syzbot


WARNING in hanwang_open/usb_submit_urb

Status: premoderation: reported C repro on 2025/08/11 21:20
Bug presence: origin:lts
[Documentation on labels]
Reported-by: syzbot+f0c9624847cac1684525@syzkaller.appspotmail.com
First crash: 17d, last: 2d02h
Bug presence (2)
Date Name Commit Repro Result
2025/08/12 lts (merge base) 259f4977409c C [report] WARNING in hanwang_open/usb_submit_urb
2025/08/12 upstream (ToT) 8f5ae30d69d7 C Didn't crash
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in hanwang_open/usb_submit_urb usb input -1 C error 6 19d 169d 0/29 upstream: reported C repro on 2025/03/13 16:59
Last patch testing requests (1)
Created Duration User Patch Repo Result
2025/08/27 14:40 17m retest repro android16-6.12 report log

Sample crash report:
------------[ cut here ]------------
usb 1-1: BOGUS urb xfer, pipe 1 != type 3
WARNING: CPU: 1 PID: 95 at drivers/usb/core/urb.c:504 usb_submit_urb+0xca8/0x1800 drivers/usb/core/urb.c:503
Modules linked in:
CPU: 1 UID: 0 PID: 95 Comm: acpid Not tainted 6.12.38-syzkaller-gb632dc2e1d79 #0 9921eaa9ec7b66c9f160f95d92f0c8099666722b
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:usb_submit_urb+0xca8/0x1800 drivers/usb/core/urb.c:503
Code: 4c 89 e8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 d5 08 00 00 45 8b 45 00 48 c7 c7 00 4d 47 86 4c 89 fe 4c 89 e2 e8 08 e1 7b fd <0f> 0b 44 8b 6d ac 44 0f b6 75 98 4c 89 f7 48 c7 c6 20 3d 7d 87 e8
RSP: 0000:ffffc90000e4f638 EFLAGS: 00010246
RAX: 26e4a29585cf0a00 RBX: ffff888103f46200 RCX: ffff88810b37cc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc90000e4f6b8 R08: ffff8881f6e294d3 R09: 1ffff1103edc529a
R10: dffffc0000000000 R11: ffffed103edc529b R12: ffff888109a5d200
R13: ffffffff86474c28 R14: dffffc0000000000 R15: ffffffff8647a940
FS:  00007fcaf7056740(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f300e0651b0 CR3: 000000010b7b4000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 hanwang_open+0xa3/0xd0 drivers/input/tablet/hanwang.c:284
 input_open_device+0x183/0x310 drivers/input/input.c:617
 evdev_open_device drivers/input/evdev.c:391 [inline]
 evdev_open+0x492/0x650 drivers/input/evdev.c:478
 chrdev_open+0x4db/0x5f0 fs/char_dev.c:414
 do_dentry_open+0x978/0x1510 fs/open.c:960
 vfs_open+0x86/0x230 fs/open.c:1090
 do_open fs/namei.c:3774 [inline]
 path_openat+0x2b6c/0x34b0 fs/namei.c:3933
 do_filp_open+0x1c6/0x3e0 fs/namei.c:3960
 do_sys_openat2+0x12c/0x1c0 fs/open.c:1438
 do_sys_open fs/open.c:1453 [inline]
 __do_sys_openat fs/open.c:1469 [inline]
 __se_sys_openat fs/open.c:1464 [inline]
 __x64_sys_openat+0x13a/0x170 fs/open.c:1464
 x64_sys_call+0xe69/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fcaf70e0407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe9607a090 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fcaf7056740 RCX: 00007fcaf70e0407
RDX: 0000000000080800 RSI: 00007ffe9607a2a0 RDI: ffffffffffffff9c
RBP: 00007ffe9607a2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000040
R13: 00007ffe9607a3a0 R14: 000055ec3e6937fe R15: 00007ffe9607a3a0
 </TASK>
---[ end trace 0000000000000000 ]---

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/11 21:19 android16-6.12 b632dc2e1d79 c06e8995 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hanwang_open/usb_submit_urb
* Struck through repros no longer work on HEAD.