syzbot


WARNING in dib0700_i2c_xfer/usb_submit_urb

Status: upstream: reported C repro on 2025/11/03 10:21
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+32addfbe8c14f082797e@syzkaller.appspotmail.com
First crash: 4d08h, last: 2d09h
Bug presence (1)
Date Name Commit Repro Result
2025/11/07 upstream (ToT) 4a0c9b339199 C [report] WARNING in dib0700_i2c_xfer/usb_submit_urb
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 143d 149d 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 9 21d 54d 0/3 upstream: reported C repro on 2025/09/13 22:56
upstream WARNING in dib0700_i2c_xfer/usb_submit_urb usb -1 C error 221 2h30m 228d 0/29 upstream: reported C repro on 2025/03/24 18:18
linux-5.15 WARNING in dib0700_i2c_xfer/usb_submit_urb origin:upstream -1 C 8 1d10h 92d 0/3 upstream: reported C repro on 2025/08/06 23:36

Sample crash report:
------------[ cut here ]------------
usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0
WARNING: CPU: 0 PID: 5959 at drivers/usb/core/urb.c:413 usb_submit_urb+0x10a1/0x17d0 drivers/usb/core/urb.c:411
Modules linked in:
CPU: 0 PID: 5959 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:usb_submit_urb+0x10a1/0x17d0 drivers/usb/core/urb.c:411
Code: df 0f b6 44 05 00 84 c0 0f 85 2d 06 00 00 45 0f b6 45 00 48 c7 c7 00 cb 4a 8b 48 8b 74 24 20 4c 89 fa 44 89 f1 e8 cf 51 00 fb <0f> 0b 49 bc 00 00 00 00 00 fc ff df e9 96 f4 ff ff 89 e9 80 e1 07
RSP: 0018:ffffc900045af870 EFLAGS: 00010246
RAX: f77258a7a08dee00 RBX: ffff88802eaee100 RCX: ffff88802e285a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 1ffff11005d5cac3 R08: ffff8880b8e28c13 R09: 1ffff110171c5182
R10: dffffc0000000000 R11: ffffed10171c5183 R12: dffffc0000000000
R13: ffff88802eae5618 R14: 0000000080000280 R15: ffff88802a20daf0
FS:  0000555580438500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fae69e60fe8 CR3: 0000000077c69000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 usb_start_wait_urb+0x115/0x4b0 drivers/usb/core/message.c:59
 usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
 usb_control_msg+0x233/0x3e0 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+0xb92/0xf60 drivers/media/usb/dvb-usb/dib0700_core.c:361
 __i2c_transfer+0x868/0x2080 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x250/0x390 drivers/i2c/i2c-core-base.c:2328
 i2cdev_ioctl_rdwr+0x3b0/0x690 drivers/i2c/i2c-dev.c:297
 i2cdev_ioctl+0x646/0x7e0 drivers/i2c/i2c-dev.c:458
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdb2538efc9
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:00007ffdf5ce9c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fdb255e5fa0 RCX: 00007fdb2538efc9
RDX: 0000200000000a40 RSI: 0000000000000707 RDI: 0000000000000004
RBP: 00007fdb25411f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdb255e5fa0 R14: 00007fdb255e5fa0 R15: 0000000000000003
 </TASK>

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/11/03 18:00 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/11/03 16:26 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/11/03 13:13 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/11/05 08:50 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/11/03 10:30 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/11/03 10:20 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in dib0700_i2c_xfer/usb_submit_urb
* Struck through repros no longer work on HEAD.