syzbot has found a reproducer for the following issue on: HEAD commit: dd5a440a31fa Linux 6.9-rc7 git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=1792e8a7180000 kernel config: https://syzkaller.appspot.com/x/.config?x=6d14c12b661fb43 dashboard link: https://syzkaller.appspot.com/bug?extid=ac0f9c4cc1e034160492 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10b7d354980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/58e2a4900479/disk-dd5a440a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/246a109c32d6/vmlinux-dd5a440a.xz kernel image: https://storage.googleapis.com/syzbot-assets/d2719f7eb672/bzImage-dd5a440a.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ac0f9c4cc1e034160492@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ URB ffff8880293d7f00 submitted while active WARNING: CPU: 0 PID: 1141 at drivers/usb/core/urb.c:379 usb_submit_urb+0x1039/0x18c0 drivers/usb/core/urb.c:379 Modules linked in: CPU: 0 PID: 1141 Comm: kworker/0:2 Not tainted 6.9.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_submit_urb+0x1039/0x18c0 drivers/usb/core/urb.c:379 Code: 00 eb 66 e8 59 f2 7c fa e9 79 f0 ff ff e8 4f f2 7c fa c6 05 8f 7e 7a 08 01 90 48 c7 c7 a0 74 6c 8c 4c 89 ee e8 58 64 3f fa 90 <0f> 0b 90 90 e9 40 f0 ff ff e8 29 f2 7c fa eb 12 e8 22 f2 7c fa 41 RSP: 0018:ffffc90004926b48 EFLAGS: 00010246 RAX: 12b779fa952e9100 RBX: 0000000000000cc0 RCX: ffff8880229e8000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff8880293d7f08 R08: ffffffff81587d32 R09: 1ffffffff25e6abf R10: dffffc0000000000 R11: fffffbfff25e6ac0 R12: 1ffff11005d6920a R13: ffff8880293d7f00 R14: dffffc0000000000 R15: ffff88802eb49010 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555b1af938 CR3: 000000007c014000 CR4: 0000000000350ef0 Call Trace: <TASK> cm109_input_open+0x1f9/0x470 drivers/input/misc/cm109.c:572 input_open_device+0x193/0x2e0 drivers/input/input.c:654 kbd_connect+0xe9/0x130 drivers/tty/vt/keyboard.c:1593 input_attach_handler drivers/input/input.c:1064 [inline] input_register_device+0xcfc/0x1090 drivers/input/input.c:2396 cm109_usb_probe+0x10cd/0x1600 drivers/input/misc/cm109.c:806 usb_probe_interface+0x647/0xbb0 drivers/usb/core/driver.c:399 really_probe+0x2ba/0xad0 drivers/base/dd.c:656 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798 driver_probe_device+0x50/0x430 drivers/base/dd.c:828 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:956 bus_for_each_drv+0x250/0x2e0 drivers/base/bus.c:457 __device_attach+0x333/0x520 drivers/base/dd.c:1028 bus_probe_device+0x189/0x260 drivers/base/bus.c:532 device_add+0x8ff/0xca0 drivers/base/core.c:3720 usb_set_configuration+0x1976/0x1fb0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x88/0x140 drivers/usb/core/generic.c:254 usb_probe_device+0x1ba/0x380 drivers/usb/core/driver.c:294 really_probe+0x2ba/0xad0 drivers/base/dd.c:656 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798 driver_probe_device+0x50/0x430 drivers/base/dd.c:828 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:956 bus_for_each_drv+0x250/0x2e0 drivers/base/bus.c:457 __device_attach+0x333/0x520 drivers/base/dd.c:1028 bus_probe_device+0x189/0x260 drivers/base/bus.c:532 device_add+0x8ff/0xca0 drivers/base/core.c:3720 usb_new_device+0x104a/0x19a0 drivers/usb/core/hub.c:2652 hub_port_connect drivers/usb/core/hub.c:5522 [inline] hub_port_connect_change drivers/usb/core/hub.c:5662 [inline] port_event drivers/usb/core/hub.c:5822 [inline] hub_event+0x2d6a/0x5150 drivers/usb/core/hub.c:5904 process_one_work kernel/workqueue.c:3267 [inline] process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3348 worker_thread+0x86d/0xd70 kernel/workqueue.c:3429 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.
