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BUG: KCSAN: data-race in ext4_mark_iloc_dirty / find_inode_bit

write to 0xffff88813a989c14 of 4 bytes by task 31881 on cpu 0:
 ext4_do_update_inode fs/ext4/inode.c:5087 [inline]
 ext4_mark_iloc_dirty+0x888/0x1700 fs/ext4/inode.c:5741
 ext4_xattr_set_handle+0xf77/0x1120 fs/ext4/xattr.c:2402
 ext4_initxattrs+0x66/0xb0 fs/ext4/xattr_security.c:44
 security_inode_init_security+0x1a9/0x260 security/security.c:1099
 ext4_init_security+0x30/0x40 fs/ext4/xattr_security.c:58
 __ext4_new_inode+0x2a0a/0x2fd0 fs/ext4/ialloc.c:1325
 ext4_create+0x18c/0x320 fs/ext4/namei.c:2746
 lookup_open fs/namei.c:3282 [inline]
 open_last_lookups fs/namei.c:3352 [inline]
 path_openat+0xcec/0x1ec0 fs/namei.c:3558
 do_filp_open+0x105/0x220 fs/namei.c:3588
 do_sys_openat2+0xb5/0x2b0 fs/open.c:1200
 do_sys_open fs/open.c:1216 [inline]
 __do_sys_creat fs/open.c:1290 [inline]
 __se_sys_creat fs/open.c:1284 [inline]
 __x64_sys_creat+0x62/0x80 fs/open.c:1284
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff88813a989c14 of 4 bytes by task 31880 on cpu 1:
 recently_deleted fs/ext4/ialloc.c:705 [inline]
 find_inode_bit+0x1ef/0x330 fs/ext4/ialloc.c:731
 __ext4_new_inode+0xc9a/0x2fd0 fs/ext4/ialloc.c:1066
 ext4_symlink+0x2cc/0x700 fs/ext4/namei.c:3293
 vfs_symlink+0x23f/0x350 fs/namei.c:4250
 do_symlinkat+0x104/0x380 fs/namei.c:4279
 __do_sys_symlink fs/namei.c:4301 [inline]
 __se_sys_symlink fs/namei.c:4299 [inline]
 __x64_sys_symlink+0x52/0x60 fs/namei.c:4299
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x6151c79e -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 31880 Comm: syz-executor.4 Not tainted 5.15.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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