loop1: detected capacity change from 0 to 512
==================================================================
BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru

write to 0xffff888237c2a448 of 8 bytes by task 3107 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
 invalidate_bdev+0x4f/0x70 block/bdev.c:85
 ext4_put_super+0x51b/0x7e0 fs/ext4/super.c:1361
 generic_shutdown_super+0xdb/0x210 fs/super.c:696
 kill_block_super+0x2a/0x60 fs/super.c:1667
 ext4_kill_sb+0x44/0x80 fs/ext4/super.c:7330
 deactivate_locked_super+0x7a/0x1c0 fs/super.c:484
 deactivate_super+0x9b/0xb0 fs/super.c:517
 cleanup_mnt+0x272/0x2e0 fs/namespace.c:1256
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1263
 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+0xd6/0xe0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x6c/0xb0 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:296
 do_syscall_64+0x50/0x110 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff888237c2a448 of 8 bytes by task 16023 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:75 [inline]
 set_blocksize+0x260/0x290 block/bdev.c:152
 sb_set_blocksize+0x2d/0xb0 block/bdev.c:161
 ext4_load_super fs/ext4/super.c:5108 [inline]
 __ext4_fill_super fs/ext4/super.c:5236 [inline]
 ext4_fill_super+0xad5/0x39a0 fs/ext4/super.c:5712
 get_tree_bdev+0x272/0x300 fs/super.c:1598
 ext4_get_tree+0x1c/0x20 fs/ext4/super.c:5744
 vfs_get_tree+0x51/0x1b0 fs/super.c:1771
 do_new_mount+0x203/0x660 fs/namespace.c:3337
 path_mount+0x496/0xb30 fs/namespace.c:3664
 do_mount fs/namespace.c:3677 [inline]
 __do_sys_mount fs/namespace.c:3886 [inline]
 __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3863
 __x64_sys_mount+0x67/0x80 fs/namespace.c:3863
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0xffff888104c0d138 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 16023 Comm: syz-executor.1 Not tainted 6.7.0-rc7-syzkaller-00051-g2639772a11c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
==================================================================
EXT4-fs (loop1): orphan cleanup on readonly fs
EXT4-fs error (device loop1): ext4_quota_enable:7063: inode #3: comm syz-executor.1: iget: special inode unallocated
EXT4-fs error (device loop1): ext4_quota_enable:7066: comm syz-executor.1: Bad quota inode: 3, type: 0
EXT4-fs warning (device loop1): ext4_enable_quotas:7107: Failed to enable quota tracking (type=0, err=-117, ino=3). Please run e2fsck to fix.
EXT4-fs (loop1): Cannot turn on quotas: error -117
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 ro without journal. Quota mode: writeback.
EXT4-fs (loop1): warning: mounting fs with errors, running e2fsck is recommended
EXT4-fs error (device loop1): ext4_quota_enable:7063: inode #3: comm syz-executor.1: iget: special inode unallocated
EXT4-fs error (device loop1): ext4_quota_enable:7066: comm syz-executor.1: Bad quota inode: 3, type: 0
EXT4-fs warning (device loop1): ext4_enable_quotas:7107: Failed to enable quota tracking (type=0, err=-117, ino=3). Please run e2fsck to fix.