syzbot


WARNING in gl861_ctrl_msg/usb_submit_urb

Status: upstream: reported C repro on 2026/05/03 22:17
Reported-by: syzbot+7f000fe2ea315f028763@syzkaller.appspotmail.com
First crash: 67d, last: 4d01h
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 9 38d 164d 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 11 55d 188d 0/3 upstream: reported C repro on 2026/01/02 10:29
upstream WARNING in gl861_ctrl_msg/usb_submit_urb prio:low usb -1 C error 317 14h42m 441d 0/29 upstream: reported C repro on 2025/04/24 21:39

Sample crash report:
------------[ cut here ]------------
usb 3-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0
WARNING: CPU: 0 PID: 4359 at drivers/usb/core/urb.c:412 usb_submit_urb+0x117a/0x18d0 drivers/usb/core/urb.c:410
Modules linked in:
CPU: 0 PID: 4359 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:usb_submit_urb+0x117a/0x18d0 drivers/usb/core/urb.c:410
Code: df 0f b6 44 05 00 84 c0 0f 85 5e 06 00 00 45 0f b6 45 00 48 c7 c7 80 bc c4 8a 48 8b 74 24 08 4c 89 e2 44 89 f1 e8 56 71 d2 03 <0f> 0b 49 bf 00 00 00 00 00 fc ff df e9 b0 f3 ff ff 89 e9 80 e1 07
RSP: 0018:ffffc9000350f518 EFLAGS: 00010246
RAX: 740462ef35825d00 RBX: ffff88805dee6100 RCX: ffff888072fd5940
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100fc3defa R08: ffff8880b9033d7f R09: 1ffff110172067af
R10: dffffc0000000000 R11: ffffed10172067b0 R12: ffff888023ca1e88
R13: ffff88807e1ef7d0 R14: 0000000080000280 R15: dffffc0000000000
FS:  000055557d50e500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff1919f5000 CR3: 0000000025384000 CR4: 00000000003506e0
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+0x88d/0x2090 drivers/i2c/i2c-core-base.c:-1
 i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:469 [inline]
 __i2c_smbus_xfer+0x14fe/0x2600 drivers/i2c/i2c-core-smbus.c:607
 i2c_smbus_xfer+0x272/0x3b0 drivers/i2c/i2c-core-smbus.c:545
 i2cdev_ioctl_smbus+0x1d8/0x660 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: 0033:0x7f64f9e0fe59
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:00007fff54bea7d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f64fa088fa0 RCX: 00007f64f9e0fe59
RDX: 0000200000000380 RSI: 0000000000000720 RDI: 0000000000000004
RBP: 00007f64f9ea5e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f64fa088fac R14: 00007f64fa088fa0 R15: 00007f64fa088fa0
 </TASK>

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/06/23 22:33 linux-5.15.y eceeec79dbc6 4b1d8f01 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in gl861_ctrl_msg/usb_submit_urb
2026/07/06 04:57 linux-5.15.y c86c4726e7f0 fcece630 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in gl861_ctrl_msg/usb_submit_urb
2026/06/23 12:40 linux-5.15.y eceeec79dbc6 4b1d8f01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in gl861_ctrl_msg/usb_submit_urb
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.