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BUG: KCSAN: data-race in __ext4_update_other_inode_time / d_instantiate_new

write to 0xffff8881260dd650 of 8 bytes by task 2787 on cpu 0:
 d_instantiate_new+0x99/0xe0 fs/dcache.c:2057
 ext4_add_nondir+0x15e/0x180 fs/ext4/namei.c:2714
 ext4_symlink+0x4a5/0x6f0 fs/ext4/namei.c:3363
 vfs_symlink+0x18a/0x280 fs/namei.c:4297
 do_symlinkat+0xe2/0x330 fs/namei.c:4326
 __do_sys_symlinkat fs/namei.c:4343 [inline]
 __se_sys_symlinkat fs/namei.c:4340 [inline]
 __x64_sys_symlinkat+0x5e/0x70 fs/namei.c:4340
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff8881260dd650 of 8 bytes by task 2786 on cpu 1:
 inode_is_dirtytime_only include/linux/fs.h:2343 [inline]
 __ext4_update_other_inode_time+0x45/0x540 fs/ext4/inode.c:5047
 ext4_update_other_inodes_time fs/ext4/inode.c:5090 [inline]
 ext4_do_update_inode fs/ext4/inode.c:5139 [inline]
 ext4_mark_iloc_dirty+0x4c6/0x860 fs/ext4/inode.c:5724
 ext4_xattr_set_handle+0xad9/0xbd0 fs/ext4/xattr.c:2402
 ext4_initxattrs+0x66/0xb0 fs/ext4/xattr_security.c:44
 security_inode_init_security+0x1b8/0x280 security/security.c:1116
 ext4_init_security+0x30/0x40 fs/ext4/xattr_security.c:58
 __ext4_new_inode+0x24c1/0x2700 fs/ext4/ialloc.c:1325
 ext4_symlink+0x2ba/0x6f0 fs/ext4/namei.c:3293
 vfs_symlink+0x18a/0x280 fs/namei.c:4297
 do_symlinkat+0xe2/0x330 fs/namei.c:4326
 __do_sys_symlinkat fs/namei.c:4343 [inline]
 __se_sys_symlinkat fs/namei.c:4340 [inline]
 __x64_sys_symlinkat+0x5e/0x70 fs/namei.c:4340
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x0000000000008008 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 2786 Comm: syz-executor.0 Not tainted 5.18.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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