================================================================== BUG: KCSAN: data-race in __mark_inode_dirty / __mark_inode_dirty write to 0xffff88810a2da6f0 of 8 bytes by task 26670 on cpu 1: __mark_inode_dirty+0x250/0x7d0 fs/fs-writeback.c:2461 generic_update_time fs/inode.c:1900 [inline] inode_update_time fs/inode.c:1913 [inline] touch_atime+0x1e2/0x310 fs/inode.c:1985 pick_link+0x30c/0x7b0 fs/namei.c:1784 step_into+0x71b/0x800 fs/namei.c:1868 open_last_lookups fs/namei.c:3583 [inline] path_openat+0x10bb/0x1d10 fs/namei.c:3790 do_filp_open+0xf6/0x200 fs/namei.c:3820 do_sys_openat2+0xab/0x110 fs/open.c:1407 do_sys_open fs/open.c:1422 [inline] __do_sys_openat fs/open.c:1438 [inline] __se_sys_openat fs/open.c:1433 [inline] __x64_sys_openat+0xf3/0x120 fs/open.c:1433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff88810a2da6f0 of 8 bytes by task 26669 on cpu 0: __mark_inode_dirty+0x58/0x7d0 fs/fs-writeback.c:2412 generic_update_time fs/inode.c:1900 [inline] inode_update_time fs/inode.c:1913 [inline] touch_atime+0x1e2/0x310 fs/inode.c:1985 pick_link+0x30c/0x7b0 fs/namei.c:1784 step_into+0x71b/0x800 fs/namei.c:1868 open_last_lookups fs/namei.c:3583 [inline] path_openat+0x10bb/0x1d10 fs/namei.c:3790 do_filp_open+0xf6/0x200 fs/namei.c:3820 do_sys_openat2+0xab/0x110 fs/open.c:1407 do_sys_open fs/open.c:1422 [inline] __do_sys_openat fs/open.c:1438 [inline] __se_sys_openat fs/open.c:1433 [inline] __x64_sys_openat+0xf3/0x120 fs/open.c:1433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x0000000000000000 -> 0x0000000000000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 26669 Comm: syz-executor.4 Not tainted 6.5.0-rc6-syzkaller-00038-g16931859a650 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 ==================================================================