linux-kernel - Re: [syzbot] [media?] [usb?] WARNING in smsusb_start

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Message-ID: <00000000000038353d05fff0390d@google.com>
Date:   Fri, 07 Jul 2023 19:08:20 -0700
From:   syzbot <syzbot+a7c205f9c1168e2f1dcc@...kaller.appspotmail.com>
To:     hdanton@...a.com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [media?] [usb?] WARNING in smsusb_start_streaming

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
WARNING in smsusb_term_device

smsusb:smsusb_probe: board id=7, interface number 55
smsusb:smsusb_probe: board id=7, interface number 147
smsusb:smsusb_probe: board id=7, interface number 0
smsusb:siano_media_device_register: media controller created
smsusb:smsusb_start_streaming: smsusb_submit_urb(...) failed
smsusb:smsusb_init_device: smsusb_start_streaming(...) failed
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2029 at kernel/workqueue.c:3379 __flush_work+0x946/0xb60 kernel/workqueue.c:3379
Modules linked in:
CPU: 0 PID: 2029 Comm: kworker/0:3 Not tainted 6.4.0-syzkaller-11478-gd528014517f2-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: usb_hub_wq hub_event
RIP: 0010:__flush_work+0x946/0xb60 kernel/workqueue.c:3379
Code: 00 48 c7 c6 2b 36 54 81 48 c7 c7 00 27 9a 8c e8 c0 09 12 00 e9 6f fc ff ff e8 16 a9 30 00 0f 0b e9 63 fc ff ff e8 0a a9 30 00 <0f> 0b 45 31 ed e9 54 fc ff ff e8 6b d8 83 00 e9 3e fb ff ff e8 f1
RSP: 0018:ffffc9000797ec08 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88801b5d20e8 RCX: 0000000000000000
RDX: ffff888024503b80 RSI: ffffffff81543666 RDI: 0000000000000001
RBP: ffffc9000797eda0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000005 R12: ffff88801b5d20e8
R13: 0000000000000001 R14: 0000000000000001 R15: ffff88801b5d2100
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff765634a8 CR3: 0000000018f20000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3473
 __smsusb_stop_streaming drivers/media/usb/siano/smsusb.c:182 [inline]
 smsusb_stop_streaming drivers/media/usb/siano/smsusb.c:193 [inline]
 smsusb_term_device+0xee/0x300 drivers/media/usb/siano/smsusb.c:349
 smsusb_init_device+0xadc/0xd20 drivers/media/usb/siano/smsusb.c:484
 smsusb_probe+0x5b9/0x10b0 drivers/media/usb/siano/smsusb.c:572
 usb_probe_interface+0x30f/0x960 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x240/0xca0 drivers/base/dd.c:658
 __driver_probe_device+0x1df/0x4b0 drivers/base/dd.c:798
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:828
 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:956
 bus_for_each_drv+0x149/0x1d0 drivers/base/bus.c:457
 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1028
 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532
 device_add+0x112d/0x1a40 drivers/base/core.c:3625
 usb_set_configuration+0x1196/0x1bc0 drivers/usb/core/message.c:2211
 usb_generic_driver_probe+0xcf/0x130 drivers/usb/core/generic.c:238
 usb_probe_device+0xd8/0x2c0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x240/0xca0 drivers/base/dd.c:658
 __driver_probe_device+0x1df/0x4b0 drivers/base/dd.c:798
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:828
 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:956
 bus_for_each_drv+0x149/0x1d0 drivers/base/bus.c:457
 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1028
 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532
 device_add+0x112d/0x1a40 drivers/base/core.c:3625
 usb_new_device+0xcb2/0x19d0 drivers/usb/core/hub.c:2590
 hub_port_connect drivers/usb/core/hub.c:5422 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5566 [inline]
 port_event drivers/usb/core/hub.c:5726 [inline]
 hub_event+0x2d9e/0x4e40 drivers/usb/core/hub.c:5808
 process_one_work+0xa34/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2748
 kthread+0x344/0x440 kernel/kthread.c:389
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>


Tested on:

commit:         d5280145 Revert ".gitignore: ignore *.cover and *.mbx"
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=1769c3aca80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d576750da57ebbb5
dashboard link: https://syzkaller.appspot.com/bug?extid=a7c205f9c1168e2f1dcc
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=169e9ca8a80000