ci starts bisection 2022-12-28 12:06:45.829790454 +0000 UTC m=+69956.372496019 bisecting fixing commit since dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0 building syzkaller on 214351e168def9426c79e1f65a93ddb112cee906 ensuring issue is reproducible on original commit dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0 testing commit dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4dd8d58b2ef05af7950bf56704d18755fdc5aec2c6bcf125ca2cf93fca7375aa run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM run #1: crashed: BUG: corrupted list in usb_hcd_link_urb_to_ep run #2: crashed: BUG: corrupted list in usb_hcd_link_urb_to_ep run #3: crashed: BUG: corrupted list in usb_hcd_link_urb_to_ep run #4: crashed: WARNING in cm109_input_open/usb_submit_urb run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK reproducer seems to be flaky testing current HEAD 1b929c02afd37871d5afb9d498426f83432e71c2 testing commit 1b929c02afd37871d5afb9d498426f83432e71c2 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: cabc5fdb19961e9a144f005a12b8a83cda4c16d7312e2bbcbf7c0a620a3ec832 run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM run #1: basic kernel testing failed: BUG: program execution failed: executor NUM: failed to write control pipe: write |NUM: broken pipe run #2: crashed: BUG: corrupted list in usb_hcd_link_urb_to_ep run #3: crashed: BUG: corrupted list in usb_hcd_link_urb_to_ep run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK Reproducer flagged being flaky revisions tested: 2, total time: 40m3.049076395s (build: 15m38.130612039s, test: 23m18.699475587s) the crash still happens on HEAD commit msg: Linux 6.2-rc1 crash: BUG: corrupted list in usb_hcd_link_urb_to_ep cm109 1-1:0.0: invalid payload size 0, expected 4 input: CM109 USB driver as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input1490 list_add double add: new=ffff88801e439b18, prev=ffff88801e439b18, next=ffff888066658070. ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:35! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9018 Comm: kworker/1:11 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: usb_hub_wq hub_event RIP: 0010:__list_add_valid+0xa7/0x100 lib/list_debug.c:33 Code: 12 b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 b0 01 84 c0 74 ee 48 c7 c7 40 36 09 8a 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 99 68 89 05 <0f> 0b 48 c7 c7 40 34 09 8a 31 c0 e8 89 68 89 05 0f 0b 48 c7 c7 e0 RSP: 0018:ffffc9000437e7b8 EFLAGS: 00010046 RAX: 0000000000000058 RBX: ffff888066658078 RCX: 18fc75ed38a62e00 RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001 RBP: ffff888066658070 R08: dffffc0000000000 R09: ffffed10173a4f5b R10: ffffed10173a4f5b R11: 1ffff110173a4f5a R12: ffff88801e439b18 R13: dffffc0000000000 R14: ffff888066658070 R15: ffff88801e439b18 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd4b869950 CR3: 000000002427f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:69 [inline] list_add_tail include/linux/list.h:102 [inline] usb_hcd_link_urb_to_ep+0x173/0x2c0 drivers/usb/core/hcd.c:1181 dummy_urb_enqueue+0x253/0x680 drivers/usb/gadget/udc/dummy_hcd.c:1285 usb_hcd_submit_urb+0x237/0x480 drivers/usb/core/hcd.c:1556 cm109_input_open+0x1d8/0x430 drivers/input/misc/cm109.c:572 input_open_device+0x12f/0x280 drivers/input/input.c:651 kbd_connect+0xcd/0x100 drivers/tty/vt/keyboard.c:1593 input_attach_handler drivers/input/input.c:1061 [inline] input_register_device+0xabf/0xe00 drivers/input/input.c:2397 cm109_usb_probe+0x1080/0x1540 drivers/input/misc/cm109.c:806 usb_probe_interface+0x4db/0x970 drivers/usb/core/driver.c:396 call_driver_probe+0x85/0x1e0 really_probe+0x1cc/0x830 drivers/base/dd.c:639 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:778 driver_probe_device+0x4b/0x1e0 drivers/base/dd.c:808 __device_attach_driver+0x1c7/0x2c0 drivers/base/dd.c:936 bus_for_each_drv+0x15d/0x1c0 drivers/base/bus.c:427 __device_attach+0x2d6/0x4e0 drivers/base/dd.c:1008 bus_probe_device+0x81/0x190 drivers/base/bus.c:487 device_add+0x7dc/0xd50 drivers/base/core.c:3479 usb_set_configuration+0x1802/0x1e10 drivers/usb/core/message.c:2171 usb_generic_driver_probe+0x5f/0xf0 drivers/usb/core/generic.c:238 usb_probe_device+0xc7/0x1e0 drivers/usb/core/driver.c:293 call_driver_probe+0x85/0x1e0 really_probe+0x1cc/0x830 drivers/base/dd.c:639 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:778 driver_probe_device+0x4b/0x1e0 drivers/base/dd.c:808 __device_attach_driver+0x1c7/0x2c0 drivers/base/dd.c:936 bus_for_each_drv+0x15d/0x1c0 drivers/base/bus.c:427 __device_attach+0x2d6/0x4e0 drivers/base/dd.c:1008 bus_probe_device+0x81/0x190 drivers/base/bus.c:487 device_add+0x7dc/0xd50 drivers/base/core.c:3479 usb_new_device+0xbdb/0x17f0 drivers/usb/core/hub.c:2573 hub_port_connect+0xdeb/0x1e40 drivers/usb/core/hub.c:5405 hub_port_connect_change+0x517/0xa40 drivers/usb/core/hub.c:5549 port_event+0xc27/0x1180 drivers/usb/core/hub.c:5709 hub_event+0x462/0xb70 drivers/usb/core/hub.c:5791 process_one_work+0x794/0xc10 kernel/workqueue.c:2289 worker_thread+0x8ff/0xfe0 kernel/workqueue.c:2436 kthread+0x228/0x2a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid+0xa7/0x100 lib/list_debug.c:33 Code: 12 b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 b0 01 84 c0 74 ee 48 c7 c7 40 36 09 8a 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 99 68 89 05 <0f> 0b 48 c7 c7 40 34 09 8a 31 c0 e8 89 68 89 05 0f 0b 48 c7 c7 e0 RSP: 0018:ffffc9000437e7b8 EFLAGS: 00010046 RAX: 0000000000000058 RBX: ffff888066658078 RCX: 18fc75ed38a62e00 RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001 RBP: ffff888066658070 R08: dffffc0000000000 R09: ffffed10173a4f5b R10: ffffed10173a4f5b R11: 1ffff110173a4f5a R12: ffff88801e439b18 R13: dffffc0000000000 R14: ffff888066658070 R15: ffff88801e439b18 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd4b869950 CR3: 000000002427f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400