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BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru

write to 0xffff888237c2aa10 of 8 bytes by task 3145 on cpu 0:
 __invalidate_bh_lrus fs/buffer.c:1488 [inline]
 invalidate_bh_lru+0x88/0xf0 fs/buffer.c:1500
 csd_do_func kernel/smp.c:133 [inline]
 smp_call_function_many_cond+0x697/0xc20 kernel/smp.c:846
 on_each_cpu_cond_mask+0x3c/0x80 kernel/smp.c:1023
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x2a/0x30 fs/buffer.c:1519
 kill_bdev block/bdev.c:78 [inline]
 blkdev_flush_mapping+0xb6/0x1c0 block/bdev.c:638
 blkdev_put_whole block/bdev.c:669 [inline]
 bdev_release+0x3f6/0x530 block/bdev.c:985
 kill_block_super+0x54/0x60 fs/super.c:1683
 deactivate_locked_super+0x7a/0x1c0 fs/super.c:477
 deactivate_super+0x9b/0xb0 fs/super.c:510
 cleanup_mnt+0x272/0x2e0 fs/namespace.c:1267
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1274
 task_work_run+0x135/0x1a0 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:108 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
 syscall_exit_to_user_mode+0xbc/0x130 kernel/entry/common.c:212
 do_syscall_64+0x65/0x120 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff888237c2aa10 of 8 bytes by task 3102 on cpu 1:
 has_bh_in_lru+0x35/0x1e0 fs/buffer.c:1510
 smp_call_function_many_cond+0x2e4/0xc20 kernel/smp.c:808
 on_each_cpu_cond_mask+0x3c/0x80 kernel/smp.c:1023
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x2a/0x30 fs/buffer.c:1519
 kill_bdev block/bdev.c:78 [inline]
 blkdev_flush_mapping+0xb6/0x1c0 block/bdev.c:638
 blkdev_put_whole block/bdev.c:669 [inline]
 bdev_release+0x3f6/0x530 block/bdev.c:985
 kill_block_super+0x54/0x60 fs/super.c:1683
 deactivate_locked_super+0x7a/0x1c0 fs/super.c:477
 deactivate_super+0x9b/0xb0 fs/super.c:510
 cleanup_mnt+0x272/0x2e0 fs/namespace.c:1267
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1274
 task_work_run+0x135/0x1a0 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:108 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
 syscall_exit_to_user_mode+0xbc/0x130 kernel/entry/common.c:212
 do_syscall_64+0x65/0x120 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0xffff8881067e4d00 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 3102 Comm: syz-executor.3 Not tainted 6.7.0-syzkaller-01727-gab27740f7665 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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