syzbot


WARNING in ADDR_ctrl_msg/usb_submit_urb

Status: upstream: reported C repro on 2025/12/05 01:02
Subsystems: usb
[Documentation on labels]
Reported-by: syzbot+427909a2e3b2f83d78cb@syzkaller.appspotmail.com
First crash: 59d, last: 3d16h
Cause bisection: failed (error log, bisect log)
  
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [usb?] WARNING in ADDR_ctrl_msg/usb_submit_urb 0 (2) 2026/01/04 19:19
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in ADDR_ctrl_msg/usb_submit_urb origin:upstream -1 C 6 25d 58d 0/3 upstream: reported C repro on 2025/12/02 07:54
Last patch testing requests (2)
Created Duration User Patch Repo Result
2026/01/25 20:22 19m retest repro linux-next error
2026/01/25 20:22 25m retest repro linux-next report log

Sample crash report:
------------[ cut here ]------------
usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0
WARNING: drivers/usb/core/urb.c:414 at usb_submit_urb+0x105c/0x18d0 drivers/usb/core/urb.c:412, CPU#1: syz.0.17/5993
Modules linked in:
CPU: 1 UID: 0 PID: 5993 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:usb_submit_urb+0x111c/0x18d0 drivers/usb/core/urb.c:412
Code: b8 00 00 00 00 00 fc ff df 0f b6 44 05 00 84 c0 0f 85 a7 05 00 00 45 0f b6 45 00 48 8b 3c 24 48 8b 74 24 20 4c 89 fa 44 89 f1 <67> 48 0f b9 3a 49 bf 00 00 00 00 00 fc ff df e9 b7 f2 ff ff 89 e9
RSP: 0018:ffffc900037e7880 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888074e1ec00 RCX: 0000000080000280
RDX: ffff888028747200 RSI: ffffffff8c362ee0 RDI: ffffffff8fd0ae50
RBP: 1ffff1100525bca8 R08: 00000000000000c0 R09: 0000000000000000
R10: ffffc900037e7980 R11: fffff520006fcf3c R12: ffff888020bd0100
R13: ffff8880292de540 R14: 0000000080000280 R15: ffff888028747200
FS:  000055555c4d5500(0000) GS:ffff888125ac1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd9ccfb950 CR3: 0000000030294000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 usb_start_wait_urb+0x115/0x4f0 drivers/usb/core/message.c:59
 usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
 usb_control_msg+0x232/0x3e0 drivers/usb/core/message.c:154
 ce6230_ctrl_msg+0x2b1/0x660 drivers/media/usb/dvb-usb-v2/ce6230.c:61
 ce6230_i2c_master_xfer+0x4ce/0x6d0 drivers/media/usb/dvb-usb-v2/ce6230.c:113
 __i2c_transfer+0x79a/0x1f00 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x1cc/0x2d0 drivers/i2c/i2c-core-base.c:2317
 i2cdev_ioctl_rdwr+0x460/0x740 drivers/i2c/i2c-dev.c:306
 i2cdev_ioctl+0x64b/0x820 drivers/i2c/i2c-dev.c:467
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa739b8f749
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffd18124a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa739de5fa0 RCX: 00007fa739b8f749
RDX: 0000200000000a40 RSI: 0000000000000707 RDI: 0000000000000004
RBP: 00007fa739c13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa739de5fa0 R14: 00007fa739de5fa0 R15: 0000000000000003
 </TASK>
----------------
Code disassembly (best guess):
   0:	b8 00 00 00 00       	mov    $0x0,%eax
   5:	00 fc                	add    %bh,%ah
   7:	ff                   	(bad)
   8:	df 0f                	fisttps (%rdi)
   a:	b6 44                	mov    $0x44,%dh
   c:	05 00 84 c0 0f       	add    $0xfc08400,%eax
  11:	85 a7 05 00 00 45    	test   %esp,0x45000005(%rdi)
  17:	0f b6 45 00          	movzbl 0x0(%rbp),%eax
  1b:	48 8b 3c 24          	mov    (%rsp),%rdi
  1f:	48 8b 74 24 20       	mov    0x20(%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 b7 f2 ff ff       	jmp    0xfffff2f5
  3e:	89 e9                	mov    %ebp,%ecx

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/06 08:33 linux-next 6cd6c1203113 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in ADDR_ctrl_msg/usb_submit_urb
2026/01/04 19:18 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ADDR_ctrl_msg/usb_submit_urb
2026/01/11 20:21 upstream 755bc1335e3b d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ADDR_ctrl_msg/usb_submit_urb
2025/12/01 00:54 upstream e69c7c175115 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ADDR_ctrl_msg/usb_submit_urb
2026/01/04 18:20 linux-next cc3aa43b44bd d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ADDR_ctrl_msg/usb_submit_urb
* Struck through repros no longer work on HEAD.