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Wed, 02 Jun 2021 16:30:18 -0700 (PDT) Date: Wed, 02 Jun 2021 16:30:18 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000075c23d05c3d0d730@google.com> Subject: [syzbot] WARNING in usb_new_device/usb_submit_urb From: syzbot To: gregkh@linuxfoundation.org, johan@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, mathias.nyman@linux.intel.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 7652dd2c USB: core: Check buffer length matches wLength fo.. 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=1712b99dd00000 kernel config: https://syzkaller.appspot.com/x/.config?x=1206ee92dd3d988d dashboard link: https://syzkaller.appspot.com/bug?extid=7dbcd9ff34dc4ed45240 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16b82e13d00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16ac418dd00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7dbcd9ff34dc4ed45240@syzkaller.appspotmail.com usb 1-1: config 0 interface 186 altsetting 4 has a duplicate endpoint with address 0x8, skipping usb 1-1: config 0 interface 166 has no altsetting 0 usb 1-1: config 0 interface 186 has no altsetting 0 ------------[ cut here ]------------ usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType 80 WARNING: CPU: 1 PID: 2632 at drivers/usb/core/urb.c:410 usb_submit_urb+0x149d/0x18a0 drivers/usb/core/urb.c:410 Modules linked in: CPU: 1 PID: 2632 Comm: kworker/1:2 Not tainted 5.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_submit_urb+0x149d/0x18a0 drivers/usb/core/urb.c:410 Code: 7c 24 40 e8 c5 1f b3 fd 48 8b 7c 24 40 e8 6b a6 1b ff 45 89 e8 44 89 f1 4c 89 e2 48 89 c6 48 c7 c7 80 0a 63 86 e8 15 ec fb 01 <0f> 0b e9 a5 ee ff ff e8 97 1f b3 fd 0f b6 1d db a7 34 05 31 ff 41 RSP: 0018:ffffc90000207680 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8881182df058 RCX: 0000000000000000 RDX: ffff888114871b40 RSI: ffffffff812a6033 RDI: fffff52000040ec2 RBP: ffff88810cfffc80 R08: 0000000000000001 R09: 0000000000000000 R10: ffffffff814b998b R11: 0000000000000000 R12: ffff88810cfff6b8 R13: 0000000000000080 R14: 0000000080000280 R15: ffff88810e736f00 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f13a00114f0 CR3: 0000000108807000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: usb_start_wait_urb+0x101/0x4c0 drivers/usb/core/message.c:58 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153 usb_get_string+0xa6/0x190 drivers/usb/core/message.c:837 usb_string_sub+0x35e/0x3d0 drivers/usb/core/message.c:883 usb_get_langid drivers/usb/core/message.c:913 [inline] usb_string+0x1cc/0x540 drivers/usb/core/message.c:977 usb_cache_string+0x82/0x120 drivers/usb/core/message.c:1023 usb_enumerate_device drivers/usb/core/hub.c:2399 [inline] usb_new_device+0x15b/0x7d0 drivers/usb/core/hub.c:2527 hub_port_connect drivers/usb/core/hub.c:5298 [inline] hub_port_connect_change drivers/usb/core/hub.c:5438 [inline] port_event drivers/usb/core/hub.c:5584 [inline] hub_event+0x2357/0x4330 drivers/usb/core/hub.c:5666 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@googlegroups.com. 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