Hello, syzbot found the following issue on: HEAD commit: d665ea6e Merge tag 'for-linus-5.13-rc1' of git://git.kerne.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=10ae6ff5d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=f635d6ce17da8a68 dashboard link: https://syzkaller.appspot.com/bug?extid=95afd23673f5dd295c57 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14a35733d00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1621d7b9d00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+95afd23673f5dd295c57@xxxxxxxxxxxxxxxxxxxxxxxxx usb 1-1: New USB device found, idVendor=045e, idProduct=0927, bcdDevice=89.4f usb 1-1: New USB device strings: Mfr=0, Product=4, SerialNumber=0 usb 1-1: Product: syz usb 1-1: config 0 descriptor?? ------------[ cut here ]------------ WARNING: CPU: 1 PID: 32 at drivers/net/usb/r8152.c:8138 rtl_vendor_mode drivers/net/usb/r8152.c:8138 [inline] WARNING: CPU: 1 PID: 32 at drivers/net/usb/r8152.c:8138 rtl8152_probe+0x248/0x3050 drivers/net/usb/r8152.c:9381 Modules linked in: CPU: 1 PID: 32 Comm: kworker/1:1 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:rtl_vendor_mode drivers/net/usb/r8152.c:8138 [inline] RIP: 0010:rtl8152_probe+0x248/0x3050 drivers/net/usb/r8152.c:9381 Code: c3 a8 02 00 00 89 ee e8 26 bf c5 fd 41 39 ed 0f 85 40 ff ff ff e8 58 b9 c5 fd 44 89 ee 44 89 ef e8 0d bf c5 fd e8 48 b9 c5 fd <0f> 0b 41 bc ed ff ff ff e8 3b b9 c5 fd 44 89 e0 48 83 c4 40 5b 5d RSP: 0018:ffffc900001a7178 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8881191ceaa8 RCX: 0000000000000000 RDX: ffff888107fe8000 RSI: ffffffff837b33c8 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000002 R10: ffffffff837b33c3 R11: 00000000ffffffff R12: dffffc0000000000 R13: 0000000000000001 R14: ffff8881191660a8 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004b30f0 CR3: 000000010a0c8000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396 really_probe+0x291/0xf60 drivers/base/dd.c:576 driver_probe_device+0x298/0x410 drivers/base/dd.c:763 __device_attach_driver+0x203/0x2c0 drivers/base/dd.c:870 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x228/0x4b0 drivers/base/dd.c:938 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xbe0/0x2100 drivers/base/core.c:3319 usb_set_configuration+0x113f/0x1910 drivers/usb/core/message.c:2164 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293 really_probe+0x291/0xf60 drivers/base/dd.c:576 driver_probe_device+0x298/0x410 drivers/base/dd.c:763 __device_attach_driver+0x203/0x2c0 drivers/base/dd.c:870 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x228/0x4b0 drivers/base/dd.c:938 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xbe0/0x2100 drivers/base/core.c:3319 usb_new_device.cold+0x721/0x1058 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+0x2357/0x4320 drivers/usb/core/hub.c:5644 process_one_work+0x98d/0x1580 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x38c/0x460 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
