syzbot


WARNING in gl861_ctrl_msg/usb_submit_urb

Status: upstream: reported on 2026/05/03 22:17
Reported-by: syzbot+7f000fe2ea315f028763@syzkaller.appspotmail.com
First crash: 11d, last: 11d
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 WARNING in gl861_ctrl_msg/usb_submit_urb origin:upstream -1 C error 8 25d 108d 0/2 upstream: reported C repro on 2026/01/27 01:19
linux-6.1 WARNING in gl861_ctrl_msg/usb_submit_urb origin:upstream -1 C error 10 23d 132d 0/3 upstream: reported C repro on 2026/01/02 10:29
upstream WARNING in gl861_ctrl_msg/usb_submit_urb usb -1 C error 248 4h21m 385d 0/29 upstream: reported C repro on 2025/04/24 21:39

Sample crash report:
------------[ cut here ]------------
usb 5-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0
WARNING: CPU: 0 PID: 4305 at drivers/usb/core/urb.c:412 usb_submit_urb+0x11a5/0x1910 drivers/usb/core/urb.c:410
Modules linked in:
CPU: 0 PID: 4305 Comm: syz.0.10 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
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 a0 22 c5 8a 48 8b 34 24 4c 89 e2 44 89 f1 e8 ab 83 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:ffffc9000334f508 EFLAGS: 00010246
RAX: 303affea09783a00 RBX: ffff888022a03300 RCX: 0000000000080000
RDX: ffffc9000b9d9000 RSI: 00000000000322c6 RDI: 00000000000322c7
RBP: 1ffff110031ffb86 R08: ffff8880b9033d7f R09: 1ffff110172067af
R10: dffffc0000000000 R11: ffffed10172067b0 R12: ffff888148543960
R13: ffff88807da080f8 R14: 0000000080000280 R15: ffff888018ffdc30
FS:  00007ff528dda6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32c1cff8 CR3: 00000000731cf000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 usb_start_wait_urb+0x13c/0x580 drivers/usb/core/message.c:61
 usb_internal_control_msg drivers/usb/core/message.c:116 [inline]
 usb_control_msg+0x231/0x3e0 drivers/usb/core/message.c:166
 gl861_ctrl_msg+0x1e9/0x380 drivers/media/usb/dvb-usb-v2/gl861.c:58
 gl861_i2c_master_xfer+0x430/0x640 drivers/media/usb/dvb-usb-v2/gl861.c:-1
 __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

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/05/03 22:16 linux-5.15.y ef251c45f1cd a0d91488 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in gl861_ctrl_msg/usb_submit_urb
* Struck through repros no longer work on HEAD.