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: 226d, last: 1d10h
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
2026/01/02 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
2025/11/20 04:02 15m retest repro linux-5.15.y report log
2025/11/20 04:02 9m retest repro linux-5.15.y report log
2025/10/12 09:13 11m retest repro linux-5.15.y report log
2025/09/10 19:50 9m retest repro linux-5.15.y report log
2025/09/10 19:50 30m retest repro linux-5.15.y report log
2025/09/10 19:50 25m 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: 1 PID: 4321 at drivers/usb/core/urb.c:412 usb_submit_urb+0x119f/0x1900 drivers/usb/core/urb.c:410
Modules linked in:
CPU: 1 PID: 4321 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:usb_submit_urb+0x119f/0x1900 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 80 ca a4 8a 48 8b 34 24 4c 89 e2 44 89 f1 e8 01 59 c8 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:ffffc900030ef868 EFLAGS: 00010246
RAX: 207bec382468cb00 RBX: ffff888074177100 RCX: ffff8880291dbb80
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff110283310fa R08: dffffc0000000000 R09: fffff5200061de71
R10: fffff5200061de71 R11: 1ffff9200061de70 R12: ffff888143be7280
R13: ffff88807e0060f8 R14: 0000000080000280 R15: ffff8881419887d0
FS:  0000555561b2f500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8146a768c8 CR3: 000000001d56b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 usb_start_wait_urb+0x111/0x4b0 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:60 [inline]
 dtv5100_i2c_xfer+0x393/0x650 drivers/media/usb/dvb-usb/dtv5100.c:86
 __i2c_transfer+0x864/0x2060 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x24c/0x390 drivers/i2c/i2c-core-base.c:2330
 i2cdev_ioctl_rdwr+0x3da/0x6c0 drivers/i2c/i2c-dev.c:297
 i2cdev_ioctl+0x5ba/0x750 drivers/i2c/i2c-dev.c:458
 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: 0033:0x7f2f3304c749
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:00007ffdfc39f018 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2f332a2fa0 RCX: 00007f2f3304c749
RDX: 0000200000000a40 RSI: 0000000000000707 RDI: 0000000000000004
RBP: 00007f2f330d0f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2f332a2fa0 R14: 00007f2f332a2fa0 R15: 0000000000000003
 </TASK>

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
2026/01/26 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.