Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in usbnet_start_xmit/usb_submit_urb ------------[ cut here ]------------ usb 4-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 710 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502 Modules linked in: CPU: 0 PID: 710 Comm: kworker/0:2 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: mld mld_ifc_work RIP: 0010:usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502 Code: 7c 24 18 e8 a0 32 aa fd 48 8b 7c 24 18 e8 26 2b 1a ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 80 c1 85 86 e8 45 5e 03 02 <0f> 0b e9 58 f8 ff ff e8 72 32 aa fd 48 81 c5 80 06 00 00 e9 84 f7 RSP: 0018:ffffc90001da7580 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88810d383800 RSI: ffffffff812bae18 RDI: fffff520003b4ea2 RBP: ffff888114c89800 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff812b4bfe R11: 0000000000000000 R12: 0000000000000003 R13: ffff8881045d2370 R14: 0000000000000003 R15: ffff888122f7c600 FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3d0eb50ff8 CR3: 0000000117af8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> usbnet_start_xmit+0x5ed/0x1f70 drivers/net/usb/usbnet.c:1464 __netdev_start_xmit include/linux/netdevice.h:4987 [inline] netdev_start_xmit include/linux/netdevice.h:5001 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3606 sch_direct_xmit+0x25b/0x790 net/sched/sch_generic.c:342 __dev_xmit_skb net/core/dev.c:3817 [inline] __dev_queue_xmit+0x11bf/0x31d0 net/core/dev.c:4194 neigh_resolve_output net/core/neighbour.c:1523 [inline] neigh_resolve_output+0x50e/0x820 net/core/neighbour.c:1503 neigh_output include/net/neighbour.h:527 [inline] ip6_finish_output2+0xb49/0x1af0 net/ipv6/ip6_output.c:126 __ip6_finish_output.part.0+0x387/0xbb0 net/ipv6/ip6_output.c:191 __ip6_finish_output include/linux/skbuff.h:986 [inline] ip6_finish_output net/ipv6/ip6_output.c:201 [inline] NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x3d2/0x810 net/ipv6/ip6_output.c:224 dst_output include/net/dst.h:450 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] mld_sendpack+0x96d/0xe00 net/ipv6/mcast.c:1826 mld_send_cr net/ipv6/mcast.c:2127 [inline] mld_ifc_work+0x71c/0xdc0 net/ipv6/mcast.c:2659 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445 kthread+0x40b/0x500 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> Tested on: commit: 048ff862 Merge tag 'usb-5.16-rc1' of git://git.kernel... git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git console output: https://syzkaller.appspot.com/x/log.txt?x=1105444eb00000 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 patch: https://syzkaller.appspot.com/x/patch.diff?x=1004939eb00000
