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* [syzbot] [media?] WARNING in igorplugusb_probe/usb_submit_urb
@ 2026-03-19  7:20 syzbot
  0 siblings, 0 replies; only message in thread
From: syzbot @ 2026-03-19  7:20 UTC (permalink / raw)
  To: linux-kernel, linux-media, mchehab, sean, syzkaller-bugs

Hello,

syzbot found the following issue on:

HEAD commit:    8e42d2514a7e Add linux-next specific files for 20260318
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=158d4cf6580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1da705b17f2649a3
dashboard link: https://syzkaller.appspot.com/bug?extid=5d7eece664082e0c5c1a
compiler:       Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=156aa06a580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10e3ee02580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/64c940773401/disk-8e42d251.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/aa7a94376665/vmlinux-8e42d251.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5a7ab603c859/bzImage-8e42d251.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5d7eece664082e0c5c1a@syzkaller.appspotmail.com

Registered IR keymap rc-empty
rc rc0: IgorPlug-USB IR Receiver as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0
input: IgorPlug-USB IR Receiver as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input5
------------[ cut here ]------------
usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType 40
WARNING: drivers/usb/core/urb.c:413 at usb_submit_urb+0x1053/0x18b0 drivers/usb/core/urb.c:411, CPU#0: kworker/0:1/10
Modules linked in:
CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0x1115/0x18b0 drivers/usb/core/urb.c:411
Code: 00 00 00 00 00 fc ff df 0f b6 44 05 00 84 c0 0f 85 91 05 00 00 45 0f b6 45 00 48 8b 7c 24 18 48 8b 74 24 10 4c 89 fa 44 89 f1 <67> 48 0f b9 3a 49 bf 00 00 00 00 00 fc ff df e9 c1 f2 ff ff 89 e9
RSP: 0018:ffffc900000f6d58 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880348cfa00 RCX: 0000000080000280
RDX: ffff8880226d5760 RSI: ffffffff8ca2a000 RDI: ffffffff90619150
RBP: 1ffff11006f01788 R08: 0000000000000040 R09: 1ffff9200001ed78
R10: dffffc0000000000 R11: fffff5200001ed79 R12: ffff888034663100
R13: ffff88803780bc40 R14: 0000000080000280 R15: ffff8880226d5760
FS:  0000000000000000(0000) GS:ffff888124de1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2acdbe9e80 CR3: 000000007fc82000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 igorplugusb_cmd drivers/media/rc/igorplugusb.c:127 [inline]
 igorplugusb_probe+0x812/0xc70 drivers/media/rc/igorplugusb.c:225
 usb_probe_interface+0x668/0xc90 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x267/0xaf0 drivers/base/dd.c:721
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:863
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:893
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:1021
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c5/0x450 drivers/base/dd.c:1093
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1148
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:613
 device_add+0x7b6/0xb70 drivers/base/core.c:3692
 usb_set_configuration+0x1a87/0x2110 drivers/usb/core/message.c:2266
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c4/0x3b0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x267/0xaf0 drivers/base/dd.c:721
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:863
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:893
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:1021
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c5/0x450 drivers/base/dd.c:1093
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1148
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:613
 device_add+0x7b6/0xb70 drivers/base/core.c:3692
 usb_new_device+0xa08/0x16f0 drivers/usb/core/hub.c:2695
 hub_port_connect drivers/usb/core/hub.c:5567 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x2a1c/0x4f30 drivers/usb/core/hub.c:5953
 process_one_work+0x9ab/0x1780 kernel/workqueue.c:3288
 process_scheduled_works kernel/workqueue.c:3379 [inline]
 worker_thread+0xba8/0x11e0 kernel/workqueue.c:3465
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 fc                	add    %bh,%ah
   6:	ff                   	lcall  (bad)
   7:	df 0f                	fisttps (%rdi)
   9:	b6 44                	mov    $0x44,%dh
   b:	05 00 84 c0 0f       	add    $0xfc08400,%eax
  10:	85 91 05 00 00 45    	test   %edx,0x45000005(%rcx)
  16:	0f b6 45 00          	movzbl 0x0(%rbp),%eax
  1a:	48 8b 7c 24 18       	mov    0x18(%rsp),%rdi
  1f:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
  24:	4c 89 fa             	mov    %r15,%rdx
  27:	44 89 f1             	mov    %r14d,%ecx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  36:	fc ff df
  39:	e9 c1 f2 ff ff       	jmp    0xfffff2ff
  3e:	89 e9                	mov    %ebp,%ecx


---
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