loop5: detected capacity change from 0 to 512
==================================================================
BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru

write to 0xffff888237c2a378 of 8 bytes by task 13916 on cpu 0:
 __invalidate_bh_lrus fs/buffer.c:1424 [inline]
 invalidate_bh_lru+0x9f/0xf0 fs/buffer.c:1436
 smp_call_function_many_cond+0x578/0x730 kernel/smp.c:978
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1155
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x2a/0x30 fs/buffer.c:1455
 kill_bdev block/bdev.c:75 [inline]
 set_blocksize+0x266/0x290 block/bdev.c:152
 sb_set_blocksize+0x2d/0xb0 block/bdev.c:161
 ext4_load_super fs/ext4/super.c:4997 [inline]
 __ext4_fill_super fs/ext4/super.c:5053 [inline]
 ext4_fill_super+0xdb3/0x43f0 fs/ext4/super.c:5637
 get_tree_bdev+0x2b1/0x3a0 fs/super.c:1303
 ext4_get_tree+0x1c/0x20 fs/ext4/super.c:5668
 vfs_get_tree+0x51/0x190 fs/super.c:1510
 do_new_mount+0x200/0x650 fs/namespace.c:3042
 path_mount+0x498/0xb40 fs/namespace.c:3372
 do_mount fs/namespace.c:3385 [inline]
 __do_sys_mount fs/namespace.c:3594 [inline]
 __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3571
 __x64_sys_mount+0x67/0x80 fs/namespace.c:3571
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888237c2a378 of 8 bytes by task 13919 on cpu 1:
 has_bh_in_lru+0x35/0x1e0 fs/buffer.c:1446
 smp_call_function_many_cond+0x322/0x730 kernel/smp.c:935
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1155
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x2a/0x30 fs/buffer.c:1455
 kill_bdev block/bdev.c:75 [inline]
 set_blocksize+0x266/0x290 block/bdev.c:152
 sb_set_blocksize+0x2d/0xb0 block/bdev.c:161
 ext4_load_super fs/ext4/super.c:4997 [inline]
 __ext4_fill_super fs/ext4/super.c:5053 [inline]
 ext4_fill_super+0xdb3/0x43f0 fs/ext4/super.c:5637
 get_tree_bdev+0x2b1/0x3a0 fs/super.c:1303
 ext4_get_tree+0x1c/0x20 fs/ext4/super.c:5668
 vfs_get_tree+0x51/0x190 fs/super.c:1510
 do_new_mount+0x200/0x650 fs/namespace.c:3042
 path_mount+0x498/0xb40 fs/namespace.c:3372
 do_mount fs/namespace.c:3385 [inline]
 __do_sys_mount fs/namespace.c:3594 [inline]
 __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3571
 __x64_sys_mount+0x67/0x80 fs/namespace.c:3571
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0xffff888142c5e138 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 13919 Comm: syz-executor.5 Not tainted 6.3.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
==================================================================
EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
ext4 filesystem being mounted at /root/syzkaller-testdir944885912/syzkaller.Gvt7q6/246/file0 supports timestamps until 2038 (0x7fffffff)