[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 14.860265][ C1] random: crng init done [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.217' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 53.318617][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 53.558577][ T12] usb 1-1: Using ep0 maxpacket: 16 [ 53.678701][ T12] usb 1-1: config 0 has an invalid interface number: 240 but max is 0 [ 53.687011][ T12] usb 1-1: config 0 has no interface number 0 [ 53.693399][ T12] usb 1-1: config 0 interface 240 altsetting 1 bulk endpoint 0x5 has invalid maxpacket 0 [ 53.703360][ T12] usb 1-1: config 0 interface 240 has no altsetting 0 [ 53.710251][ T12] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=e2.3c [ 53.720640][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 53.730371][ T12] usb 1-1: config 0 descriptor?? [ 53.781250][ T12] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 53.789107][ T12] usb 1-1: selecting invalid altsetting 0 [ 53.795549][ T102] pvrusb2: Invalid write control endpoint [ 53.808500][ T102] pvrusb2: Invalid write control endpoint [ 53.814446][ T102] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 53.824229][ T102] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 53.832058][ T102] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 53.842289][ T102] pvrusb2: Device being rendered inoperable [ 53.848814][ T102] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 53.856013][ T102] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 53.865130][ T102] pvrusb2: Attached sub-driver cx25840 [ 53.874898][ T102] pvrusb2: Attempted to execute control transfer when device not ok [ 53.883494][ T102] pvrusb2: Attempted to execute control transfer when device not ok [ 53.891705][ T102] pvrusb2: Attempted to execute control transfer when device not ok [ 53.899803][ T102] pvrusb2: Attempted to execute control transfer when device not ok [ 53.907770][ T102] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 53.930144][ T102] pvrusb2: Attempted to execute control transfer when device not ok [ 53.939031][ T102] tda9887 0-0043: creating new instance [ 53.944736][ T102] tda9887 0-0043: tda988[5/6/7] found [ 53.950351][ T102] pvrusb2: Attempted to execute control transfer when device not ok [ 53.958500][ T102] tda9887 0-0043: i2c i/o error: rc == -5 (should be 4) [ 53.965426][ T102] tuner: 0-0043: Tuner 74 found with type(s) Radio TV. [ 53.972577][ T102] pvrusb2: Attached sub-driver tuner tun: can't open /dev/net/tun: please enable CONFIG_TUN=y otherwise fuzzing or reproducing might not work as intended [ 53.977879][ T102] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 53.990800][ T102] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 53.993743][ T101] usb 1-1: USB disconnect, device number 2 [ 54.019451][ T102] tda9887 0-0043: destroying instance [ 54.025224][ T102] ------------[ cut here ]------------ [ 54.030837][ T102] sysfs group 'power' not found for kobject 'i2c-0' [ 54.037485][ T102] WARNING: CPU: 1 PID: 102 at fs/sysfs/group.c:278 sysfs_remove_group+0x155/0x1b0 [ 54.046776][ T102] Kernel panic - not syncing: panic_on_warn set ... [ 54.053454][ T102] CPU: 1 PID: 102 Comm: pvrusb2-context Not tainted 5.3.0+ #0 [ 54.060898][ T102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.070962][ T102] Call Trace: [ 54.074454][ T102] dump_stack+0xca/0x13e [ 54.078724][ T102] ? sysfs_remove_group+0x80/0x1b0 [ 54.083823][ T102] panic+0x2a3/0x6da [ 54.087702][ T102] ? add_taint.cold+0x16/0x16 [ 54.092374][ T102] ? __probe_kernel_read+0x188/0x1d0 [ 54.097667][ T102] ? __warn.cold+0x5/0x4a [ 54.101981][ T102] ? __warn+0xe3/0x1e0 [ 54.106343][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 54.111521][ T102] __warn.cold+0x20/0x4a [ 54.115750][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 54.120929][ T102] report_bug+0x262/0x2a0 [ 54.125251][ T102] do_error_trap+0x12b/0x1e0 [ 54.129822][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 54.134999][ T102] do_invalid_op+0x32/0x40 [ 54.139498][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 54.144678][ T102] invalid_op+0x23/0x30 [ 54.148827][ T102] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 54.154738][ T102] Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 60 d0 d0 85 e8 e0 9c 8a ff <0f> 0b eb 95 e8 f2 c7 db ff e9 d2 fe ff ff 48 89 df e8 e5 c7 db ff [ 54.174438][ T102] RSP: 0018:ffff8881d5817c40 EFLAGS: 00010282 [ 54.180493][ T102] RAX: 0000000000000000 RBX: ffffffff85f30ea0 RCX: 0000000000000000 [ 54.189124][ T102] RDX: 0000000000000000 RSI: ffffffff8128d9ad RDI: ffffed103ab02f7a [ 54.197093][ T102] RBP: 0000000000000000 R08: ffff8881d5ec1800 R09: ffffed103b665d58 [ 54.205051][ T102] R10: ffffed103b665d57 R11: ffff8881db32eabf R12: ffff8881d07d0338 [ 54.213134][ T102] R13: ffffffff85f31440 R14: ffff8881d07d0900 R15: ffff8881d5ec1800 [ 54.221121][ T102] ? vprintk_func+0x7d/0x113 [ 54.225697][ T102] dpm_sysfs_remove+0x97/0xb0 [ 54.230381][ T102] device_del+0x12a/0xb10 [ 54.237470][ T102] ? __pm_runtime_disable+0x148/0x3d0 [ 54.242823][ T102] ? __device_links_no_driver+0x240/0x240 [ 54.248521][ T102] ? pm_runtime_barrier+0x260/0x260 [ 54.253797][ T102] ? lockdep_init_map+0x1b0/0x5e0 [ 54.259015][ T102] ? lockdep_init_map+0x1b0/0x5e0 [ 54.264024][ T102] device_unregister+0x11/0x30 [ 54.268868][ T102] i2c_del_adapter+0x42b/0x590 [ 54.274847][ T102] ? del_timer_sync+0x11e/0x130 [ 54.280114][ T102] pvr2_i2c_core_done+0x69/0xb6 [ 54.285040][ T102] pvr2_hdw_destroy+0x179/0x370 [ 54.289901][ T102] pvr2_context_destroy+0x84/0x230 [ 54.294995][ T102] pvr2_context_thread_func+0x657/0x860 [ 54.300716][ T102] ? lock_acquire+0x127/0x320 [ 54.305374][ T102] ? pvr2_context_destroy+0x230/0x230 [ 54.310727][ T102] ? finish_wait+0x260/0x260 [ 54.315294][ T102] ? lockdep_hardirqs_on+0x379/0x580 [ 54.320567][ T102] ? __kthread_parkme+0x10a/0x1c0 [ 54.325805][ T102] ? pvr2_context_destroy+0x230/0x230 [ 54.331466][ T102] kthread+0x318/0x420 [ 54.335544][ T102] ? kthread_create_on_node+0xf0/0xf0 [ 54.340943][ T102] ret_from_fork+0x24/0x30 [ 54.346410][ T102] Kernel Offset: disabled [ 54.350809][ T102] Rebooting in 86400 seconds..