Hello, syzbot found the following issue on: HEAD commit: 09688c0166e7 Linux 5.17-rc8 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13d09be9700000 kernel config: https://syzkaller.appspot.com/x/.config?x=d35f9bc6884af6c9 dashboard link: https://syzkaller.appspot.com/bug?extid=43f787e4cfb1ef7b84a8 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+43f787e4cfb1ef7b84a8@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 3 PID: 12378 at drivers/block/floppy.c:1000 schedule_bh drivers/block/floppy.c:1000 [inline] WARNING: CPU: 3 PID: 12378 at drivers/block/floppy.c:1000 process_fd_request drivers/block/floppy.c:2851 [inline] WARNING: CPU: 3 PID: 12378 at drivers/block/floppy.c:1000 floppy_check_events+0x44a/0x560 drivers/block/floppy.c:4082 Modules linked in: CPU: 3 PID: 12378 Comm: kworker/3:181 Not tainted 5.17.0-rc8-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Workqueue: events_freezable_power_ disk_events_workfn RIP: 0010:schedule_bh drivers/block/floppy.c:1000 [inline] RIP: 0010:process_fd_request drivers/block/floppy.c:2851 [inline] RIP: 0010:floppy_check_events+0x44a/0x560 drivers/block/floppy.c:4082 Code: 05 17 81 02 0c 60 9b 7c 84 e8 62 f0 cf fc e9 ba fd ff ff 45 31 e4 e9 6e fc ff ff e8 20 70 43 fd e9 5b fd ff ff e8 86 f6 fb fc <0f> 0b eb b8 48 89 de 48 c7 c7 20 9f 6a 8c e8 33 e3 84 ff e9 e4 fb RSP: 0018:ffffc90028107cb0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88805cdd8000 RSI: ffffffff847cc9aa RDI: 0000000000000003 RBP: ffffffff907f72f0 R08: 0000000000000000 R09: ffffffff8c6b07a7 R10: ffffffff847cc961 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000f58f6db0 CR3: 0000000073008000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> disk_check_events+0xc2/0x420 block/disk-events.c:193 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307 worker_thread+0x657/0x1110 kernel/workqueue.c:2454 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
