F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
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BUG: KCSAN: data-race in blk_mq_request_bypass_insert / blk_mq_run_hw_queue

write to 0xffff88812b2c0410 of 8 bytes by task 3439 on cpu 1:
 __list_add include/linux/list.h:70 [inline]
 __list_add include/linux/list.h:63 [inline]
 list_add include/linux/list.h:86 [inline]
 blk_mq_request_bypass_insert+0x193/0x1f0 block/blk-mq.c:1694
 blk_mq_sched_insert_request+0x374/0x3c0 block/blk-mq-sched.c:423
 blk_mq_requeue_work+0x287/0x440 block/blk-mq.c:740
 process_one_work+0x424/0x930 kernel/workqueue.c:2268
 worker_thread+0x9a/0x7e0 kernel/workqueue.c:2414
 kthread+0x203/0x230 kernel/kthread.c:268
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352

read to 0xffff88812b2c0410 of 8 bytes by task 10727 on cpu 0:
 list_empty_careful include/linux/list.h:301 [inline]
 blk_mq_hctx_has_pending block/blk-mq.c:69 [inline]
 blk_mq_run_hw_queue+0x10a/0x1b0 block/blk-mq.c:1515
 blk_mq_make_request+0xb54/0xf60 block/blk-mq.c:2021
 generic_make_request block/blk-core.c:1075 [inline]
 generic_make_request+0x196/0x700 block/blk-core.c:1017
 submit_bio+0x8f/0x3a0 block/blk-core.c:1200
 submit_bh_wbc+0x40d/0x460 fs/buffer.c:3063
 submit_bh fs/buffer.c:3069 [inline]
 __sync_dirty_buffer+0xd9/0x210 fs/buffer.c:3155
 __f2fs_commit_super+0x9f/0xd0 fs/f2fs/super.c:2523
 sanity_check_area_boundary fs/f2fs/super.c:2607 [inline]
 sanity_check_raw_super fs/f2fs/super.c:2779 [inline]
 read_raw_super_block fs/f2fs/super.c:3077 [inline]
 f2fs_fill_super+0x1317/0x3e20 fs/f2fs/super.c:3336
 mount_bdev+0x264/0x2d0 fs/super.c:1417
 f2fs_mount+0x38/0x50 fs/f2fs/super.c:3792
 legacy_get_tree+0x78/0xf0 fs/fs_context.c:622
 vfs_get_tree+0x52/0x190 fs/super.c:1547
 do_new_mount fs/namespace.c:2816 [inline]
 do_mount+0xff0/0x1590 fs/namespace.c:3141
 __do_sys_mount fs/namespace.c:3350 [inline]
 __se_sys_mount fs/namespace.c:3327 [inline]
 __x64_sys_mount+0x12b/0x1a0 fs/namespace.c:3327
 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 10727 Comm: syz-executor.0 Not tainted 5.7.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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