==================================================================
BUG: KCSAN: data-race in __mark_inode_dirty / __mark_inode_dirty

write to 0xffff888104ff1400 of 8 bytes by task 21299 on cpu 1:
 __mark_inode_dirty+0x250/0x7d0 fs/fs-writeback.c:2483
 mark_inode_dirty include/linux/fs.h:2380 [inline]
 dquot_alloc_space include/linux/quotaops.h:319 [inline]
 dquot_alloc_block include/linux/quotaops.h:336 [inline]
 ext4_xattr_block_set+0xd9a/0x1be0 fs/ext4/xattr.c:2078
 ext4_xattr_set_handle+0x8a7/0xbf0 fs/ext4/xattr.c:2456
 ext4_xattr_set+0x15d/0x230 fs/ext4/xattr.c:2558
 ext4_xattr_trusted_set+0x3c/0x50 fs/ext4/xattr_trusted.c:38
 __vfs_setxattr+0x2de/0x300 fs/xattr.c:201
 __vfs_setxattr_noperm+0xed/0x3e0 fs/xattr.c:235
 __vfs_setxattr_locked+0x1af/0x1d0 fs/xattr.c:296
 vfs_setxattr+0x140/0x280 fs/xattr.c:322
 do_setxattr fs/xattr.c:630 [inline]
 setxattr+0x1bc/0x230 fs/xattr.c:653
 path_setxattr+0xf5/0x1a0 fs/xattr.c:672
 __do_sys_lsetxattr fs/xattr.c:695 [inline]
 __se_sys_lsetxattr fs/xattr.c:691 [inline]
 __x64_sys_lsetxattr+0x6a/0x80 fs/xattr.c:691
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff888104ff1400 of 8 bytes by task 21300 on cpu 0:
 __mark_inode_dirty+0x199/0x7d0 fs/fs-writeback.c:2474
 generic_update_time fs/inode.c:1905 [inline]
 inode_update_time fs/inode.c:1918 [inline]
 touch_atime+0x22b/0x340 fs/inode.c:1990
 pick_link+0x30c/0x7b0 fs/namei.c:1787
 step_into+0x71b/0x800 fs/namei.c:1871
 walk_component+0x164/0x230 fs/namei.c:2007
 lookup_last fs/namei.c:2458 [inline]
 path_lookupat+0x10a/0x2a0 fs/namei.c:2482
 filename_lookup+0x126/0x300 fs/namei.c:2511
 vfs_statx+0xa2/0x320 fs/stat.c:244
 vfs_fstatat+0xcd/0x100 fs/stat.c:304
 __do_sys_newfstatat fs/stat.c:468 [inline]
 __se_sys_newfstatat+0x58/0x260 fs/stat.c:462
 __x64_sys_newfstatat+0x55/0x60 fs/stat.c:462
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000000000000000 -> 0x0000000000000007

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 21300 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-00034-g8d3dea210042 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
==================================================================