bisecting fixing commit since 894d6f401b21865962aba776ecaa918b2f0abaa6 building syzkaller on 6972b10616d785401dea17cec890cca8916424a7 testing commit 894d6f401b21865962aba776ecaa918b2f0abaa6 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 01a3b2679f78e01f0f85d26fb9cb96d01204e95ed117074ef89dbd77000e00e9 run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: failed to write control pipe: write |NUM: broken pipe run #1: crashed: WARNING in cxacru_cm/usb_submit_urb run #2: crashed: WARNING in cxacru_cm/usb_submit_urb run #3: crashed: WARNING in cxacru_cm/usb_submit_urb run #4: crashed: WARNING in cxacru_cm/usb_submit_urb run #5: crashed: WARNING in cxacru_cm/usb_submit_urb run #6: crashed: WARNING in cxacru_cm/usb_submit_urb run #7: crashed: WARNING in cxacru_cm/usb_submit_urb run #8: crashed: WARNING in cxacru_cm/usb_submit_urb run #9: crashed: WARNING in cxacru_cm/usb_submit_urb run #10: crashed: WARNING in cxacru_cm/usb_submit_urb run #11: crashed: WARNING in cxacru_cm/usb_submit_urb run #12: crashed: WARNING in cxacru_cm/usb_submit_urb run #13: crashed: WARNING in cxacru_cm/usb_submit_urb run #14: crashed: WARNING in cxacru_cm/usb_submit_urb run #15: crashed: WARNING in cxacru_cm/usb_submit_urb run #16: crashed: WARNING in cxacru_cm/usb_submit_urb run #17: crashed: WARNING in corrupted/usb_submit_urb run #18: crashed: WARNING in cxacru_cm/usb_submit_urb run #19: crashed: WARNING in cxacru_cm/usb_submit_urb testing current HEAD dcde98da997075053041942ecf97d787855722ec testing commit dcde98da997075053041942ecf97d787855722ec compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4778e0c69407b2bea511482fbd71d9b9d6535d133c29e776490299c242723154 all runs: crashed: WARNING in cxacru_cm/usb_submit_urb revisions tested: 2, total time: 19m38.491153438s (build: 12m51.252463515s, test: 6m11.849957158s) the crash still happens on HEAD commit msg: Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input crash: WARNING in cxacru_cm/usb_submit_urb ------------[ cut here ]------------ usb 3-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 1 PID: 3970 at drivers/usb/core/urb.c:502 usb_submit_urb+0xb07/0x1680 drivers/usb/core/urb.c:502 Modules linked in: CPU: 1 PID: 3970 Comm: kworker/1:5 Not tainted 5.17.0-rc6-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+0xb07/0x1680 drivers/usb/core/urb.c:502 Code: 4c 24 18 89 4c 24 08 44 89 04 24 e8 43 18 1e ff 44 8b 04 24 4c 89 e2 48 c7 c7 20 6e 83 89 8b 4c 24 08 48 89 c6 e8 e4 ef 47 03 <0f> 0b 4c 8b 4c 24 18 e9 c0 fa ff ff 48 8d 7b 1c 48 ba 00 00 00 00 RSP: 0018:ffffc90002856e98 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88806e0c7000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff8941bf60 RDI: fffff5200050adc5 RBP: ffff88801dfe0000 R08: 0000000000000001 R09: ffff8880b9f34187 R10: ffffed10173e6830 R11: 0000000000000001 R12: ffff88806e0c5dc0 R13: 0000000000000002 R14: 0000000000000002 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c326a1f300 CR3: 000000007e685000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: cxacru_cm+0x37c/0x780 drivers/usb/atm/cxacru.c:649 cxacru_card_status+0x1c/0xc0 drivers/usb/atm/cxacru.c:760 cxacru_bind+0x728/0x1260 drivers/usb/atm/cxacru.c:1209 usbatm_usb_probe+0x2c4/0x19e0 drivers/usb/atm/usbatm.c:1057 cxacru_usb_probe+0xc3/0x1c0 drivers/usb/atm/cxacru.c:1363 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x1c2/0xb60 drivers/base/dd.c:596 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:755 driver_probe_device+0x44/0x110 drivers/base/dd.c:785 __device_attach_driver+0x185/0x250 drivers/base/dd.c:902 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427 __device_attach+0x1db/0x410 drivers/base/dd.c:973 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487 device_add+0x9ca/0x1b10 drivers/base/core.c:3405 usb_set_configuration+0xc91/0x1840 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238 usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x1c2/0xb60 drivers/base/dd.c:596 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:755 driver_probe_device+0x44/0x110 drivers/base/dd.c:785 __device_attach_driver+0x185/0x250 drivers/base/dd.c:902 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427 __device_attach+0x1db/0x410 drivers/base/dd.c:973 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487 device_add+0x9ca/0x1b10 drivers/base/core.c:3405 usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2566 hub_port_connect drivers/usb/core/hub.c:5358 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5660 [inline] hub_event+0x1ba2/0x3930 drivers/usb/core/hub.c:5742 process_one_work+0x879/0x1410 kernel/workqueue.c:2307 worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454 kthread+0x299/0x340 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295