6dd [ 77.541836][ T6544] ? __warn_printk+0xf3/0xf3 [ 77.546435][ T6544] ? preempt_schedule_common+0x59/0xc0 [ 77.551913][ T6544] ? fuse_conn_put+0x1d7/0x300 [ 77.556680][ T6544] ? preempt_schedule_thunk+0x16/0x18 [ 77.562233][ T6544] ? trace_hardirqs_on+0x38/0x1c0 [ 77.567264][ T6544] ? trace_hardirqs_on+0x51/0x1c0 [ 77.572301][ T6544] ? fuse_conn_put+0x1d7/0x300 [ 77.577073][ T6544] ? fuse_conn_put+0x1d7/0x300 [ 77.581839][ T6544] end_report.cold+0x63/0x6f [ 77.586434][ T6544] kasan_report.cold+0x71/0xdf [ 77.591218][ T6544] ? fuse_conn_put+0x1d7/0x300 [ 77.595996][ T6544] kasan_check_range+0x13d/0x180 [ 77.600945][ T6544] fuse_conn_put+0x1d7/0x300 [ 77.605539][ T6544] fuse_dev_free+0x155/0x1f0 [ 77.610125][ T6544] fuse_dev_release+0x2a8/0x3f0 [ 77.615148][ T6544] ? fuse_abort_conn+0xc90/0xc90 [ 77.620081][ T6544] ? cuse_channel_release+0x237/0x300 [ 77.625453][ T6544] __fput+0x288/0x9f0 [ 77.629534][ T6544] ? cuse_class_waiting_show+0xa0/0xa0 [ 77.635087][ T6544] task_work_run+0xdd/0x1a0 [ 77.639589][ T6544] exit_to_user_mode_prepare+0x27e/0x290 [ 77.645328][ T6544] syscall_exit_to_user_mode+0x19/0x60 [ 77.650787][ T6544] do_syscall_64+0x42/0xb0 [ 77.655210][ T6544] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 77.661105][ T6544] RIP: 0033:0x4af19b [ 77.665082][ T6544] 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 [ 77.684727][ T6544] RSP: 002b:000000c00038d430 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 77.693339][ T6544] RAX: 0000000000000000 RBX: 000000c00001e800 RCX: 00000000004af19b [ 77.701316][ T6544] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 77.709278][ T6544] RBP: 000000c00038d470 R08: 0000000000000001 R09: 0000000000000000 [ 77.717259][ T6544] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000014d [ 77.725223][ T6544] R13: 000000000000014c R14: 0000000000000200 R15: 000000c0005e2e60 [ 77.734729][ T6544] Kernel Offset: disabled [ 77.739126][ T6544] Rebooting in 86400 seconds..