loop3: detected capacity change from 0 to 2048
==================================================================
BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lrus_cpu

write to 0xffff888237c286b8 of 8 bytes by task 3223 on cpu 0:
 __invalidate_bh_lrus fs/buffer.c:1381 [inline]
 invalidate_bh_lrus_cpu+0xad/0xe0 fs/buffer.c:1426
 lru_add_and_bh_lrus_drain mm/swap.c:802 [inline]
 lru_add_drain_per_cpu+0x4e/0x70 mm/swap.c:821
 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289
 process_scheduled_works kernel/workqueue.c:2352 [inline]
 worker_thread+0x78f/0xa70 kernel/workqueue.c:2441
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

read to 0xffff888237c286b8 of 8 bytes by task 7574 on cpu 1:
 has_bh_in_lru+0x31/0x1c0 fs/buffer.c:1403
 smp_call_function_many_cond+0x2e3/0x650 kernel/smp.c:935
 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1155
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x26/0x30 fs/buffer.c:1412
 kill_bdev block/bdev.c:75 [inline]
 set_blocksize+0x270/0x2a0 block/bdev.c:152
 sb_set_blocksize+0x29/0xb0 block/bdev.c:161
 ext4_load_super fs/ext4/super.c:5000 [inline]
 __ext4_fill_super fs/ext4/super.c:5056 [inline]
 ext4_fill_super+0xdb3/0x4500 fs/ext4/super.c:5644
 get_tree_bdev+0x2b4/0x3b0 fs/super.c:1282
 ext4_get_tree+0x18/0x20 fs/ext4/super.c:5675
 vfs_get_tree+0x49/0x190 fs/super.c:1489
 do_new_mount+0x200/0x650 fs/namespace.c:3145
 path_mount+0x4aa/0xb70 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount+0x281/0x2d0 fs/namespace.c:3674
 __x64_sys_mount+0x63/0x70 fs/namespace.c:3674
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0xffff8881067353a8 -> 0xffff88810af80340

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 7574 Comm: syz-executor.3 Not tainted 6.2.0-rc2-syzkaller-00203-g1f5abbd77e2c-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
==================================================================
EXT4-fs (loop3): cluster size (1024) smaller than block size (4096)