syzbot


WARNING in dib0700_i2c_xfer/usb_submit_urb

Status: upstream: reported C repro on 2025/03/24 18:18
Subsystems: usb
[Documentation on labels]
Reported-by: syzbot+c38e5e60d0041a99dbf5@syzkaller.appspotmail.com
First crash: 391d, last: 23h18m
Cause bisection: failed (error log, bisect log)
  
Discussions (6)
Title Replies (including bot) Last reply
[PATCH v3] media: dvb-usb-v2: disallow 0-length I2C reads 3 (3) 2025/06/09 10:38
[PATCH v2] media: dvb-usb-v2: disallow 0-length I2C reads 3 (3) 2025/05/21 10:22
[PATCH] media: dvb-usb-v2: disallow 0-length I2C reads 1 (1) 2025/05/20 11:35
[syzbot] [usb?] WARNING in gl861_ctrl_msg/usb_submit_urb 2 (4) 2025/05/19 20:17
[PATCH] media: dvb: usb: Fix WARNING in dib0700_i2c_xfer/usb_submit_urb 13 (13) 2025/03/29 14:31
[syzbot] [usb?] WARNING in dib0700_i2c_xfer/usb_submit_urb 5 (7) 2025/03/25 19:07
Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in dib0700_i2c_xfer/usb_submit_urb origin:upstream -1 C done 3 302d 308d 3/3 fixed on 2025/07/21 10:23
linux-6.1 WARNING in dib0700_i2c_xfer/usb_submit_urb (2) origin:upstream -1 C error 22 13d 214d 0/3 upstream: reported C repro on 2025/09/13 22:56
linux-5.15 WARNING in dib0700_i2c_xfer/usb_submit_urb origin:upstream -1 C 26 9d19h 252d 0/3 upstream: reported C repro on 2025/08/06 23:36
linux-6.6 WARNING in dib0700_i2c_xfer/usb_submit_urb origin:upstream -1 C inconclusive 20 29d 163d 0/2 upstream: reported C repro on 2025/11/03 10:21
Last patch testing requests (5)
Created Duration User Patch Repo Result
2025/04/04 18:32 23m retest repro upstream report log
2025/04/04 18:32 40m retest repro upstream report log
2025/04/04 18:32 22m retest repro upstream report log
2025/04/04 18:32 19m retest repro upstream report log
2025/03/25 17:47 1h19m stern@rowland.harvard.edu patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5fc319360819 OK 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#0: syz.0.17/5997
Modules linked in:
CPU: 0 UID: 0 PID: 5997 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:ffffc90003caf940 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8881443c9600 RCX: 0000000080000280
RDX: ffff8880207ef140 RSI: ffffffff8c140da0 RDI: ffffffff8f8ef3c0
RBP: 1ffff1100ed6f800 R08: 00000000000000c0 R09: 0000000000000000
R10: ffffc90003cafa40 R11: fffff52000795f54 R12: ffff888030ebe100
R13: ffff888076b7c000 R14: 0000000080000280 R15: ffff8880207ef140
FS:  000055557da88500(0000) GS:ffff888125e1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f064dd6b6b0 CR3: 0000000072424000 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
 dib0700_ctrl_rd drivers/media/usb/dvb-usb/dib0700_core.c:95 [inline]
 dib0700_i2c_xfer_legacy drivers/media/usb/dvb-usb/dib0700_core.c:315 [inline]
 dib0700_i2c_xfer+0xba7/0xf70 drivers/media/usb/dvb-usb/dib0700_core.c:361
 __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: 0033:0x7f9c8e18f749
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:00007fffa940b388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9c8e3e5fa0 RCX: 00007f9c8e18f749
RDX: 00002000000004c0 RSI: 0000000000000707 RDI: 0000000000000004
RBP: 00007f9c8e213f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9c8e3e5fa0 R14: 00007f9c8e3e5fa0 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 (582):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/18 03:43 upstream d3eeb99bbc99 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/03/21 08:08 upstream 5fc319360819 62330552 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/03/21 05:48 upstream 5fc319360819 62330552 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/03/21 03:36 upstream 5fc319360819 62330552 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/03/21 01:15 upstream 5fc319360819 62330552 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/02/02 13:26 linux-next 4c87cdd03284 018ebef2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/11/06 19:17 linux-next df5d79720b15 4e1406b4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/11/06 18:30 linux-next df5d79720b15 4e1406b4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/09/27 15:07 linux-next 262858079afd 001c9061 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/09/16 23:58 linux-next 590b221ed425 e2beed91 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/08/09 09:37 linux-next b1549501188c 32a0e5ed .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/15 02:07 upstream 508fed679541 e2e976a8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/13 23:29 upstream 0f0013213293 1a086e7c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/13 22:11 upstream 0f0013213293 9530ccf9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/13 20:47 upstream 0f0013213293 9530ccf9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/12 23:58 upstream f5459048c38a 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/12 21:12 upstream f5459048c38a 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/12 16:15 upstream f5459048c38a 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/12 13:57 upstream f5459048c38a 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/12 03:24 upstream e753c16cb3dd 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/09 21:04 upstream 8b02520ec5f7 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/09 20:56 upstream 8b02520ec5f7 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/09 19:55 upstream 8b02520ec5f7 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/09 16:42 upstream 7f87a5ea75f0 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/09 15:25 upstream 7f87a5ea75f0 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/09 03:28 upstream 7f87a5ea75f0 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/08 23:05 upstream 7f87a5ea75f0 d9b7f621 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/08 01:23 upstream 3036cd0d3328 2c961e87 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/07 23:17 upstream 3036cd0d3328 2c961e87 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/07 01:20 upstream bfe62a454542 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/06 18:53 upstream 591cd656a1bf 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/06 03:14 upstream 1791c390149f 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/03 07:01 upstream d8a9a4b11a13 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/01 22:17 upstream 9147566d8016 0285fe54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/01 12:52 upstream dbf00d8d23b4 fb8b2c26 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/31 23:33 upstream d0c3bcd5b897 aeea1c72 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/29 13:17 upstream cbfffcca2bf0 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/29 07:02 upstream cbfffcca2bf0 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/29 00:11 upstream be762d8b6dd7 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/27 00:36 upstream 0138af2472df fca8d360 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/26 04:46 upstream d2a43e7f89da c6143aac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/25 07:10 upstream e3c33bc767b5 35e4ff71 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/23 23:10 upstream c369299895a5 5e3db351 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/23 21:19 upstream c369299895a5 5e3db351 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/21 13:55 upstream a0c83177734a 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/11 13:58 upstream e774d5f1bc27 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/10 14:51 upstream 9a9c8ce300cd 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/09 22:34 upstream 8b02520ec5f7 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/05 22:51 upstream 1791c390149f 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/05 07:42 upstream 3aae9383f42f 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/01 04:42 upstream dbf00d8d23b4 fb8b2c26 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/24 10:20 upstream c369299895a5 baf8bf12 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/23 18:05 upstream c369299895a5 5e3db351 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/03/23 15:29 upstream c369299895a5 5e3db351 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/11 04:19 linux-next cc13002a9f98 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/07 03:18 linux-next cc13002a9f98 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/06 11:41 linux-next cc13002a9f98 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/05 21:18 linux-next cc13002a9f98 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in dib0700_i2c_xfer/usb_submit_urb
2026/04/04 01:32 linux-next cc13002a9f98 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dib0700_i2c_xfer/usb_submit_urb
* Struck through repros no longer work on HEAD.