================================================================== BUG: KCSAN: data-race in getrusage / vms_clear_ptes write to 0xffff8881043dd1b0 of 8 bytes by task 10020 on cpu 0: update_hiwater_rss include/linux/mm.h:2631 [inline] vms_clear_ptes+0x18f/0x2d0 mm/vma.c:1222 vms_clean_up_area mm/vma.c:1242 [inline] __mmap_prepare mm/vma.c:2388 [inline] __mmap_region mm/vma.c:2607 [inline] mmap_region+0x6e8/0x1580 mm/vma.c:2692 do_mmap+0x9b3/0xbe0 mm/mmap.c:561 vm_mmap_pgoff+0x17a/0x2e0 mm/util.c:579 ksys_mmap_pgoff+0x268/0x310 mm/mmap.c:607 x64_sys_call+0x1602/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:10 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff8881043dd1b0 of 8 bytes by task 10023 on cpu 1: get_mm_hiwater_rss include/linux/mm.h:2618 [inline] setmax_mm_hiwater_rss include/linux/mm.h:2648 [inline] getrusage+0xa52/0xbb0 kernel/sys.c:1877 io_sq_thread+0x5dd/0x1180 io_uring/sqpoll.c:319 ret_from_fork+0xda/0x150 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 value changed: 0x00000000000015f3 -> 0x0000000000001af3 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 10023 Comm: iou-sqp-10020 Not tainted 6.16.0-rc1-syzkaller-00239-g08215f5486ec #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 ==================================================================