On 15.11.21 08:28, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 048ff8629e11 Merge tag 'usb-5.16-rc1' of git://git.kernel... > 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=1480ade1b00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=d6b387bc5d3e50f3 > dashboard link: https://syzkaller.appspot.com/bug?extid=63ee658b9a100ffadbe2 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1313cb7cb00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16a2f676b00000 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+63ee658b9a100ffadbe2@xxxxxxxxxxxxxxxxxxxxxxxxx > > ------------[ cut here ]------------ > usb 5-1: BOGUS urb xfer, pipe 3 != type 1 > WARNING: CPU: 0 PID: 1291 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502 Hi, here I understand what is happening, but not why it can happen. Usbnet checks the endpoint type. May I request an addition to syzbot? Could you include the output of "lsusb -v" at the time of the error condition for USB bugs? Regards Oliver
