syzbot

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BUG: KCSAN: data-race in ext4_fill_raw_inode / ext4_orphan_del

write to 0xffff88811c09cadc of 4 bytes by task 1813 on cpu 1:
 ext4_orphan_del+0x579/0x730 fs/ext4/orphan.c:296
 ext4_evict_inode+0xb9f/0xf10 fs/ext4/inode.c:318
 evict+0x1aa/0x410 fs/inode.c:590
 iput_final fs/inode.c:1670 [inline]
 iput+0x3ef/0x580 fs/inode.c:1696
 dentry_unlink_inode+0x23d/0x250 fs/dcache.c:376
 d_delete+0x78/0xa0 fs/dcache.c:2505
 vfs_rmdir+0x2bf/0x2e0 fs/namei.c:3982
 do_rmdir+0x18d/0x330 fs/namei.c:4030
 __do_sys_rmdir fs/namei.c:4049 [inline]
 __se_sys_rmdir fs/namei.c:4047 [inline]
 __x64_sys_rmdir+0x2c/0x30 fs/namei.c:4047
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff88811c09cadc of 4 bytes by task 1836 on cpu 0:
 ext4_fill_raw_inode+0x2b4/0xea0 fs/ext4/inode.c:4309
 ext4_do_update_inode fs/ext4/inode.c:5094 [inline]
 ext4_mark_iloc_dirty+0x364/0x890 fs/ext4/inode.c:5694
 __ext4_mark_inode_dirty+0x4ec/0x5f0 fs/ext4/inode.c:5890
 ext4_dirty_inode+0x86/0xa0 fs/ext4/inode.c:5919
 __mark_inode_dirty+0x72/0x6c0 fs/fs-writeback.c:2399
 mark_inode_dirty_sync include/linux/fs.h:2456 [inline]
 dquot_free_space include/linux/quotaops.h:382 [inline]
 dquot_free_block include/linux/quotaops.h:392 [inline]
 ext4_free_blocks+0x157d/0x1b00 fs/ext4/mballoc.c:6084
 ext4_remove_blocks+0x7fb/0xa10 fs/ext4/extents.c:2541
 ext4_ext_rm_leaf+0x6a7/0xef0 fs/ext4/extents.c:2707
 ext4_ext_remove_space+0x956/0x14c0 fs/ext4/extents.c:2955
 ext4_ext_truncate+0xfe/0x170 fs/ext4/extents.c:4417
 ext4_truncate+0x76e/0xae0 fs/ext4/inode.c:4201
 ext4_evict_inode+0xad5/0xf10 fs/ext4/inode.c:287
 evict+0x1aa/0x410 fs/inode.c:590
 iput_final fs/inode.c:1670 [inline]
 iput+0x3ef/0x580 fs/inode.c:1696
 dentry_unlink_inode+0x23d/0x250 fs/dcache.c:376
 d_delete+0x78/0xa0 fs/dcache.c:2505
 vfs_rmdir+0x2bf/0x2e0 fs/namei.c:3982
 do_rmdir+0x18d/0x330 fs/namei.c:4030
 __do_sys_rmdir fs/namei.c:4049 [inline]
 __se_sys_rmdir fs/namei.c:4047 [inline]
 __x64_sys_rmdir+0x2c/0x30 fs/namei.c:4047
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x000004eb -> 0x000004fd

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 1836 Comm: syz-executor.3 Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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