Hello, syzbot found the following issue on: HEAD commit: b97d64c72259 Merge tag '6.6-rc-smb3-client-fixes-part1' of.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=174657e0680000 kernel config: https://syzkaller.appspot.com/x/.config?x=763a90eee2968442 dashboard link: https://syzkaller.appspot.com/bug?extid=0958c189aec84815fdf2 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-b97d64c7.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/45e3d1c1d5e8/vmlinux-b97d64c7.xz kernel image: https://storage.googleapis.com/syzbot-assets/f9587ba4915c/bzImage-b97d64c7.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0958c189aec84815fdf2@xxxxxxxxxxxxxxxxxxxxxxxxx WARNING: CPU: 3 PID: 122 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline] WARNING: CPU: 3 PID: 122 at drivers/block/floppy.c:999 process_fd_request drivers/block/floppy.c:2847 [inline] WARNING: CPU: 3 PID: 122 at drivers/block/floppy.c:999 floppy_queue_rq+0x344/0x3b0 drivers/block/floppy.c:2879 Modules linked in: CPU: 3 PID: 122 Comm: kworker/3:1H Not tainted 6.5.0-syzkaller-08894-gb97d64c72259 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Workqueue: kblockd blk_mq_run_work_fn RIP: 0010:schedule_bh drivers/block/floppy.c:999 [inline] RIP: 0010:process_fd_request drivers/block/floppy.c:2847 [inline] RIP: 0010:floppy_queue_rq+0x344/0x3b0 drivers/block/floppy.c:2879 Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 5e 48 8b 56 30 48 c7 c7 e0 fc f2 8a e8 25 09 12 fc 0f 0b eb 8d e8 dc bd 4b fc <0f> 0b e9 d5 fe ff ff 48 89 df e8 cd a5 a0 fc e9 d9 fc ff ff 48 89 RSP: 0018:ffffc900027bf988 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff8880186ac340 RSI: ffffffff853a8134 RDI: 0000000000000001 RBP: ffffffff8d6edc80 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888020a42408 R13: ffff888020a423c0 R14: dffffc0000000000 R15: ffffc900027bfc00 FS: 0000000000000000(0000) GS:ffff88806b900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f97b40fbd58 CR3: 000000000c776000 CR4: 0000000000350ee0 Call Trace: <TASK> blk_mq_dispatch_rq_list+0x694/0x22d0 block/blk-mq.c:2049 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:170 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:184 [inline] __blk_mq_sched_dispatch_requests+0xd30/0x1740 block/blk-mq-sched.c:309 blk_mq_sched_dispatch_requests+0x104/0x180 block/blk-mq-sched.c:333 blk_mq_run_work_fn+0x1fe/0x390 block/blk-mq.c:2434 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600 worker_thread+0x687/0x1110 kernel/workqueue.c:2751 kthread+0x33a/0x430 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 </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. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
