================================================================== BUG: KCSAN: data-race in __ext4_update_other_inode_time / inode_io_list_del write to 0xffff888106a49358 of 8 bytes by task 1774 on cpu 1: inode_io_list_del_locked fs/fs-writeback.c:148 [inline] inode_io_list_del+0x10c/0x2f0 fs/fs-writeback.c:1127 evict+0xac/0x3c0 fs/inode.c:571 iput_final fs/inode.c:1660 [inline] iput+0x433/0x590 fs/inode.c:1686 do_unlinkat+0x293/0x4f0 fs/namei.c:4099 __do_sys_unlink fs/namei.c:4139 [inline] __se_sys_unlink fs/namei.c:4137 [inline] __x64_sys_unlink+0x2c/0x30 fs/namei.c:4137 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888106a49358 of 8 bytes by task 9678 on cpu 0: inode_is_dirtytime_only include/linux/fs.h:2423 [inline] __ext4_update_other_inode_time+0x48/0x5c0 fs/ext4/inode.c:4963 ext4_update_other_inodes_time fs/ext4/inode.c:5006 [inline] ext4_do_update_inode fs/ext4/inode.c:5135 [inline] ext4_mark_iloc_dirty+0x12b6/0x1750 fs/ext4/inode.c:5724 __ext4_mark_inode_dirty+0x4db/0x5b0 fs/ext4/inode.c:5918 ext4_dirty_inode+0x86/0xa0 fs/ext4/inode.c:5947 __mark_inode_dirty+0x77/0x6c0 fs/fs-writeback.c:2274 mark_inode_dirty include/linux/fs.h:2404 [inline] generic_write_end+0x157/0x180 fs/buffer.c:2223 ext4_da_write_end+0x59b/0x730 fs/ext4/inode.c:3110 generic_perform_write+0x23e/0x3a0 mm/filemap.c:3671 ext4_buffered_write_iter+0x2f2/0x3f0 fs/ext4/file.c:269 ext4_file_write_iter+0x2e7/0x11d0 fs/ext4/file.c:519 call_write_iter include/linux/fs.h:2114 [inline] new_sync_write fs/read_write.c:518 [inline] vfs_write+0x69d/0x770 fs/read_write.c:605 ksys_write+0xce/0x180 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x3e/0x50 fs/read_write.c:667 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 9678 Comm: syz-executor.5 Tainted: G W 5.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================