syzbot


WARNING in dtv5100_i2c_xfer/usb_submit_urb

Status: upstream: reported C repro on 2025/06/15 13:59
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+525f33feb7d61d15e781@syzkaller.appspotmail.com
First crash: 294d, last: 3d17h
Fix bisection: failed (error log, bisect log)
  
Bug presence (1)
Date Name Commit Repro Result
2025/06/16 upstream (ToT) e04c78d86a96 C [report] WARNING in dtv5100_i2c_xfer/usb_submit_urb
Last patch testing requests (10)
Created Duration User Patch Repo Result
2026/03/13 06:13 11m retest repro linux-5.15.y error
2026/03/13 06:13 6m retest repro linux-5.15.y error
2026/02/09 08:12 12m retest repro linux-5.15.y report log
2026/02/09 08:12 12m retest repro linux-5.15.y report log
2026/02/09 08:12 13m retest repro linux-5.15.y report log
2026/02/09 08:12 10m retest repro linux-5.15.y report log
2026/01/02 04:21 15m retest repro linux-5.15.y report log
2026/01/02 04:21 9m retest repro linux-5.15.y report log
2025/11/20 04:02 9m retest repro linux-5.15.y report log
2025/11/20 04:02 14m retest repro linux-5.15.y report log

Sample crash report:
------------[ cut here ]------------
usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0
WARNING: CPU: 0 PID: 4308 at drivers/usb/core/urb.c:412 usb_submit_urb+0x11a5/0x1910 drivers/usb/core/urb.c:410
Modules linked in:
CPU: 0 PID: 4308 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:usb_submit_urb+0x11a5/0x1910 drivers/usb/core/urb.c:410
Code: fc ff df 0f b6 44 05 00 84 c0 0f 85 6c 06 00 00 45 0f b6 07 48 c7 c7 20 1a c5 8a 48 8b 34 24 4c 89 e2 44 89 f1 e8 9b 52 d3 03 <0f> 0b 49 bc 00 00 00 00 00 fc ff df e9 92 f3 ff ff 89 e9 80 e1 07
RSP: 0018:ffffc9000305f5a8 EFLAGS: 00010246
RAX: 36d455bb998eb800 RBX: ffff888077fee200 RCX: ffff888021209dc0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff110285ba5bd R08: ffff8880b9033d7f R09: 1ffff110172067af
R10: dffffc0000000000 R11: ffffed10172067b0 R12: ffff888144bde640
R13: ffff88807d5250f8 R14: 0000000080000280 R15: ffff888142dd2de8
FS:  0000555572e5c500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fce223a88c8 CR3: 000000002135a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 usb_start_wait_urb+0x128/0x4e0 drivers/usb/core/message.c:58
 usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
 usb_control_msg+0x22f/0x3e0 drivers/usb/core/message.c:153
 dtv5100_i2c_msg drivers/media/usb/dvb-usb/dtv5100.c:65 [inline]
 dtv5100_i2c_xfer+0x393/0x650 drivers/media/usb/dvb-usb/dtv5100.c:91
 __i2c_transfer+0x880/0x20b0 drivers/i2c/i2c-core-base.c:-1
 i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:469 [inline]
 __i2c_smbus_xfer+0x1015/0x1dc0 drivers/i2c/i2c-core-smbus.c:607
 i2c_smbus_xfer+0x272/0x3b0 drivers/i2c/i2c-core-smbus.c:545
 i2cdev_ioctl_smbus+0x1da/0x680 drivers/i2c/i2c-dev.c:348
 i2cdev_ioctl+0x583/0x7b0 drivers/i2c/i2c-dev.c:467
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa5edf7a799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffee8779c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa5ee1f3fa0 RCX: 00007fa5edf7a799
RDX: 00002000000000c0 RSI: 0000000000000720 RDI: 0000000000000004
RBP: 00007fa5ee010c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa5ee1f3fac R14: 00007fa5ee1f3fa0 R15: 00007fa5ee1f3fa0
 </TASK>

Crashes (20):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/26 21:04 linux-5.15.y 91d48252ad4b 766b6434 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/12/16 06:11 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/06/16 06:48 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/06/16 03:56 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/06/16 00:54 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/06/15 22:01 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/06/15 17:36 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2026/04/02 19:23 linux-5.15.y 91d48252ad4b 91bc79b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2026/03/26 14:03 linux-5.15.y 91d48252ad4b 766b6434 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2026/03/19 10:40 linux-5.15.y 91d48252ad4b 0199f9a1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2026/03/19 10:39 linux-5.15.y 91d48252ad4b 0199f9a1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2026/02/21 23:30 linux-5.15.y 3330a8d33e08 6e7b5511 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2026/02/21 23:28 linux-5.15.y 3330a8d33e08 6e7b5511 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2026/01/26 05:39 linux-5.15.y 9eec9a14ee10 55756628 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2026/01/03 22:00 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/12/16 03:42 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/11/21 18:41 linux-5.15.y cc5ec8769306 280ea308 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/08/15 22:28 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/08/07 12:21 linux-5.15.y c79648372d02 04cffc22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
2025/06/15 13:59 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dtv5100_i2c_xfer/usb_submit_urb
* Struck through repros no longer work on HEAD.