[ OK ] Reached target Multi-User System. [ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.57' (ECDSA) to the list of known hosts. syzkaller login: [ 44.912856][ T7024] IPVS: ftp: loaded support on port[0] = 21 [ 44.994574][ T7024] chnl_net:caif_netlink_parms(): no params data found [ 45.047973][ T7024] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.056102][ T7024] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.065258][ T7024] device bridge_slave_0 entered promiscuous mode [ 45.076559][ T7024] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.084854][ T7024] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.092845][ T7024] device bridge_slave_1 entered promiscuous mode [ 45.112394][ T7024] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 45.123318][ T7024] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 45.145037][ T7024] team0: Port device team_slave_0 added [ 45.152606][ T7024] team0: Port device team_slave_1 added [ 45.169331][ T7024] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 45.176855][ T7024] 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. [ 45.202867][ T7024] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 45.215178][ T7024] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 45.222241][ T7024] 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. [ 45.248187][ T7024] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 45.303353][ T7024] device hsr_slave_0 entered promiscuous mode [ 45.340468][ T7024] device hsr_slave_1 entered promiscuous mode [ 45.453165][ T7024] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 45.502812][ T7024] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 45.552481][ T7024] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 45.592691][ T7024] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 45.654607][ T7024] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.661759][ T7024] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.669382][ T7024] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.676621][ T7024] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.714507][ T7024] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.730477][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.741319][ T23] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.749415][ T23] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.758035][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 45.772446][ T7024] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.784110][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.792673][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.799710][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.812024][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.820848][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.827875][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.852672][ T2697] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.861246][ T2697] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.869616][ T2697] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.878253][ T2697] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.892345][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.902401][ T7024] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.920944][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 45.928504][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 45.941099][ T7024] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 45.958882][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.979268][ T7024] device veth0_vlan entered promiscuous mode [ 45.987214][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.996943][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.005005][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.018565][ T7024] device veth1_vlan entered promiscuous mode [ 46.039938][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.048319][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.060975][ T7024] device veth0_macvtap entered promiscuous mode [ 46.070518][ T7024] device veth1_macvtap entered promiscuous mode [ 46.085706][ T7024] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 46.093257][ T2697] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.102154][ T2697] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.110384][ T2697] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 46.118927][ T2697] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.131003][ T7024] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 46.141100][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.149551][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 46.299163][ T7234] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 46.307799][ T7234] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.316199][ T7234] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.325416][ T7234] device bridge_slave_0 left promiscuous mode [ 46.332755][ T7234] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.420511][ T7234] device bridge_slave_1 left promiscuous mode [ 46.426807][ T7234] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.503986][ T7235] ------------[ cut here ]------------ [ 46.509507][ T7235] DEBUG_LOCKS_WARN_ON(1) [ 46.509650][ T7235] WARNING: CPU: 0 PID: 7235 at kernel/locking/lockdep.c:183 __lock_acquire+0x1aab/0x2c30 [ 46.523653][ T7235] Kernel panic - not syncing: panic_on_warn set ... [ 46.530213][ T7235] CPU: 0 PID: 7235 Comm: syz-executor379 Not tainted 5.7.0-rc6-syzkaller #0 [ 46.538857][ T7235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.548881][ T7235] Call Trace: [ 46.552191][ T7235] dump_stack+0x1e9/0x30e [ 46.556939][ T7235] panic+0x264/0x7a0 [ 46.560807][ T7235] ? __warn+0x102/0x210 [ 46.564930][ T7235] ? __lock_acquire+0x1aab/0x2c30 [ 46.569947][ T7235] __warn+0x209/0x210 [ 46.574000][ T7235] ? __lock_acquire+0x1aab/0x2c30 [ 46.579031][ T7235] report_bug+0x1ac/0x2d0 [ 46.583347][ T7235] do_error_trap+0xca/0x1c0 [ 46.587834][ T7235] do_invalid_op+0x32/0x40 [ 46.592224][ T7235] ? __lock_acquire+0x1aab/0x2c30 [ 46.597270][ T7235] invalid_op+0x23/0x30 [ 46.601394][ T7235] RIP: 0010:__lock_acquire+0x1aab/0x2c30 [ 46.607006][ T7235] Code: 13 08 00 0f 85 8d ea ff ff 31 db 48 c7 c7 99 82 e5 88 48 c7 c6 d3 4f ea 88 31 c0 e8 7f d6 ec ff 48 ba 00 00 00 00 00 fc ff df <0f> 0b e9 81 ea ff ff 31 db e9 70 ea ff ff 48 c7 c1 30 ed 55 8b 80 [ 46.626600][ T7235] RSP: 0018:ffffc90001ad74f0 EFLAGS: 00010046 [ 46.632674][ T7235] RAX: 43109e3dc9d77000 RBX: 0000000000000000 RCX: ffff888096498280 [ 46.640626][ T7235] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff815cd136 [ 46.648570][ T7235] RBP: ffffc90001ad7658 R08: ffffffff817912a6 R09: fffffbfff125cd0b [ 46.656515][ T7235] R10: fffffbfff125cd0b R11: 0000000000000000 R12: ffff888096498bb8 [ 46.664458][ T7235] R13: 1ffff11012c93177 R14: 0000000000000607 R15: 0000000000000000 [ 46.672434][ T7235] ? trace_hardirqs_off+0x16/0x70 [ 46.677433][ T7235] ? vprintk_emit+0x1b6/0x3c0 [ 46.682184][ T7235] ? mark_lock+0x102/0x1b00 [ 46.686655][ T7235] ? vsnprintf+0x1a12/0x1aa0 [ 46.691212][ T7235] lock_acquire+0x169/0x480 [ 46.695705][ T7235] ? dev_mc_seq_show+0x40/0x220 [ 46.700609][ T7235] ? lockdep_hardirqs_on+0x4a4/0x8a0 [ 46.705860][ T7235] ? dev_mc_seq_show+0x40/0x220 [ 46.710688][ T7235] _raw_spin_lock_bh+0x31/0x40 [ 46.715417][ T7235] ? dev_mc_seq_show+0x40/0x220 [ 46.720235][ T7235] dev_mc_seq_show+0x40/0x220 [ 46.725071][ T7235] seq_read+0x950/0xce0 [ 46.729221][ T7235] ? seq_open+0x140/0x140 [ 46.733525][ T7235] proc_reg_read+0x27f/0x3a0 [ 46.738083][ T7235] do_iter_read+0x44b/0x550 [ 46.742567][ T7235] vfs_readv+0xc2/0x120 [ 46.746695][ T7235] ? iov_iter_get_pages_alloc+0xea4/0x1170 [ 46.752477][ T7235] default_file_splice_read+0x579/0xa40 [ 46.758001][ T7235] ? __ia32_sys_tee+0xa0/0xa0 [ 46.762655][ T7235] splice_direct_to_actor+0x3c1/0xb40 [ 46.767993][ T7235] ? do_splice_direct+0x340/0x340 [ 46.772992][ T7235] do_splice_direct+0x201/0x340 [ 46.777852][ T7235] ? fsnotify_perm+0x10/0x390 [ 46.782513][ T7235] do_sendfile+0x809/0xfe0 [ 46.786900][ T7235] __x64_sys_sendfile64+0x164/0x1a0 [ 46.792096][ T7235] ? do_syscall_64+0x19/0x1b0 [ 46.796739][ T7235] do_syscall_64+0xf3/0x1b0 [ 46.801225][ T7235] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 46.807100][ T7235] RIP: 0033:0x448b99 [ 46.810976][ T7235] Code: e8 cc 14 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 ab 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 46.830554][ T7235] RSP: 002b:00007feaf3cdbd18 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 46.838932][ T7235] RAX: ffffffffffffffda RBX: 00000000006dec58 RCX: 0000000000448b99 [ 46.846883][ T7235] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007 [ 46.854829][ T7235] RBP: 00000000006dec50 R08: 65732f636f72702f R09: 65732f636f72702f [ 46.862784][ T7235] R10: 000000000000edc0 R11: 0000000000000246 R12: 00000000006dec5c [ 46.870742][ T7235] R13: 00007feaf3cdbd20 R14: 00007feaf3cdbd20 R15: 00000000006dec5c [ 46.880093][ T7235] Kernel Offset: disabled [ 46.884429][ T7235] Rebooting in 86400 seconds..