floppy0: no floppy controllers found work still pending ===================================================== BUG: KMSAN: uninit-value in strcmp+0xcf/0x120 lib/string.c:283 strcmp+0xcf/0x120 lib/string.c:283 unregister_blkdev+0x142/0x270 block/genhd.c:293 do_floppy_init+0x4d3/0x15f0 drivers/block/floppy.c:4751 floppy_async_init+0x17/0x20 drivers/block/floppy.c:4767 async_run_entry_fn+0x97/0x420 kernel/async.c:127 process_one_work+0xb0d/0x1410 kernel/workqueue.c:2405 worker_thread+0x107e/0x1d60 kernel/workqueue.c:2552 kthread+0x3e8/0x540 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Uninit was created at: slab_post_alloc_hook+0x12d/0xb60 mm/slab.h:716 slab_alloc_node mm/slub.c:3451 [inline] __kmem_cache_alloc_node+0x4ff/0x8b0 mm/slub.c:3490 kmalloc_trace+0x51/0x200 mm/slab_common.c:1057 kmalloc include/linux/slab.h:559 [inline] __register_blkdev+0x1a9/0x650 block/genhd.c:246 do_floppy_init+0x420/0x15f0 drivers/block/floppy.c:4604 floppy_async_init+0x17/0x20 drivers/block/floppy.c:4767 async_run_entry_fn+0x97/0x420 kernel/async.c:127 process_one_work+0xb0d/0x1410 kernel/workqueue.c:2405 worker_thread+0x107e/0x1d60 kernel/workqueue.c:2552 kthread+0x3e8/0x540 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 6.4.0-rc1-syzkaller-00012-g16a8829130ca #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 Workqueue: events_unbound async_run_entry_fn =====================================================