[syzbot] WARNING in send_packet/usb_submit_urb

[syzbot] WARNING in send_packet/usb_submit_urb

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    1a0e93df1e10 Merge tag 'for-linus' of git://git.kernel.org..
git tree:       upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=14135814080000
kernel config:  https://syzkaller.appspot.com/x/.config?x=833001d0819ddbc9
dashboard link: https://syzkaller.appspot.com/bug?extid=0c3cb6dc05fbbdc3ad66
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10d12414080000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1231e6f0080000

Bisection is inconclusive: the issue happens on the oldest tested release.

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10febf98080000
final oops:     https://syzkaller.appspot.com/x/report.txt?x=12febf98080000
console output: https://syzkaller.appspot.com/x/log.txt?x=14febf98080000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0c3cb6dc05fbbdc3ad66@syzkaller.appspotmail.com

------------[ cut here ]------------
URB ffff888016985200 submitted while active
WARNING: CPU: 0 PID: 3621 at drivers/usb/core/urb.c:378 usb_submit_urb+0x14e2/0x18a0 drivers/usb/core/urb.c:378
Modules linked in:
CPU: 0 PID: 3621 Comm: syz-executor844 Not tainted 5.19.0-rc4-syzkaller-00044-g1a0e93df1e10 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/18/2022
RIP: 0010:usb_submit_urb+0x14e2/0x18a0 drivers/usb/core/urb.c:378
Code: 89 de e8 01 bf ee fb 84 db 0f 85 a9 f3 ff ff e8 f4 c2 ee fb 4c 89 fe 48 c7 c7 80 ef 6e 8a c6 05 d1 14 1b 08 01 e8 1d 8b a6 03 <0f> 0b e9 87 f3 ff ff 41 be ed ff ff ff e9 7c f3 ff ff e8 c7 c2 ee
RSP: 0018:ffffc90002f8fd40 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88801dd08000 RSI: ffffffff8160cfb8 RDI: fffff520005f1f9a
RBP: ffff8880214eba00 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000001 R12: ffff888016985200
R13: ffff88801722a128 R14: 00000000fffffff0 R15: ffff888016985200
FS:  00007f5133ccc700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5133ccc718 CR3: 0000000070f6b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 send_packet+0x422/0xbc0 drivers/media/rc/imon.c:642
 vfd_write+0x2d9/0x550 drivers/media/rc/imon.c:991
 vfs_write+0x269/0xac0 fs/read_write.c:589
 ksys_write+0x127/0x250 fs/read_write.c:644
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f5133d400b9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 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:00007f5133ccc318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f5133dc44d8 RCX: 00007f5133d400b9
RDX: 0000000000000001 RSI: 0000000020000180 RDI: 0000000000000004
RBP: 00007f5133dc44d0 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f5133ccc700 R11: 0000000000000246 R12: ab0847687fc4f2a2
R13: 00007ffe90898ecf R14: 00007f5133ccc400 R15: 0000000000022000
 </TASK>


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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syzbot will keep track of this issue. See:
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For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches

Re: [syzbot] WARNING in send_packet/usb_submit_urb

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+0c3cb6dc05fbbdc3ad66@syzkaller.appspotmail.com

Tested on:

commit:         1a0e93df Merge tag 'for-linus' of git://git.kernel.org..
git tree:       http://kernel.source.codeaurora.cn/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=109a81f4080000
kernel config:  https://syzkaller.appspot.com/x/.config?x=833001d0819ddbc9
dashboard link: https://syzkaller.appspot.com/bug?extid=0c3cb6dc05fbbdc3ad66
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=141cc000080000

Note: testing is done by a robot and is best-effort only.