On Mon, Sep 11, 2017 at 2:26 PM, Andrey Konovalov wrote: > Hi! > > I've got the following crashes while fuzzing the kernel with syzkaller. > > On commit 81a84ad3cb5711cec79f4dd53a4ce026b092c432 (Sep 3). Also attaching my .config > > usb 1-1: BOGUS urb xfer, pipe 1 != type 3 > WARNING: CPU: 1 PID: 2574 at drivers/usb/core/urb.c:449 > usb_submit_urb+0xf8a/0x11d0 > Modules linked in: > CPU: 1 PID: 2574 Comm: kworker/1:2 Not tainted 4.13.0+ #88 > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 > Workqueue: usb_hub_wq hub_event > task: ffff880067ec9a00 task.stack: ffff880067988000 > RIP: 0010:usb_submit_urb+0xf8a/0x11d0 drivers/usb/core/urb.c:448 > RSP: 0018:ffff88006798e0b0 EFLAGS: 00010082 > RAX: 0000000000000029 RBX: ffff88006b9ca200 RCX: 0000000000000000 > RDX: 0000000000000029 RSI: ffff88006c915c78 RDI: ffffed000cf31c08 > RBP: ffff88006798e1b0 R08: fffffbfff0fe00ff R09: fffffbfff0fe00ff > R10: 0000000000000001 R11: fffffbfff0fe00fe R12: 1ffff1000cf31c1d > R13: 0000000000000003 R14: 0000000000000001 R15: ffff88006b164798 > FS: 0000000000000000(0000) GS:ffff88006c900000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00007fde04686518 CR3: 000000006a539000 CR4: 00000000000006e0 > Call Trace: > xpad_try_sending_next_out_packet+0xe1/0x1d0 drivers/input/joystick/xpad.c:1000 > xpad_send_led_command drivers/input/joystick/xpad.c:1372 > xpad_led_set+0x465/0x6e0 drivers/input/joystick/xpad.c:1392 > __led_set_brightness drivers/leds/led-core.c:34 > led_set_brightness_nopm+0x53/0x100 drivers/leds/led-core.c:261 > led_set_brightness_nosleep+0x17f/0x220 drivers/leds/led-core.c:278 > led_set_brightness+0xfe/0x130 drivers/leds/led-core.c:253 > xpad_identify_controller drivers/input/joystick/xpad.c:1383 > xpad_led_probe drivers/input/joystick/xpad.c:1426 > xpad_init_input+0xd40/0xfe0 drivers/input/joystick/xpad.c:1667 > xpad_probe+0x13d4/0x1e00 drivers/input/joystick/xpad.c:1811 > usb_probe_interface+0x351/0x8d0 drivers/usb/core/driver.c:361 > really_probe drivers/base/dd.c:385 > driver_probe_device+0x610/0xa00 drivers/base/dd.c:529 > __device_attach_driver+0x230/0x290 drivers/base/dd.c:625 > bus_for_each_drv+0x15e/0x210 drivers/base/bus.c:463 > __device_attach+0x269/0x3c0 drivers/base/dd.c:682 > device_initial_probe+0x1f/0x30 drivers/base/dd.c:729 > bus_probe_device+0x1da/0x280 drivers/base/bus.c:523 > device_add+0xcf9/0x1640 drivers/base/core.c:1703 > usb_set_configuration+0x1064/0x1890 drivers/usb/core/message.c:1932 > generic_probe+0x73/0xe0 drivers/usb/core/generic.c:174 > usb_probe_device+0xaf/0xe0 drivers/usb/core/driver.c:266 > really_probe drivers/base/dd.c:385 > driver_probe_device+0x610/0xa00 drivers/base/dd.c:529 > __device_attach_driver+0x230/0x290 drivers/base/dd.c:625 > bus_for_each_drv+0x15e/0x210 drivers/base/bus.c:463 > __device_attach+0x269/0x3c0 drivers/base/dd.c:682 > device_initial_probe+0x1f/0x30 drivers/base/dd.c:729 > bus_probe_device+0x1da/0x280 drivers/base/bus.c:523 > device_add+0xcf9/0x1640 drivers/base/core.c:1703 > usb_new_device+0x7b8/0x1020 drivers/usb/core/hub.c:2457 > hub_port_connect drivers/usb/core/hub.c:4890 > hub_port_connect_change drivers/usb/core/hub.c:4996 > port_event drivers/usb/core/hub.c:5102 > hub_event+0x23c8/0x37c0 drivers/usb/core/hub.c:5182 > process_one_work+0x9fb/0x1570 kernel/workqueue.c:2097 > worker_thread+0x1e4/0x1350 kernel/workqueue.c:2231 > kthread+0x324/0x3f0 kernel/kthread.c:231 > ret_from_fork+0x25/0x30 arch/x86/entry/entry_64.S:425 > Code: 48 8b 85 30 ff ff ff 48 8d b8 98 00 00 00 e8 8e 93 07 ff 45 89 > e8 44 89 f1 4c 89 fa 48 89 c6 48 c7 c7 a0 e5 55 86 e8 20 08 8f fd <0f> > ff e9 9b f7 ff ff e8 4a 04 d6 fd e9 80 f7 ff ff e8 60 11 a6 > ---[ end trace 5b20fc700a17a457 ]--- > usb 1-1: BOGUS urb xfer, pipe 1 != type 3 > > > > usb 2-1: BOGUS urb xfer, pipe 1 != type 3 > ------------[ cut here ]------------ > WARNING: CPU: 3 PID: 7797 at drivers/usb/core/urb.c:449 > usb_submit_urb+0xf8a/0x11d0 drivers/usb/core/urb.c:448 > Kernel panic - not syncing: panic_on_warn set ... > > CPU: 3 PID: 7797 Comm: syz-executor0 Not tainted 4.13.0+ #86 > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:16 [inline] > dump_stack+0x192/0x22c lib/dump_stack.c:52 > panic+0x1cb/0x3b2 kernel/panic.c:180 > __warn+0x1c9/0x1de kernel/panic.c:541 > report_bug+0x211/0x2d0 lib/bug.c:183 > fixup_bug+0x45/0x90 arch/x86/kernel/traps.c:190 > do_trap_no_signal arch/x86/kernel/traps.c:224 [inline] > do_trap+0x265/0x390 arch/x86/kernel/traps.c:273 > do_error_trap+0x149/0x3e0 arch/x86/kernel/traps.c:310 > do_invalid_op+0x20/0x30 arch/x86/kernel/traps.c:323 > invalid_op+0x1e/0x30 arch/x86/entry/entry_64.S:846 > RIP: 0010:usb_submit_urb+0xf8a/0x11d0 drivers/usb/core/urb.c:448 > RSP: 0018:ffff88006ab26150 EFLAGS: 00010282 > RAX: 0000000000000029 RBX: ffff88003c586400 RCX: 0000000000000000 > RDX: 0000000000000029 RSI: ffffffff812b6153 RDI: ffffed000d564c1c > RBP: ffff88006ab26250 R08: fffffbfff0fe00ff R09: fffffbfff0fe00ff > R10: ffff88006a311e80 R11: fffffbfff0fe00fe R12: 1ffff1000d564c31 > R13: 0000000000000003 R14: 0000000000000001 R15: ffff88006c9bfa38 > xpad_start_input+0x43/0x100 drivers/input/joystick/xpad.c:1457 > xpad_open+0x3c/0x50 drivers/input/joystick/xpad.c:1542 > input_open_device+0x17a/0x250 drivers/input/input.c:603 > evbug_connect+0x10f/0x260 drivers/input/evbug.c:65 > input_attach_handler+0x59a/0x740 drivers/input/input.c:1002 > input_register_device+0xcb8/0xf90 drivers/input/input.c:2159 > xpad_init_input+0xaad/0xfe0 drivers/input/joystick/xpad.c:1671 > xpad_probe+0x13d4/0x1e00 drivers/input/joystick/xpad.c:1811 > usb_probe_interface+0x351/0x8d0 drivers/usb/core/driver.c:361 > really_probe drivers/base/dd.c:385 [inline] > driver_probe_device+0x610/0xa00 drivers/base/dd.c:529 > __device_attach_driver+0x230/0x290 drivers/base/dd.c:625 > bus_for_each_drv+0x15e/0x210 drivers/base/bus.c:463 > __device_attach+0x269/0x3c0 drivers/base/dd.c:682 > device_initial_probe+0x1f/0x30 drivers/base/dd.c:729 > bus_probe_device+0x1da/0x280 drivers/base/bus.c:523 > device_add+0xcf9/0x1640 drivers/base/core.c:1703 > usb_set_configuration+0x1064/0x1890 drivers/usb/core/message.c:1932 > generic_probe+0x73/0xe0 drivers/usb/core/generic.c:174 > usb_probe_device+0xaf/0xe0 drivers/usb/core/driver.c:266 > really_probe drivers/base/dd.c:385 [inline] > driver_probe_device+0x610/0xa00 drivers/base/dd.c:529 > __device_attach_driver+0x230/0x290 drivers/base/dd.c:625 > bus_for_each_drv+0x15e/0x210 drivers/base/bus.c:463 > __device_attach+0x269/0x3c0 drivers/base/dd.c:682 > device_initial_probe+0x1f/0x30 drivers/base/dd.c:729 > bus_probe_device+0x1da/0x280 drivers/base/bus.c:523 > device_add+0xcf9/0x1640 drivers/base/core.c:1703 > usb_new_device+0x7b8/0x1020 drivers/usb/core/hub.c:2457 > hub_port_connect drivers/usb/core/hub.c:4890 [inline] > hub_port_connect_change drivers/usb/core/hub.c:4996 [inline] > port_event drivers/usb/core/hub.c:5102 [inline]