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BUG: KCSAN: data-race in __test_and_clear_bit_le / _find_next_zero_bit

read-write to 0xffff888237c3c0f0 of 8 bytes by task 3071 on cpu 0:
 instrument_read_write include/linux/instrumented.h:55 [inline]
 __instrument_read_write_bitop include/asm-generic/bitops/instrumented-non-atomic.h:84 [inline]
 ___test_and_clear_bit include/asm-generic/bitops/instrumented-non-atomic.h:114 [inline]
 __test_and_clear_bit_le+0x31/0x50 include/asm-generic/bitops/le.h:61
 ext4_free_inode+0x3ec/0x810 fs/ext4/ialloc.c:316
 ext4_evict_inode+0xb1e/0xdc0 fs/ext4/inode.c:303
 evict+0x1aa/0x410 fs/inode.c:665
 iput_final fs/inode.c:1747 [inline]
 iput+0x42c/0x5b0 fs/inode.c:1773
 d_delete_notify include/linux/fsnotify.h:261 [inline]
 vfs_rmdir+0x274/0x2f0 fs/namei.c:4211
 do_rmdir+0x194/0x310 fs/namei.c:4257
 __do_sys_unlinkat fs/namei.c:4435 [inline]
 __se_sys_unlinkat fs/namei.c:4429 [inline]
 __x64_sys_unlinkat+0xa4/0xb0 fs/namei.c:4429
 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 0xffff888237c3c0f0 of 8 bytes by task 3058 on cpu 1:
 _find_next_zero_bit+0x94/0xf0 lib/find_bit.c:198
 find_next_zero_bit include/linux/find.h:186 [inline]
 find_next_zero_bit_le include/linux/find.h:485 [inline]
 find_inode_bit+0xae/0x320 fs/ext4/ialloc.c:724
 __ext4_new_inode+0xcec/0x2290 fs/ext4/ialloc.c:1064
 ext4_mkdir+0x27f/0x740 fs/ext4/namei.c:3012
 vfs_mkdir+0x1ac/0x2b0 fs/namei.c:4115
 do_mkdirat+0xf9/0x260 fs/namei.c:4138
 __do_sys_mkdirat fs/namei.c:4153 [inline]
 __se_sys_mkdirat fs/namei.c:4151 [inline]
 __x64_sys_mkdirat+0x50/0x60 fs/namei.c:4151
 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: 0x0000000001dfffff -> 0x0000000000ffffff

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 3058 Comm: syz-executor.3 Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
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