EXT4-fs (loop0): failed to open journal device unknown-block(0,0) -6
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BUG: KCSAN: data-race in __find_get_block / has_bh_in_lru

read-write to 0xffff888237d2ba28 of 8 bytes by task 15887 on cpu 1:
 bh_lru_install fs/buffer.c:1337 [inline]
 __find_get_block+0x434/0x8a0 fs/buffer.c:1400
 bdev_getblk+0x30/0x3b0 fs/buffer.c:1425
 __getblk include/linux/buffer_head.h:380 [inline]
 sb_getblk include/linux/buffer_head.h:386 [inline]
 ext4_read_block_bitmap_nowait+0x165/0x680 fs/ext4/balloc.c:488
 ext4_read_block_bitmap+0x20/0x70 fs/ext4/balloc.c:600
 ext4_mb_mark_context+0x92/0x9b0 fs/ext4/mballoc.c:3997
 ext4_mb_clear_bb fs/ext4/mballoc.c:6467 [inline]
 ext4_free_blocks+0x801/0x14b0 fs/ext4/mballoc.c:6652
 ext4_remove_blocks fs/ext4/extents.c:2529 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2712 [inline]
 ext4_ext_remove_space+0x1808/0x2940 fs/ext4/extents.c:2961
 ext4_ext_truncate+0xc4/0x150 fs/ext4/extents.c:4466
 ext4_truncate+0x776/0xb10 fs/ext4/inode.c:4217
 ext4_evict_inode+0x8b4/0xdd0 fs/ext4/inode.c:263
 evict+0x2f0/0x570 fs/inode.c:796
 iput_final fs/inode.c:1946 [inline]
 iput+0x42a/0x5b0 fs/inode.c:1972
 d_delete_notify include/linux/fsnotify.h:332 [inline]
 vfs_rmdir+0x29f/0x320 fs/namei.c:4407
 do_rmdir+0x194/0x330 fs/namei.c:4453
 __do_sys_unlinkat fs/namei.c:4629 [inline]
 __se_sys_unlinkat fs/namei.c:4623 [inline]
 __x64_sys_unlinkat+0xa2/0xb0 fs/namei.c:4623
 x64_sys_call+0x28d8/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:264
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888237d2ba28 of 8 bytes by task 19582 on cpu 0:
 has_bh_in_lru+0x35/0x1f0 fs/buffer.c:1521
 smp_call_function_many_cond+0x2d5/0xc20 kernel/smp.c:837
 on_each_cpu_cond_mask+0x3c/0x90 kernel/smp.c:1051
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x2a/0x30 fs/buffer.c:1530
 invalidate_bdev+0x42/0x70 block/bdev.c:100
 __ext4_fill_super fs/ext4/super.c:5708 [inline]
 ext4_fill_super+0x6f3/0x3a10 fs/ext4/super.c:5733
 get_tree_bdev_flags+0x29f/0x310 fs/super.c:1636
 get_tree_bdev+0x1f/0x30 fs/super.c:1659
 ext4_get_tree+0x1c/0x30 fs/ext4/super.c:5765
 vfs_get_tree+0x56/0x1e0 fs/super.c:1814
 do_new_mount+0x227/0x690 fs/namespace.c:3507
 path_mount+0x49b/0xb30 fs/namespace.c:3834
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x27c/0x2d0 fs/namespace.c:4034
 __x64_sys_mount+0x67/0x80 fs/namespace.c:4034
 x64_sys_call+0x2c84/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x0000000000000000 -> 0xffff888141ef4f70

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 19582 Comm: syz.0.4886 Tainted: G        W          6.13.0-rc3-syzkaller-00289-g48f506ad0b68 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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