EXT4-fs (loop3): VFS: Can't find ext4 filesystem
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BUG: KCSAN: data-race in __queue_work / wq_worker_running

read-write to 0xffff888237c2d164 of 4 bytes by task 23982 on cpu 0:
 wq_worker_running+0x98/0x120 kernel/workqueue.c:1265
 schedule_timeout+0xcc/0x230 kernel/time/timer.c:2183
 synchronize_rcu_expedited_wait_once kernel/rcu/tree_exp.h:571 [inline]
 synchronize_rcu_expedited_wait kernel/rcu/tree_exp.h:625 [inline]
 rcu_exp_wait_wake kernel/rcu/tree_exp.h:696 [inline]
 rcu_exp_sel_wait_wake+0x559/0x1390 kernel/rcu/tree_exp.h:730
 wait_rcu_exp_gp+0x1e/0x30 kernel/rcu/tree_exp.h:512
 process_one_work kernel/workqueue.c:2633 [inline]
 process_scheduled_works+0x5b8/0xa40 kernel/workqueue.c:2706
 worker_thread+0x525/0x730 kernel/workqueue.c:2787
 kthread+0x1d7/0x210 kernel/kthread.c:388
 ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

read to 0xffff888237c2d164 of 4 bytes by task 7492 on cpu 1:
 need_more_worker kernel/workqueue.c:835 [inline]
 kick_pool kernel/workqueue.c:1118 [inline]
 __queue_work+0x7ce/0xbb0 kernel/workqueue.c:1803
 queue_work_on+0x95/0xf0 kernel/workqueue.c:1837
 __lru_add_drain_all+0x2e6/0x420 mm/swap.c:891
 lru_add_drain_all+0x10/0x20 mm/swap.c:905
 invalidate_bdev+0x54/0x70 block/bdev.c:89
 __ext4_fill_super fs/ext4/super.c:5678 [inline]
 ext4_fill_super+0x1789/0x39b0 fs/ext4/super.c:5703
 get_tree_bdev+0x250/0x2e0 fs/super.c:1619
 ext4_get_tree+0x1c/0x20 fs/ext4/super.c:5735
 vfs_get_tree+0x53/0x1d0 fs/super.c:1784
 do_new_mount+0x227/0x690 fs/namespace.c:3352
 path_mount+0x496/0xb30 fs/namespace.c:3679
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3875
 __x64_sys_mount+0x67/0x80 fs/namespace.c:3875
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x00000000 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 7492 Comm: syz-executor.3 Not tainted 6.8.0-rc5-syzkaller-00020-g9fc1ccccfd8d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
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