syzbot


WARNING in dib0700_i2c_xfer/usb_submit_urb

Status: upstream: reported C repro on 2025/06/11 18:39
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+9bc368710cd5aec03014@syzkaller.appspotmail.com
First crash: 33d, last: 27d
Bug presence (1)
Date Name Commit Repro Result
2025/06/14 upstream (ToT) 4774cfe3543a C [report] WARNING in dib0700_i2c_xfer/usb_submit_urb
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in dib0700_i2c_xfer/usb_submit_urb usb -1 C error 33 1d07h 112d 0/29 upstream: reported C repro on 2025/03/24 18:18

Sample crash report:
------------[ cut here ]------------
usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0
WARNING: CPU: 1 PID: 4250 at drivers/usb/core/urb.c:413 usb_submit_urb+0x11ef/0x1970 drivers/usb/core/urb.c:411
Modules linked in:
CPU: 1 PID: 4250 Comm: syz-executor386 Not tainted 6.1.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:usb_submit_urb+0x11ef/0x1970 drivers/usb/core/urb.c:411
Code: fc ff df 0f b6 44 05 00 84 c0 0f 85 84 06 00 00 45 0f b6 07 48 c7 c7 a0 48 0e 8b 48 8b 34 24 4c 89 e2 44 89 f1 e8 e1 dd 36 fb <0f> 0b 49 bd 00 00 00 00 00 fc ff df e9 46 f3 ff ff 89 e9 80 e1 07
RSP: 0018:ffffc90003b97870 EFLAGS: 00010246
RAX: 384283cc257b4900 RBX: ffff88801de77800 RCX: ffff88807d671dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff110060fa2d7 R08: dffffc0000000000 R09: fffff52000772e9d
R10: fffff52000772e9d R11: 1ffff92000772e9c R12: ffff88801fe59460
R13: dffffc0000000000 R14: 0000000080000280 R15: ffff8880307d16b8
FS:  000055556ab67380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002580 CR3: 000000001ebd2000 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
 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+0xbbd/0xf80 drivers/media/usb/dvb-usb/dib0700_core.c:361
 __i2c_transfer+0x864/0x2260 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x24c/0x390 drivers/i2c/i2c-core-base.c:2333
 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:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6a60a378f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffeb64aa2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6a60a378f9
RDX: 0000200000002580 RSI: 0000000000000707 RDI: 0000000000000004
RBP: 00007f6a60aaa5f0 R08: 00232d6332692f76 R09: 0000000000000006
R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000001
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/12 09:12 linux-6.1.y 58485ff1a74f 98683f8f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/06/17 08:48 linux-6.1.y 58485ff1a74f cfebc887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dib0700_i2c_xfer/usb_submit_urb
2025/06/11 18:38 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dib0700_i2c_xfer/usb_submit_urb
* Struck through repros no longer work on HEAD.