Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.95' (ECDSA) to the list of known hosts. 2020/07/31 08:19:28 parsed 1 programs 2020/07/31 08:19:28 executed programs: 0 syzkaller login: [ 61.634499][ T6864] IPVS: ftp: loaded support on port[0] = 21 [ 61.732997][ T6864] chnl_net:caif_netlink_parms(): no params data found [ 61.784068][ T6864] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.791824][ T6864] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.800001][ T6864] device bridge_slave_0 entered promiscuous mode [ 61.809201][ T6864] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.816411][ T6864] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.823993][ T6864] device bridge_slave_1 entered promiscuous mode [ 61.843256][ T6864] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.854104][ T6864] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.875990][ T6864] team0: Port device team_slave_0 added [ 61.883089][ T6864] team0: Port device team_slave_1 added [ 61.899687][ T6864] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.907322][ T6864] 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. [ 61.933293][ T6864] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.945963][ T6864] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.952902][ T6864] 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. [ 61.978868][ T6864] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.048741][ T6864] device hsr_slave_0 entered promiscuous mode [ 62.095339][ T6864] device hsr_slave_1 entered promiscuous mode [ 62.221213][ T6864] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.267226][ T6864] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.346896][ T6864] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.397329][ T6864] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.450831][ T6864] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.457996][ T6864] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.465835][ T6864] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.472896][ T6864] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.515983][ T6864] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.528729][ T2584] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.539901][ T2584] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.548329][ T2584] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.557021][ T2584] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 62.569512][ T6864] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.580731][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.589989][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.597085][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.615292][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.623565][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.630650][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.651579][ T6864] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 62.661993][ T6864] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.677389][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.686369][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.694587][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.703964][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.713632][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.721429][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.742239][ T6864] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.750488][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.759429][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.785517][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 62.794871][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 62.807878][ T6864] device veth0_vlan entered promiscuous mode [ 62.820425][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 62.829355][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 62.840816][ T6864] device veth1_vlan entered promiscuous mode [ 62.847938][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 62.856825][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 62.864436][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 62.886812][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 62.895829][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 62.904190][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 62.916276][ T6864] device veth0_macvtap entered promiscuous mode [ 62.926480][ T6864] device veth1_macvtap entered promiscuous mode [ 62.943163][ T6864] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.950929][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.959846][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 62.968517][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 62.977072][ T7074] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.988412][ T6864] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.996776][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.006171][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.018864][ T6864] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.027914][ T6864] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.041598][ T6864] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.052684][ T6864] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.224836][ T7142] ================================================================== [ 65.224912][ T7142] BUG: KASAN: global-out-of-bounds in bit_putcs+0xbb6/0xd20 [ 65.224925][ T7142] Read of size 1 at addr ffffffff8896ca8e by task syz-executor.0/7142 [ 65.224929][ T7142] [ 65.224951][ T7142] CPU: 0 PID: 7142 Comm: syz-executor.0 Not tainted 5.8.0-rc7-next-20200730-syzkaller #0 [ 65.224961][ T7142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.224967][ T7142] Call Trace: [ 65.224986][ T7142] dump_stack+0x18f/0x20d [ 65.225003][ T7142] ? bit_putcs+0xbb6/0xd20 [ 65.225018][ T7142] ? bit_putcs+0xbb6/0xd20 [ 65.225037][ T7142] print_address_description.constprop.0.cold+0x5/0x497 [ 65.225055][ T7142] ? sched_clock+0x2a/0x40 [ 65.225074][ T7142] ? lockdep_hardirqs_off+0x7e/0xb0 [ 65.225097][ T7142] ? vprintk_func+0x97/0x1a6 [ 65.225115][ T7142] ? bit_putcs+0xbb6/0xd20 [ 65.225130][ T7142] ? bit_putcs+0xbb6/0xd20 [ 65.225144][ T7142] kasan_report.cold+0x1f/0x37 [ 65.225163][ T7142] ? bit_putcs+0xbb6/0xd20 [ 65.225181][ T7142] bit_putcs+0xbb6/0xd20 [ 65.225214][ T7142] ? bit_cursor+0x17d0/0x17d0 [ 65.225230][ T7142] ? vga16fb_update_fix+0x4a0/0x4a0 [ 65.225251][ T7142] ? fb_get_color_depth+0x11a/0x240 [ 65.225268][ T7142] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 65.225287][ T7142] ? bit_cursor+0x17d0/0x17d0 [ 65.225302][ T7142] fbcon_putcs+0x33c/0x3f0 [ 65.225326][ T7142] do_update_region+0x399/0x630 [ 65.225351][ T7142] ? con_get_trans_old+0x280/0x280 [ 65.225371][ T7142] ? fbcon_set_palette+0x3a8/0x490 [ 65.225386][ T7142] ? var_to_display+0x7f0/0x7f0 [ 65.225404][ T7142] redraw_screen+0x64e/0x770 [ 65.225422][ T7142] ? lock_acquire+0x1f1/0xad0 [ 65.225437][ T7142] ? vc_init+0x430/0x430 [ 65.225462][ T7142] fbcon_do_set_font+0x7ec/0x950 [ 65.225484][ T7142] fbcon_copy_font+0x125/0x190 [ 65.225500][ T7142] ? fbcon_do_set_font+0x950/0x950 [ 65.225515][ T7142] con_font_op+0x65a/0x1110 [ 65.225533][ T7142] ? lock_downgrade+0x830/0x830 [ 65.225548][ T7142] ? con_write+0xb0/0xb0 [ 65.225573][ T7142] ? __might_fault+0x190/0x1d0 [ 65.225593][ T7142] vt_ioctl+0x20b9/0x2c20 [ 65.225611][ T7142] ? vt_waitactive+0x350/0x350 [ 65.225629][ T7142] ? trace_hardirqs_on+0x5f/0x220 [ 65.225645][ T7142] ? lockdep_hardirqs_on+0x76/0xf0 [ 65.225671][ T7142] ? tomoyo_execute_permission+0x470/0x470 [ 65.225688][ T7142] ? lock_acquire+0x1f1/0xad0 [ 65.225706][ T7142] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 65.225723][ T7142] ? tty_jobctrl_ioctl+0x4d/0x1010 [ 65.225738][ T7142] ? vt_waitactive+0x350/0x350 [ 65.225753][ T7142] tty_ioctl+0x1019/0x15f0 [ 65.225769][ T7142] ? tty_fasync+0x390/0x390 [ 65.225784][ T7142] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 65.225802][ T7142] ? do_vfs_ioctl+0x27d/0x1090 [ 65.225820][ T7142] ? generic_block_fiemap+0x60/0x60 [ 65.225837][ T7142] ? _copy_to_user+0x126/0x160 [ 65.225863][ T7142] ? __fget_files+0x294/0x400 [ 65.225883][ T7142] ? tty_fasync+0x390/0x390 [ 65.225902][ T7142] __x64_sys_ioctl+0x193/0x200 [ 65.225920][ T7142] do_syscall_64+0x2d/0x70 [ 65.225936][ T7142] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.225949][ T7142] RIP: 0033:0x45cc79 [ 65.225965][ T7142] Code: 2d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.225973][ T7142] RSP: 002b:00007fcdeea74c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 65.225991][ T7142] RAX: ffffffffffffffda RBX: 000000000000f580 RCX: 000000000045cc79 [ 65.226001][ T7142] RDX: 0000000020000480 RSI: 0000000000004b72 RDI: 0000000000000008 [ 65.226011][ T7142] RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000 [ 65.226021][ T7142] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c [ 65.226031][ T7142] R13: 00007ffe3660db9f R14: 00007fcdeea759c0 R15: 000000000078bf0c [ 65.226050][ T7142] [ 65.226056][ T7142] The buggy address belongs to the variable: [ 65.226069][ T7142] oid_index+0x3ee/0xa00 [ 65.226073][ T7142] [ 65.226085][ T7142] Memory state around the buggy address: [ 65.226099][ T7142] ffffffff8896c980: f9 f9 f9 f9 03 f9 f9 f9 f9 f9 f9 f9 03 f9 f9 f9 [ 65.226111][ T7142] ffffffff8896ca00: f9 f9 f9 f9 00 07 f9 f9 f9 f9 f9 f9 00 07 f9 f9 [ 65.226123][ T7142] >ffffffff8896ca80: f9 f9 f9 f9 00 06 f9 f9 f9 f9 f9 f9 06 f9 f9 f9 [ 65.226129][ T7142] ^ [ 65.226141][ T7142] ffffffff8896cb00: f9 f9 f9 f9 00 00 00 04 f9 f9 f9 f9 00 00 f9 f9 [ 65.226153][ T7142] ffffffff8896cb80: f9 f9 f9 f9 00 00 06 f9 f9 f9 f9 f9 00 00 06 f9 [ 65.226159][ T7142] ================================================================== [ 65.226165][ T7142] Disabling lock debugging due to kernel taint [ 65.226222][ T7142] Kernel panic - not syncing: panic_on_warn set ... [ 65.226238][ T7142] CPU: 0 PID: 7142 Comm: syz-executor.0 Tainted: G B 5.8.0-rc7-next-20200730-syzkaller #0 [ 65.226246][ T7142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.226250][ T7142] Call Trace: [ 65.226265][ T7142] dump_stack+0x18f/0x20d [ 65.226281][ T7142] ? bit_putcs+0xac0/0xd20 [ 65.226296][ T7142] panic+0x2e3/0x75c [ 65.226310][ T7142] ? __warn_printk+0xf3/0xf3 [ 65.226327][ T7142] ? preempt_schedule_common+0x59/0xc0 [ 65.226341][ T7142] ? bit_putcs+0xbb6/0xd20 [ 65.226357][ T7142] ? preempt_schedule_thunk+0x16/0x18 [ 65.226371][ T7142] ? trace_hardirqs_on+0x55/0x220 [ 65.226386][ T7142] ? bit_putcs+0xbb6/0xd20 [ 65.226400][ T7142] ? bit_putcs+0xbb6/0xd20 [ 65.226413][ T7142] end_report+0x4d/0x53 [ 65.226427][ T7142] kasan_report.cold+0xd/0x37 [ 65.226442][ T7142] ? bit_putcs+0xbb6/0xd20 [ 65.226457][ T7142] bit_putcs+0xbb6/0xd20 [ 65.226479][ T7142] ? bit_cursor+0x17d0/0x17d0 [ 65.226493][ T7142] ? vga16fb_update_fix+0x4a0/0x4a0 [ 65.226509][ T7142] ? fb_get_color_depth+0x11a/0x240 [ 65.226523][ T7142] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 65.226539][ T7142] ? bit_cursor+0x17d0/0x17d0 [ 65.226553][ T7142] fbcon_putcs+0x33c/0x3f0 [ 65.226571][ T7142] do_update_region+0x399/0x630 [ 65.226588][ T7142] ? con_get_trans_old+0x280/0x280 [ 65.226603][ T7142] ? fbcon_set_palette+0x3a8/0x490 [ 65.226617][ T7142] ? var_to_display+0x7f0/0x7f0 [ 65.226631][ T7142] redraw_screen+0x64e/0x770 [ 65.226646][ T7142] ? lock_acquire+0x1f1/0xad0 [ 65.226658][ T7142] ? vc_init+0x430/0x430 [ 65.226676][ T7142] fbcon_do_set_font+0x7ec/0x950 [ 65.226693][ T7142] fbcon_copy_font+0x125/0x190 [ 65.226707][ T7142] ? fbcon_do_set_font+0x950/0x950 [ 65.226721][ T7142] con_font_op+0x65a/0x1110 [ 65.226737][ T7142] ? lock_downgrade+0x830/0x830 [ 65.226749][ T7142] ? con_write+0xb0/0xb0 [ 65.226767][ T7142] ? __might_fault+0x190/0x1d0 [ 65.226782][ T7142] vt_ioctl+0x20b9/0x2c20 [ 65.226797][ T7142] ? vt_waitactive+0x350/0x350 [ 65.226812][ T7142] ? trace_hardirqs_on+0x5f/0x220 [ 65.226827][ T7142] ? lockdep_hardirqs_on+0x76/0xf0 [ 65.226846][ T7142] ? tomoyo_execute_permission+0x470/0x470 [ 65.226861][ T7142] ? lock_acquire+0x1f1/0xad0 [ 65.226876][ T7142] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 65.226892][ T7142] ? tty_jobctrl_ioctl+0x4d/0x1010 [ 65.226905][ T7142] ? vt_waitactive+0x350/0x350 [ 65.226918][ T7142] tty_ioctl+0x1019/0x15f0 [ 65.226931][ T7142] ? tty_fasync+0x390/0x390 [ 65.226945][ T7142] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 65.226960][ T7142] ? do_vfs_ioctl+0x27d/0x1090 [ 65.226975][ T7142] ? generic_block_fiemap+0x60/0x60 [ 65.226988][ T7142] ? _copy_to_user+0x126/0x160 [ 65.227007][ T7142] ? __fget_files+0x294/0x400 [ 65.227022][ T7142] ? tty_fasync+0x390/0x390 [ 65.227037][ T7142] __x64_sys_ioctl+0x193/0x200 [ 65.227052][ T7142] do_syscall_64+0x2d/0x70 [ 65.227065][ T7142] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.227075][ T7142] RIP: 0033:0x45cc79 [ 65.227094][ T7142] Code: 2d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.227101][ T7142] RSP: 002b:00007fcdeea74c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 65.227116][ T7142] RAX: ffffffffffffffda RBX: 000000000000f580 RCX: 000000000045cc79 [ 65.227125][ T7142] RDX: 0000000020000480 RSI: 0000000000004b72 RDI: 0000000000000008 [ 65.227134][ T7142] RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000 [ 65.227142][ T7142] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c [ 65.227152][ T7142] R13: 00007ffe3660db9f R14: 00007fcdeea759c0 R15: 000000000078bf0c [ 65.228339][ T7142] Kernel Offset: disabled [ 66.044725][ T7142] Rebooting in 86400 seconds..