================================================================== BUG: KCSAN: data-race in do_timerfd_settime / do_timerfd_settime write to 0xffff88811e8265d4 of 1 bytes by task 4413 on cpu 1: timerfd_setup_cancel fs/timerfd.c:166 [inline] do_timerfd_settime+0x989/0xa70 fs/timerfd.c:476 __do_sys_timerfd_settime fs/timerfd.c:567 [inline] __se_sys_timerfd_settime fs/timerfd.c:558 [inline] __x64_sys_timerfd_settime+0xb5/0x140 fs/timerfd.c:558 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff88811e8265d4 of 1 bytes by task 4414 on cpu 0: timerfd_canceled fs/timerfd.c:153 [inline] timerfd_setup fs/timerfd.c:227 [inline] do_timerfd_settime+0x8a8/0xa70 fs/timerfd.c:519 __do_sys_timerfd_settime fs/timerfd.c:567 [inline] __se_sys_timerfd_settime fs/timerfd.c:558 [inline] __x64_sys_timerfd_settime+0xb5/0x140 fs/timerfd.c:558 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 4414 Comm: syz-executor.5 Tainted: G W 6.1.0-rc2-syzkaller-00487-gb72018ab8236-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 ==================================================================