================================================================== BUG: KCSAN: data-race in munlock_vma_pages_range / try_to_unmap_one write to 0xffff88812455d590 of 8 bytes by task 6784 on cpu 0: munlock_vma_pages_range+0x52/0x430 mm/mlock.c:423 munlock_vma_pages_all mm/internal.h:367 [inline] exit_mmap+0x128/0x400 mm/mmap.c:3192 __mmput+0x27/0x1c0 kernel/fork.c:1096 mmput+0x3d/0x50 kernel/fork.c:1117 exit_mm+0x360/0x450 kernel/exit.c:502 do_exit+0x3ff/0x1560 kernel/exit.c:813 do_group_exit+0x19b/0x1a0 kernel/exit.c:923 __do_sys_exit_group+0xb/0x10 kernel/exit.c:934 __se_sys_exit_group+0x5/0x10 kernel/exit.c:932 __x64_sys_exit_group+0x16/0x20 kernel/exit.c:932 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88812455d590 of 8 bytes by task 6794 on cpu 1: try_to_unmap_one+0xb2/0x1320 mm/rmap.c:1409 rmap_walk_file+0x1f9/0x300 mm/rmap.c:1936 rmap_walk mm/rmap.c:1954 [inline] try_to_munlock+0x8f/0xd0 mm/rmap.c:1805 __munlock_isolated_page mm/mlock.c:121 [inline] __munlock_pagevec+0x95d/0xb50 mm/mlock.c:321 munlock_vma_pages_range+0x3d8/0x430 mm/mlock.c:474 munlock_vma_pages_all mm/internal.h:367 [inline] exit_mmap+0x128/0x400 mm/mmap.c:3192 __mmput+0x27/0x1c0 kernel/fork.c:1096 mmput+0x3d/0x50 kernel/fork.c:1117 exit_mm+0x360/0x450 kernel/exit.c:502 do_exit+0x3ff/0x1560 kernel/exit.c:813 do_group_exit+0x19b/0x1a0 kernel/exit.c:923 __do_sys_exit_group+0xb/0x10 kernel/exit.c:934 __se_sys_exit_group+0x5/0x10 kernel/exit.c:932 __x64_sys_exit_group+0x16/0x20 kernel/exit.c:932 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: 1 PID: 6794 Comm: syz-executor.3 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================