linux-kernel - Re: [syzbot] [media?] WARNING in iguanair_probe/usb_submit

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Message-ID: <673f740d.050a0220.3c9d61.0176.GAE@google.com>
Date: Thu, 21 Nov 2024 09:55:25 -0800
From: syzbot <syzbot+ffba8e636870dac0e0c0@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, linux-media@...r.kernel.org, 
	linux-usb@...r.kernel.org, mchehab@...nel.org, sean@...s.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [media?] WARNING in iguanair_probe/usb_submit_urb (2)

syzbot has found a reproducer for the following issue on:

HEAD commit:    43fb83c17ba2 Merge tag 'soc-arm-6.13' of git://git.kernel...
git tree:       upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=14515930580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=58b000b917043826
dashboard link: https://syzkaller.appspot.com/bug?extid=ffba8e636870dac0e0c0
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12515930580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11ca8ec0580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/de84c4bb2d99/disk-43fb83c1.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/5ef479f28791/vmlinux-43fb83c1.xz
kernel image: https://storage.googleapis.com/syzbot-assets/896a530ab113/bzImage-43fb83c1.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ffba8e636870dac0e0c0@...kaller.appspotmail.com

------------[ cut here ]------------
URB ffff88801dace300 submitted while active
WARNING: CPU: 0 PID: 3069 at drivers/usb/core/urb.c:379 usb_submit_urb+0x14da/0x1730 drivers/usb/core/urb.c:379
Modules linked in:
CPU: 0 UID: 0 PID: 3069 Comm: kworker/0:2 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0x14da/0x1730 drivers/usb/core/urb.c:379
Code: fd eb cb bb fe ff ff ff e9 c1 f3 ff ff e8 be bc b2 fa c6 05 50 c9 6d 09 01 90 48 c7 c7 c0 c9 2d 8c 48 89 de e8 77 64 73 fa 90 <0f> 0b 90 90 e9 b6 fe ff ff bb f8 ff ff ff e9 91 f3 ff ff 48 89 ef
RSP: 0018:ffffc9000bc1f038 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88801dace300 RCX: ffffffff814e8a49
RDX: ffff8880311a0000 RSI: ffffffff814e8a56 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801dace300
R13: ffff888028821030 R14: ffff8880288210a8 R15: ffff888022378000
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000005fdeb8 CR3: 000000000df7e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 iguanair_send drivers/media/rc/iguanair.c:193 [inline]
 iguanair_get_features drivers/media/rc/iguanair.c:218 [inline]
 iguanair_probe+0xe78/0x22a0 drivers/media/rc/iguanair.c:438
 usb_probe_interface+0x309/0x9d0 drivers/usb/core/driver.c:399
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x23e/0xa90 drivers/base/dd.c:658
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459
 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534
 device_add+0x114b/0x1a70 drivers/base/core.c:3672
 usb_set_configuration+0x10cb/0x1c50 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254
 usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x23e/0xa90 drivers/base/dd.c:658
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459
 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534
 device_add+0x114b/0x1a70 drivers/base/core.c:3672
 usb_new_device+0xd90/0x1a10 drivers/usb/core/hub.c:2651
 hub_port_connect drivers/usb/core/hub.c:5521 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x2d9a/0x4e10 drivers/usb/core/hub.c:5903
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>


---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.