usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Unable to get valid EDID from device/display ------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 5 at drivers/usb/core/urb.c:493 usb_submit_urb+0x9c6/0x11b0 drivers/usb/core/urb.c:493 Modules linked in: CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_submit_urb+0x9c6/0x11b0 drivers/usb/core/urb.c:493 Code: 00 4c 89 5c 24 18 44 89 44 24 10 e8 94 84 69 ff 44 8b 44 24 10 44 89 f9 4c 89 ea 48 89 c6 48 c7 c7 a0 82 48 88 e8 fc 10 98 02 <0f> 0b 4c 8b 5c 24 18 e9 f2 fa ff ff 48 8d 7d 1c 48 b8 00 00 00 00 RSP: 0018:ffffc9000006ee58 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff8812bd40 RDI: fffff5200000ddbd RBP: ffff8881100cf000 R08: 0000000000000001 R09: ffff8881f64310e7 R10: ffffed103ec8621c R11: 3a312d3120627375 R12: ffff88810338f800 R13: ffff888111cb4b80 R14: 0000000000000001 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005609b62098d0 CR3: 000000010d04c000 CR4: 0000000000350ef0 Call Trace: dlfb_submit_urb+0x6c/0x140 drivers/video/fbdev/udlfb.c:1969 dlfb_set_video_mode+0x1fe2/0x2940 drivers/video/fbdev/udlfb.c:315 dlfb_ops_set_par+0x275/0x890 drivers/video/fbdev/udlfb.c:1110 dlfb_usb_probe.cold+0x108b/0x1cf4 drivers/video/fbdev/udlfb.c:1732 usb_probe_interface+0x26a/0x650 drivers/usb/core/driver.c:396 really_probe+0x1f9/0x940 drivers/base/dd.c:576 driver_probe_device+0xee/0x1a0 drivers/base/dd.c:763 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431 __device_attach+0x1db/0x3e0 drivers/base/dd.c:938 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491 device_add+0x97d/0x1c30 drivers/base/core.c:3319 usb_set_configuration+0xc01/0x1420 drivers/usb/core/message.c:2164 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238 usb_probe_device+0x8f/0x200 drivers/usb/core/driver.c:293 really_probe+0x1f9/0x940 drivers/base/dd.c:576 driver_probe_device+0xee/0x1a0 drivers/base/dd.c:763 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431 __device_attach+0x1db/0x3e0 drivers/base/dd.c:938 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491 device_add+0x97d/0x1c30 drivers/base/core.c:3319 usb_new_device.cold+0x6ad/0xec9 drivers/usb/core/hub.c:2556 hub_port_connect drivers/usb/core/hub.c:5276 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x1857/0x32a0 drivers/usb/core/hub.c:5644 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275 worker_thread+0x598/0xf80 kernel/workqueue.c:2421 kthread+0x36f/0x450 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 irq event stamp: 415409 hardirqs last enabled at (415447): [] __call_rcu kernel/rcu/tree.c:3073 [inline] hardirqs last enabled at (415447): [] call_rcu+0x32a/0x7c0 kernel/rcu/tree.c:3114 hardirqs last disabled at (415548): [] __schedule+0x1225/0x2180 kernel/sched/core.c:4972 softirqs last enabled at (415614): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last enabled at (415614): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last enabled at (415614): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:649 softirqs last disabled at (415627): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last disabled at (415627): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last disabled at (415627): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:649 ---[ end trace 66a11d0f8031a8a7 ]--- usb 1-1: dlfb_urb_completion - nonzero write bulk status received: -115 usb 1-1: submit urb error: -22 udlfb: probe of 1-1:3.127 failed with error -22 [drm] vendor descriptor length:b9 data:00 00 00 00 00 00 00 00 00 00 00 [drm:udl_init.cold] *ERROR* Unrecognized vendor firmware descriptor [drm:udl_init] *ERROR* Selecting channel failed [drm] Initialized udl 0.0.1 20120220 for 1-1:3.127 on minor 2 [drm] Initialized udl on minor 2 [drm:udl_get_edid_block] *ERROR* Read EDID byte 0 failed err ffffffb9 udl 1-1:3.127: [drm] Cannot find any crtc or sizes usb 1-1: USB disconnect, device number 2 usb 1-1: new high-speed USB device number 3 using dummy_hcd usb 1-1: Using ep0 maxpacket: 8 usb 1-1: unable to get BOS descriptor or descriptor too short usb 1-1: config 3 has an invalid interface number: 127 but max is 1 usb 1-1: config 3 has an invalid interface number: 103 but max is 1 usb 1-1: config 3 has an invalid interface descriptor of length 2, skipping usb 1-1: config 3 has an invalid descriptor of length 32, skipping remainder of the config usb 1-1: config 3 has no interface number 0 usb 1-1: config 3 has no interface number 1 usb 1-1: config 3 interface 127 altsetting 255 endpoint 0x9 has invalid maxpacket 512, setting to 64 usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint with address 0x0, skipping usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint with address 0x0, skipping usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint descriptor of length 2, skipping usb 1-1: config 3 interface 127 altsetting 255 endpoint 0xA has invalid maxpacket 512, setting to 64 usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint with address 0x0, skipping usb 1-1: config 3 interface 127 altsetting 255 endpoint 0x2 has invalid maxpacket 1023, setting to 64 usb 1-1: config 3 interface 127 altsetting 255 endpoint 0x7 has an invalid bInterval 0, changing to 7 usb 1-1: config 3 interface 127 altsetting 255 has a duplicate endpoint with address 0x7, skipping usb 1-1: config 3 interface 127 altsetting 255 has 11 endpoint descriptors, different from the interface descriptor's value: 10 usb 1-1: config 3 interface 103 altsetting 0 has 0 endpoint descriptors, different from the interface descriptor's value: 2 usb 1-1: config 3 interface 127 has no altsetting 0 usb 1-1: Dual-Role OTG device on HNP port usb 1-1: New USB device found, idVendor=17e9, idProduct=b9c1, bcdDevice=e3.8c usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: syz usb 1-1: Manufacturer: syz usb 1-1: SerialNumber: syz udlfb 1-1:3.127: vendor descriptor not available (-71) usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Unable to get valid EDID from device/display ------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 5 at drivers/usb/core/urb.c:493 usb_submit_urb+0x9c6/0x11b0 drivers/usb/core/urb.c:493 Modules linked in: CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G W 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_submit_urb+0x9c6/0x11b0 drivers/usb/core/urb.c:493 Code: 00 4c 89 5c 24 18 44 89 44 24 10 e8 94 84 69 ff 44 8b 44 24 10 44 89 f9 4c 89 ea 48 89 c6 48 c7 c7 a0 82 48 88 e8 fc 10 98 02 <0f> 0b 4c 8b 5c 24 18 e9 f2 fa ff ff 48 8d 7d 1c 48 b8 00 00 00 00 RSP: 0018:ffffc9000006ee58 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff8812bd40 RDI: fffff5200000ddbd RBP: ffff888116db6000 R08: 0000000000000001 R09: ffff8881f64310e7 R10: ffffed103ec8621c R11: 3a312d3120627375 R12: ffff88811f7a5700 R13: ffff8881162be900 R14: 0000000000000001 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f229176b000 CR3: 000000011bbd2000 CR4: 0000000000350ef0 Call Trace: dlfb_submit_urb+0x6c/0x140 drivers/video/fbdev/udlfb.c:1969 dlfb_set_video_mode+0x1fe2/0x2940 drivers/video/fbdev/udlfb.c:315 dlfb_ops_set_par+0x275/0x890 drivers/video/fbdev/udlfb.c:1110 dlfb_usb_probe.cold+0x108b/0x1cf4 drivers/video/fbdev/udlfb.c:1732 usb_probe_interface+0x26a/0x650 drivers/usb/core/driver.c:396 really_probe+0x1f9/0x940 drivers/base/dd.c:576 driver_probe_device+0xee/0x1a0 drivers/base/dd.c:763 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431 __device_attach+0x1db/0x3e0 drivers/base/dd.c:938 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491 device_add+0x97d/0x1c30 drivers/base/core.c:3319 usb_set_configuration+0xc01/0x1420 drivers/usb/core/message.c:2164 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238 usb_probe_device+0x8f/0x200 drivers/usb/core/driver.c:293 really_probe+0x1f9/0x940 drivers/base/dd.c:576 driver_probe_device+0xee/0x1a0 drivers/base/dd.c:763 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431 __device_attach+0x1db/0x3e0 drivers/base/dd.c:938 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491 device_add+0x97d/0x1c30 drivers/base/core.c:3319 usb_new_device.cold+0x6ad/0xec9 drivers/usb/core/hub.c:2556 hub_port_connect drivers/usb/core/hub.c:5276 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x1857/0x32a0 drivers/usb/core/hub.c:5644 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0x733/0xf80 kernel/workqueue.c:2423 kthread+0x36f/0x450 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 irq event stamp: 436671 hardirqs last enabled at (436813): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (436813): [] _raw_spin_unlock_irq+0x1f/0x80 kernel/locking/spinlock.c:199 hardirqs last disabled at (436890): [] __schedule+0x1225/0x2180 kernel/sched/core.c:4972 softirqs last enabled at (436916): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last enabled at (436916): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last enabled at (436916): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:649 softirqs last disabled at (436929): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last disabled at (436929): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last disabled at (436929): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:649 ---[ end trace 66a11d0f8031a8a8 ]--- usb 1-1: dlfb_urb_completion - nonzero write bulk status received: -115 usb 1-1: submit urb error: -22 udlfb: probe of 1-1:3.127 failed with error -22 [drm] vendor descriptor length:b9 data:00 00 00 00 00 00 00 00 00 00 00 [drm:udl_init.cold] *ERROR* Unrecognized vendor firmware descriptor [drm:udl_init] *ERROR* Selecting channel failed [drm] Initialized udl 0.0.1 20120220 for 1-1:3.127 on minor 2 [drm] Initialized udl on minor 2 [drm:udl_get_edid_block] *ERROR* Read EDID byte 0 failed err ffffffb9 udl 1-1:3.127: [drm] Cannot find any crtc or sizes usb 1-1: USB disconnect, device number 3 usb 1-1: new high-speed USB device number 4 using dummy_hcd usb 1-1: Using ep0 maxpacket: 8 usb 1-1: unable to get BOS descriptor or descriptor too short usb 1-1: config 3 has an invalid interface number: 127 but max is 1 usb 1-1: config 3 has an invalid interface number: 103 but max is 1 usb 1-1: config 3 has an invalid interface descriptor of length 2, skipping usb 1-1: config 3 has an invalid descriptor of length 32, skipping remainder of the config usb 1-1: config 3 has no interface number 0 usb 1-1: config 3 has no interface number 1 usb 1-1: config 3 interface 127 altsetting 255 endpoint 0x9 has invalid maxpacket 512, setting to 64 usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint with address 0x0, skipping usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint with address 0x0, skipping usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint descriptor of length 2, skipping usb 1-1: config 3 interface 127 altsetting 255 endpoint 0xA has invalid maxpacket 512, setting to 64 usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint with address 0x0, skipping usb 1-1: config 3 interface 127 altsetting 255 endpoint 0x2 has invalid maxpacket 1023, setting to 64 usb 1-1: config 3 interface 127 altsetting 255 endpoint 0x7 has an invalid bInterval 0, changing to 7 usb 1-1: config 3 interface 127 altsetting 255 has a duplicate endpoint with address 0x7, skipping usb 1-1: config 3 interface 127 altsetting 255 has 11 endpoint descriptors, different from the interface descriptor's value: 10 usb 1-1: config 3 interface 103 altsetting 0 has 0 endpoint descriptors, different from the interface descriptor's value: 2 usb 1-1: config 3 interface 127 has no altsetting 0 usb 1-1: Dual-Role OTG device on HNP port usb 1-1: New USB device found, idVendor=17e9, idProduct=b9c1, bcdDevice=e3.8c usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: syz usb 1-1: Manufacturer: syz usb 1-1: SerialNumber: syz udlfb 1-1:3.127: vendor descriptor not available (-71) usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Unable to get valid EDID from device/display ------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 5 at drivers/usb/core/urb.c:493 usb_submit_urb+0x9c6/0x11b0 drivers/usb/core/urb.c:493 Modules linked in: CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G W 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_submit_urb+0x9c6/0x11b0 drivers/usb/core/urb.c:493 Code: 00 4c 89 5c 24 18 44 89 44 24 10 e8 94 84 69 ff 44 8b 44 24 10 44 89 f9 4c 89 ea 48 89 c6 48 c7 c7 a0 82 48 88 e8 fc 10 98 02 <0f> 0b 4c 8b 5c 24 18 e9 f2 fa ff ff 48 8d 7d 1c 48 b8 00 00 00 00 RSP: 0018:ffffc9000006ee58 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff8812bd40 RDI: fffff5200000ddbd RBP: ffff8881088a6000 R08: 0000000000000001 R09: ffff8881f64310e7 R10: ffffed103ec8621c R11: 3a312d3120627375 R12: ffff888117651d00 R13: ffff88811307da40 R14: 0000000000000001 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f229177c0a0 CR3: 000000011bbd2000 CR4: 0000000000350ef0 Call Trace: dlfb_submit_urb+0x6c/0x140 drivers/video/fbdev/udlfb.c:1969 dlfb_set_video_mode+0x1fe2/0x2940 drivers/video/fbdev/udlfb.c:315 dlfb_ops_set_par+0x275/0x890 drivers/video/fbdev/udlfb.c:1110 dlfb_usb_probe.cold+0x108b/0x1cf4 drivers/video/fbdev/udlfb.c:1732 usb_probe_interface+0x26a/0x650 drivers/usb/core/driver.c:396 really_probe+0x1f9/0x940 drivers/base/dd.c:576 driver_probe_device+0xee/0x1a0 drivers/base/dd.c:763 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431 __device_attach+0x1db/0x3e0 drivers/base/dd.c:938 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491 device_add+0x97d/0x1c30 drivers/base/core.c:3319 usb_set_configuration+0xc01/0x1420 drivers/usb/core/message.c:2164 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238 usb_probe_device+0x8f/0x200 drivers/usb/core/driver.c:293 really_probe+0x1f9/0x940 drivers/base/dd.c:576 driver_probe_device+0xee/0x1a0 drivers/base/dd.c:763 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431 __device_attach+0x1db/0x3e0 drivers/base/dd.c:938 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491 device_add+0x97d/0x1c30 drivers/base/core.c:3319 usb_new_device.cold+0x6ad/0xec9 drivers/usb/core/hub.c:2556 hub_port_connect drivers/usb/core/hub.c:5276 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x1857/0x32a0 drivers/usb/core/hub.c:5644 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0x733/0xf80 kernel/workqueue.c:2423 kthread+0x36f/0x450 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 irq event stamp: 463141 hardirqs last enabled at (463151): [] console_unlock+0x767/0xa00 kernel/printk/printk.c:2605 hardirqs last disabled at (463166): [] console_unlock+0x667/0xa00 kernel/printk/printk.c:2520 softirqs last enabled at (463164): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last enabled at (463164): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last enabled at (463164): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:649 softirqs last disabled at (463185): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last disabled at (463185): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last disabled at (463185): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:649 ---[ end trace 66a11d0f8031a8a9 ]--- usb 1-1: dlfb_urb_completion - nonzero write bulk status received: -115 usb 1-1: submit urb error: -22 udlfb: probe of 1-1:3.127 failed with error -22 [drm] vendor descriptor length:b9 data:00 00 00 00 00 00 00 00 00 00 00 [drm:udl_init.cold] *ERROR* Unrecognized vendor firmware descriptor [drm:udl_init] *ERROR* Selecting channel failed [drm] Initialized udl 0.0.1 20120220 for 1-1:3.127 on minor 2 [drm] Initialized udl on minor 2 [drm:udl_get_edid_block] *ERROR* Read EDID byte 0 failed err ffffffb9 udl 1-1:3.127: [drm] Cannot find any crtc or sizes usb 1-1: USB disconnect, device number 4 usb 1-1: new high-speed USB device number 5 using dummy_hcd usb 1-1: Using ep0 maxpacket: 8 usb 1-1: unable to get BOS descriptor or descriptor too short usb 1-1: config 3 has an invalid interface number: 127 but max is 1 usb 1-1: config 3 has an invalid interface number: 103 but max is 1 usb 1-1: config 3 has an invalid interface descriptor of length 2, skipping usb 1-1: config 3 has an invalid descriptor of length 32, skipping remainder of the config usb 1-1: config 3 has no interface number 0 usb 1-1: config 3 has no interface number 1 usb 1-1: config 3 interface 127 altsetting 255 endpoint 0x9 has invalid maxpacket 512, setting to 64 usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint with address 0x0, skipping usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint with address 0x0, skipping usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint descriptor of length 2, skipping usb 1-1: config 3 interface 127 altsetting 255 endpoint 0xA has invalid maxpacket 512, setting to 64 usb 1-1: config 3 interface 127 altsetting 255 has an invalid endpoint with address 0x0, skipping usb 1-1: config 3 interface 127 altsetting 255 endpoint 0x2 has invalid maxpacket 1023, setting to 64 usb 1-1: config 3 interface 127 altsetting 255 endpoint 0x7 has an invalid bInterval 0, changing to 7 usb 1-1: config 3 interface 127 altsetting 255 has a duplicate endpoint with address 0x7, skipping usb 1-1: config 3 interface 127 altsetting 255 has 11 endpoint descriptors, different from the interface descriptor's value: 10 usb 1-1: config 3 interface 103 altsetting 0 has 0 endpoint descriptors, different from the interface descriptor's value: 2 usb 1-1: config 3 interface 127 has no altsetting 0 usb 1-1: Dual-Role OTG device on HNP port usb 1-1: New USB device found, idVendor=17e9, idProduct=b9c1, bcdDevice=e3.8c usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: syz usb 1-1: Manufacturer: syz usb 1-1: SerialNumber: syz udlfb 1-1:3.127: vendor descriptor not available (-71) usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Unable to get valid EDID from device/display ------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 5 at drivers/usb/core/urb.c:493 usb_submit_urb+0x9c6/0x11b0 drivers/usb/core/urb.c:493 Modules linked in: CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G W 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_submit_urb+0x9c6/0x11b0 drivers/usb/core/urb.c:493 Code: 00 4c 89 5c 24 18 44 89 44 24 10 e8 94 84 69 ff 44 8b 44 24 10 44 89 f9 4c 89 ea 48 89 c6 48 c7 c7 a0 82 48 88 e8 fc 10 98 02 <0f> 0b 4c 8b 5c 24 18 e9 f2 fa ff ff 48 8d 7d 1c 48 b8 00 00 00 00 RSP: 0018:ffffc9000006ee58 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff8812bd40 RDI: fffff5200000ddbd RBP: ffff888117472000 R08: 0000000000000001 R09: ffff8881f64310e7 R10: ffffed103ec8621c R11: 3a312d3120627375 R12: ffff88810bc8fa00 R13: ffff88810af3cb80 R14: 0000000000000001 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fceed90e740 CR3: 000000011bbd2000 CR4: 0000000000350ef0 Call Trace: dlfb_submit_urb+0x6c/0x140 drivers/video/fbdev/udlfb.c:1969 dlfb_set_video_mode+0x1fe2/0x2940 drivers/video/fbdev/udlfb.c:315 dlfb_ops_set_par+0x275/0x890 drivers/video/fbdev/udlfb.c:1110 dlfb_usb_probe.cold+0x108b/0x1cf4 drivers/video/fbdev/udlfb.c:1732 usb_probe_interface+0x26a/0x650 drivers/usb/core/driver.c:396 really_probe+0x1f9/0x940 drivers/base/dd.c:576 driver_probe_device+0xee/0x1a0 drivers/base/dd.c:763 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431 __device_attach+0x1db/0x3e0 drivers/base/dd.c:938 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491 device_add+0x97d/0x1c30 drivers/base/core.c:3319 usb_set_configuration+0xc01/0x1420 drivers/usb/core/message.c:2164 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238 usb_probe_device+0x8f/0x200 drivers/usb/core/driver.c:293 really_probe+0x1f9/0x940 drivers/base/dd.c:576 driver_probe_device+0xee/0x1a0 drivers/base/dd.c:763 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431 __device_attach+0x1db/0x3e0 drivers/base/dd.c:938 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491 device_add+0x97d/0x1c30 drivers/base/core.c:3319 usb_new_device.cold+0x6ad/0xec9 drivers/usb/core/hub.c:2556 hub_port_connect drivers/usb/core/hub.c:5276 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x1857/0x32a0 drivers/usb/core/hub.c:5644 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0x733/0xf80 kernel/workqueue.c:2423 kthread+0x36f/0x450 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 irq event stamp: 487503 hardirqs last enabled at (487539): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (487539): [] _raw_spin_unlock_irq+0x1f/0x80 kernel/locking/spinlock.c:199 hardirqs last disabled at (487616): [] __schedule+0x1225/0x2180 kernel/sched/core.c:4972 softirqs last enabled at (487642): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last enabled at (487642): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last enabled at (487642): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:649 softirqs last disabled at (487655): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last disabled at (487655): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last disabled at (487655): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:649 ---[ end trace 66a11d0f8031a8aa ]--- usb 1-1: dlfb_urb_completion - nonzero write bulk status received: -115 usb 1-1: submit urb error: -22 udlfb: probe of 1-1:3.127 failed with error -22 [drm] vendor descriptor length:b9 data:00 00 00 00 00 00 00 00 00 00 00 [drm:udl_init.cold] *ERROR* Unrecognized vendor firmware descriptor [drm:udl_init] *ERROR* Selecting channel failed [drm] Initialized udl 0.0.1 20120220 for 1-1:3.127 on minor 2 [drm] Initialized udl on minor 2 [drm:udl_get_edid_block] *ERROR* Read EDID byte 0 failed err ffffffb9 udl 1-1:3.127: [drm] Cannot find any crtc or sizes usb 1-1: USB disconnect, device number 5