================================================================== BUG: KCSAN: data-race in getrusage / vms_clear_ptes write to 0xffff888138b04300 of 8 bytes by task 22674 on cpu 0: update_hiwater_rss include/linux/mm.h:2754 [inline] vms_clear_ptes+0x1a4/0x300 mm/vma.c:1150 vms_complete_munmap_vmas+0x17b/0x470 mm/vma.c:1200 do_vmi_align_munmap+0x379/0x3c0 mm/vma.c:1459 do_vmi_munmap+0x1eb/0x230 mm/vma.c:1507 __vm_munmap+0x196/0x270 mm/vma.c:2970 __do_sys_munmap mm/mmap.c:1084 [inline] __se_sys_munmap mm/mmap.c:1081 [inline] __x64_sys_munmap+0x36/0x40 mm/mmap.c:1081 x64_sys_call+0xe1b/0x2e10 arch/x86/include/generated/asm/syscalls_64.h:12 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888138b04300 of 8 bytes by task 22676 on cpu 1: get_mm_hiwater_rss include/linux/mm.h:2741 [inline] setmax_mm_hiwater_rss include/linux/mm.h:2771 [inline] getrusage+0xa17/0xb70 kernel/sys.c:1876 io_sq_thread+0x5e0/0x1140 io_uring/sqpoll.c:310 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 value changed: 0x00000000000016af -> 0x0000000000001736 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 22676 Comm: iou-sqp-22674 Not tainted 6.15.0-rc1-syzkaller-00333-g5aaaedb0cb54 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 ==================================================================