================================================================== BUG: KCSAN: data-race in ext4_mark_iloc_dirty / ext4_orphan_del write to 0xffff888104ac903c of 4 bytes by task 25119 on cpu 1: ext4_orphan_del+0x579/0x730 fs/ext4/orphan.c:296 ext4_handle_inode_extension fs/ext4/file.c:353 [inline] ext4_dio_write_iter fs/ext4/file.c:574 [inline] ext4_file_write_iter+0x112d/0x11f0 fs/ext4/file.c:678 call_write_iter include/linux/fs.h:2163 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0x7bc/0x900 fs/read_write.c:594 ksys_write+0xd9/0x190 fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __x64_sys_write+0x3e/0x50 fs/read_write.c:656 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 0xffff888104ac903c of 4 bytes by task 516 on cpu 0: ext4_do_update_inode fs/ext4/inode.c:5029 [inline] ext4_mark_iloc_dirty+0x87c/0x1700 fs/ext4/inode.c:5683 __ext4_mark_inode_dirty+0x4ec/0x5c0 fs/ext4/inode.c:5879 ext4_truncate+0x91e/0xa80 fs/ext4/inode.c:4227 ext4_evict_inode+0xa54/0xdb0 fs/ext4/inode.c:287 evict+0x1c8/0x3c0 fs/inode.c:588 iput_final fs/inode.c:1664 [inline] iput+0x430/0x580 fs/inode.c:1690 dentry_unlink_inode+0x273/0x290 fs/dcache.c:376 d_delete+0x78/0xe0 fs/dcache.c:2505 vfs_rmdir+0x2e6/0x300 fs/namei.c:3984 do_rmdir+0x18d/0x330 fs/namei.c:4032 __do_sys_rmdir fs/namei.c:4051 [inline] __se_sys_rmdir fs/namei.c:4049 [inline] __x64_sys_rmdir+0x2c/0x30 fs/namei.c:4049 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: 0x00000522 -> 0x00000514 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 516 Comm: syz-executor.3 Tainted: G W 5.15.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================