Hello, syzbot found the following issue on: HEAD commit: acd3d285 Merge tag 'fixes-v5.13' of git://git.kernel.org/p.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=123dd1e1d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=7aff3234c75583fe dashboard link: https://syzkaller.appspot.com/bug?extid=882a85c0c8ec4a3e2281 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+882a85c0c8ec4a3e2281@xxxxxxxxxxxxxxxxxxxxxxxxx usb usb9: usbfs: process 9672 (syz-executor.4) did not claim interface 0 before use ------------[ cut here ]------------ WARNING: CPU: 0 PID: 9672 at mm/page_alloc.c:4985 __alloc_pages_nodemask+0x5fd/0x730 mm/page_alloc.c:5020 Modules linked in: CPU: 0 PID: 9672 Comm: syz-executor.4 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__alloc_pages_nodemask+0x5fd/0x730 mm/page_alloc.c:4985 Code: 00 00 0c 00 0f 85 a7 00 00 00 8b 3c 24 4c 89 f2 44 89 e6 c6 44 24 70 00 48 89 6c 24 58 e8 9b d7 ff ff 49 89 c5 e9 e5 fc ff ff <0f> 0b e9 b0 fd ff ff 89 74 24 14 4c 89 4c 24 08 4c 89 74 24 18 e8 RSP: 0018:ffffc90007cdfa30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff92000f9bf4a RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000040cc0 RBP: 0000000000040cc0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81b490c1 R11: 0000000000000000 R12: 000000000000000b R13: 000000000000000b R14: 0000000000000000 R15: 0000000000554e47 FS: 00007fbaa62ba700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005400 CR3: 00000000768f1000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: alloc_pages_current+0x18c/0x2a0 mm/mempolicy.c:2277 alloc_pages include/linux/gfp.h:561 [inline] kmalloc_order+0x34/0xf0 mm/slab_common.c:902 kmalloc_order_trace+0x14/0x130 mm/slab_common.c:918 kmalloc include/linux/slab.h:559 [inline] do_proc_bulk+0x2d4/0x750 drivers/usb/core/devio.c:1221 proc_bulk drivers/usb/core/devio.c:1268 [inline] usbdev_do_ioctl drivers/usb/core/devio.c:2542 [inline] usbdev_ioctl+0x586/0x36c0 drivers/usb/core/devio.c:2708 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbaa62ba188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000020000240 RSI: 00000000c0185502 RDI: 0000000000000003 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 0000000000a9fb1f R14: 00007fbaa62ba300 R15: 0000000000022000 --- 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.