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BUG: KCSAN: data-race in __mark_inode_dirty / other_inode_match

write to 0xffff888125093880 of 8 bytes by task 25337 on cpu 1:
 __mark_inode_dirty+0x601/0x940 fs/fs-writeback.c:2288
 mark_inode_dirty include/linux/fs.h:2172 [inline]
 dquot_alloc_space include/linux/quotaops.h:320 [inline]
 dquot_alloc_block include/linux/quotaops.h:337 [inline]
 ext4_mb_new_blocks+0x2fa/0x1de0 fs/ext4/mballoc.c:4506
 ext4_new_meta_blocks+0x175/0x200 fs/ext4/balloc.c:657
 ext4_xattr_block_set+0xec8/0x1cf0 fs/ext4/xattr.c:2048
 ext4_xattr_set_handle+0x9de/0xd40 fs/ext4/xattr.c:2384
 __ext4_set_acl+0x25a/0x360 fs/ext4/acl.c:214
 ext4_init_acl+0x203/0x2a0 fs/ext4/acl.c:293
 __ext4_new_inode+0x27c4/0x2f10 fs/ext4/ialloc.c:1151
 ext4_mkdir+0x270/0x820 fs/ext4/namei.c:2774
 vfs_mkdir+0x283/0x390 fs/namei.c:3819
 ovl_do_mkdir fs/overlayfs/overlayfs.h:125 [inline]
 ovl_mkdir_real fs/overlayfs/dir.c:122 [inline]
 ovl_create_real+0x1ec/0x2c0 fs/overlayfs/dir.c:169
 ovl_workdir_create+0x299/0x3f0 fs/overlayfs/super.c:650
 ovl_make_workdir fs/overlayfs/super.c:1088 [inline]
 ovl_get_workdir fs/overlayfs/super.c:1191 [inline]
 ovl_fill_super+0xc27/0x2736 fs/overlayfs/super.c:1611
 mount_nodev+0x6b/0xf0 fs/super.c:1461
 ovl_mount+0x36/0x50 fs/overlayfs/super.c:1712
 legacy_get_tree+0x7e/0xf0 fs/fs_context.c:647
 vfs_get_tree+0x56/0x1a0 fs/super.c:1545
 do_new_mount fs/namespace.c:2822 [inline]
 do_mount+0x1004/0x14f0 fs/namespace.c:3142
 ksys_mount+0xe8/0x160 fs/namespace.c:3351
 __do_sys_mount fs/namespace.c:3365 [inline]
 __se_sys_mount fs/namespace.c:3362 [inline]
 __x64_sys_mount+0x70/0x90 fs/namespace.c:3362
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffff888125093880 of 8 bytes by task 25343 on cpu 0:
 other_inode_match+0x6b/0x5c0 fs/ext4/inode.c:4820
 find_inode_nowait+0x135/0x160 fs/inode.c:1437
 ext4_update_other_inodes_time fs/ext4/inode.c:4868 [inline]
 ext4_do_update_inode fs/ext4/inode.c:4994 [inline]
 ext4_mark_iloc_dirty+0x12a8/0x1580 fs/ext4/inode.c:5547
 ext4_mark_inode_dirty+0xe9/0x420 fs/ext4/inode.c:5740
 ext4_add_nondir+0xbe/0x190 fs/ext4/namei.c:2563
 ext4_symlink+0x629/0x9b0 fs/ext4/namei.c:3344
 vfs_symlink fs/namei.c:4131 [inline]
 vfs_symlink+0x218/0x310 fs/namei.c:4117
 do_symlinkat+0x1a5/0x1e0 fs/namei.c:4158
 __do_sys_symlink fs/namei.c:4177 [inline]
 __se_sys_symlink fs/namei.c:4175 [inline]
 __x64_sys_symlink+0x3f/0x50 fs/namei.c:4175
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 25343 Comm: syz-executor.2 Not tainted 5.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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