Warning: Permanently added '10.128.0.146' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 45.395536][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 45.635541][ T12] usb 1-1: Using ep0 maxpacket: 16 [ 45.755640][ T12] usb 1-1: config 0 has an invalid interface number: 61 but max is 0 [ 45.764005][ T12] usb 1-1: config 0 has no interface number 0 [ 45.770409][ T12] usb 1-1: config 0 interface 61 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 0 [ 45.780390][ T12] usb 1-1: New USB device found, idVendor=2040, idProduct=026d, bcdDevice=9e.d7 [ 45.789445][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 45.798653][ T12] usb 1-1: config 0 descriptor?? [ 45.837194][ T12] em28xx 1-1:0.61: New device @ 480 Mbps (2040:026d, interface 61, class 61) [ 45.846285][ T12] em28xx 1-1:0.61: DVB interface 61 found: bulk executing program [ 46.075679][ T12] em28xx 1-1:0.61: unknown em28xx chip ID (0) [ 46.235589][ T12] em28xx 1-1:0.61: reading from i2c device at 0xa0 failed (error=-5) [ 46.243879][ T12] em28xx 1-1:0.61: board has no eeprom [ 46.355490][ T12] em28xx 1-1:0.61: Identified as Hauppauge WinTV-dualHD 01595 ATSC/QAM (card=100) [ 46.365299][ T12] em28xx 1-1:0.61: dvb set to bulk mode. [ 46.495591][ T12] em28xx 1-1:0.61: unknown em28xx chip ID (0) [ 46.645552][ T12] em28xx 1-1:0.61: reading from i2c device at 0xa0 failed (error=-5) [ 46.653799][ T12] em28xx 1-1:0.61: board has no eeprom [ 46.765535][ T12] em28xx 1-1:0.61: Identified as Hauppauge WinTV-dualHD 01595 ATSC/QAM (card=100) [ 46.774877][ T12] em28xx 1-1:0.61: dvb ts2 set to bulk mode. [ 47.016340][ T107] em28xx 1-1:0.61: Binding DVB extension [ 47.024457][ T12] usb 1-1: USB disconnect, device number 2 [ 47.031400][ T12] em28xx 1-1:0.61: Disconnecting em28xx #1 [ 47.037563][ T12] WARNING: CPU: 0 PID: 12 at kernel/workqueue.c:3031 __flush_work+0x93f/0xa80 [ 47.046399][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 47.053077][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.2.0-rc6+ #15 [ 47.060595][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.070756][ T12] Workqueue: usb_hub_wq hub_event [ 47.075878][ T12] Call Trace: [ 47.079156][ T12] dump_stack+0xca/0x13e [ 47.083398][ T12] ? __flush_work+0x840/0xa80 [ 47.088171][ T12] panic+0x292/0x6c9 [ 47.092047][ T12] ? __warn_printk+0xf3/0xf3 [ 47.096612][ T12] ? __flush_work+0x93f/0xa80 [ 47.101269][ T12] ? __probe_kernel_read+0x16c/0x1b0 [ 47.106547][ T12] ? __warn.cold+0x5/0x4b [ 47.110857][ T12] ? __warn+0xe4/0x1c0 [ 47.114914][ T12] ? __flush_work+0x93f/0xa80 [ 47.119685][ T12] __warn.cold+0x20/0x4b [ 47.123909][ T12] ? __flush_work+0x93f/0xa80 [ 47.128846][ T12] report_bug+0x262/0x2a0 [ 47.133248][ T12] do_error_trap+0x12b/0x1e0 [ 47.137826][ T12] ? __flush_work+0x93f/0xa80 [ 47.142497][ T12] do_invalid_op+0x32/0x40 [ 47.146983][ T12] ? __flush_work+0x93f/0xa80 [ 47.151646][ T12] invalid_op+0x14/0x20 [ 47.155889][ T12] RIP: 0010:__flush_work+0x93f/0xa80 [ 47.161156][ T12] Code: e8 d6 4f 23 00 48 c7 c2 c9 8b 19 81 be 01 00 00 00 45 31 e4 48 c7 c7 a0 83 af 86 e8 6b 4d 0b 00 e9 d9 fb ff ff e8 b1 4f 23 00 <0f> 0b 45 31 e4 e9 ca fb ff ff e8 a2 4f 23 00 e8 0d 08 12 00 31 ff [ 47.180848][ T12] RSP: 0018:ffff8881d9e0f720 EFLAGS: 00010293 [ 47.186899][ T12] RAX: ffff8881d9df9800 RBX: ffff8881cff71940 RCX: dffffc0000000000 [ 47.195248][ T12] RDX: 0000000000000000 RSI: ffffffff81198bff RDI: 0000000000000001 [ 47.203207][ T12] RBP: ffff8881d9e0f888 R08: ffff8881d9df9800 R09: ffffed103b645d30 [ 47.211158][ T12] R10: ffffed103b645d2f R11: ffff8881db22e97f R12: 0000000000000000 [ 47.219401][ T12] R13: 0000000000000001 R14: ffff8881cf569bd8 R15: ffff8881cff71958 [ 47.227474][ T12] ? __flush_work+0x93f/0xa80 [ 47.232141][ T12] ? wq_pool_ids_show+0x310/0x310 [ 47.237235][ T12] ? __dev_printk+0x1db/0x203 [ 47.241997][ T12] ? _dev_info+0xd7/0x109 [ 47.246449][ T12] ? _dev_notice+0x109/0x109 [ 47.251024][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 47.256288][ T12] ? usb_hcd_flush_endpoint+0x14c/0x2d0 [ 47.262004][ T12] ? usb_disable_endpoint+0x1ba/0x1f0 [ 47.267374][ T12] em28xx_usb_disconnect.cold+0x280/0x2a6 [ 47.273105][ T12] usb_unbind_interface+0x1bd/0x8a0 [ 47.278413][ T12] ? usb_autoresume_device+0x60/0x60 [ 47.283682][ T12] device_release_driver_internal+0x404/0x4c0 [ 47.289883][ T12] bus_remove_device+0x2dc/0x4a0 [ 47.294978][ T12] device_del+0x460/0xb80 [ 47.299308][ T12] ? __device_links_no_driver+0x240/0x240 [ 47.305015][ T12] ? usb_remove_ep_devs+0x3e/0x80 [ 47.310022][ T12] ? remove_intf_ep_devs+0x13f/0x1d0 [ 47.315367][ T12] usb_disable_device+0x211/0x690 [ 47.320609][ T12] usb_disconnect+0x284/0x830 [ 47.325325][ T12] hub_event+0x13bd/0x3550 [ 47.329839][ T12] ? hub_port_debounce+0x260/0x260 [ 47.335014][ T12] process_one_work+0x905/0x1570 [ 47.339944][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 47.345813][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 47.350817][ T12] worker_thread+0x7ab/0xe20 [ 47.355496][ T12] ? process_one_work+0x1570/0x1570 [ 47.360674][ T12] kthread+0x30b/0x410 [ 47.364844][ T12] ? kthread_park+0x1a0/0x1a0 [ 47.369499][ T12] ret_from_fork+0x24/0x30 [ 47.374737][ T12] Kernel Offset: disabled [ 47.379088][ T12] Rebooting in 86400 seconds..