syzbot
WARNING in dtv5100_i2c_msg/usb_submit_urb
Status:
upstream: reported C repro on 2025/08/15 23:44
Bug presence:
origin:upstream
[Documentation on labels]
Reported-by: syzbot+80ea31bb816859827846@syzkaller.appspotmail.com
First crash: 344d, last: 21d
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Bug presence (1)
| Date |
Name |
Commit |
Repro |
Result |
| 2025/08/16 |
upstream (ToT) |
dfd4b508c8c6 |
C
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[report] WARNING in dtv5100_i2c_msg/usb_submit_urb
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Fix bisection attempts (5)
Sample crash report:
------------[ cut here ]------------
usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0
WARNING: CPU: 0 PID: 5934 at drivers/usb/core/urb.c:413 usb_submit_urb+0x108d/0x17a0 drivers/usb/core/urb.c:411
Modules linked in:
CPU: 0 PID: 5934 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+0x108d/0x17a0 drivers/usb/core/urb.c:411
Code: fc ff df 41 0f b6 44 05 00 84 c0 0f 85 18 06 00 00 45 0f b6 07 48 c7 c7 40 d8 6b 8b 48 8b 34 24 4c 89 e2 89 e9 e8 73 ae e7 fa <0f> 0b 48 bd 00 00 00 00 00 fc ff df e9 91 f4 ff ff 44 89 f1 80 e1
RSP: 0018:ffffc900033275b8 EFLAGS: 00010246
RAX: 6fc2d1e5f5533700 RBX: ffff888142360f00 RCX: ffff88801e370000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 0000000080000280 R08: ffffc900033271c7 R09: 1ffff92000664e38
R10: dffffc0000000000 R11: fffff52000664e39 R12: ffff88807c4c7988
R13: 1ffff110048eb0a5 R14: ffff88807b7680f8 R15: ffff888024758528
FS: 000055558ee7a500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f346c63a0f5 CR3: 000000002ba1c000 CR4: 00000000003506f0
Call Trace:
<TASK>
usb_start_wait_urb+0x140/0x580 drivers/usb/core/message.c:62
usb_internal_control_msg drivers/usb/core/message.c:117 [inline]
usb_control_msg+0x235/0x3e0 drivers/usb/core/message.c:167
dtv5100_i2c_msg+0x231/0x2f0 drivers/media/usb/dvb-usb/dtv5100.c:65
dtv5100_i2c_xfer+0x1a5/0x610 drivers/media/usb/dvb-usb/dtv5100.c:91
__i2c_transfer+0x891/0x2090 drivers/i2c/i2c-core-base.c:-1
i2c_transfer+0x261/0x3a0 drivers/i2c/i2c-core-base.c:2328
i2c_transfer_buffer_flags+0x10e/0x1a0 drivers/i2c/i2c-core-base.c:2356
i2c_master_send include/linux/i2c.h:110 [inline]
i2cdev_write+0x8b/0x120 drivers/i2c/i2c-dev.c:175
do_loop_readv_writev fs/read_write.c:-1 [inline]
do_iter_write+0x4e5/0xc50 fs/read_write.c:862
vfs_writev fs/read_write.c:933 [inline]
do_writev+0x27f/0x480 fs/read_write.c:976
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f99b4b9de59
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:00007ffe236140c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f99b4e25fa0 RCX: 00007f99b4b9de59
RDX: 0000000000000001 RSI: 0000200000002900 RDI: 0000000000000004
RBP: 00007f99b4c33e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f99b4e25fac R14: 00007f99b4e25fa0 R15: 00007f99b4e25fa0
</TASK>
* Struck through repros no longer work on HEAD.