================================================================== BUG: KCSAN: data-race in exec_mmap / mm_update_next_owner write to 0xffff888129d4f220 of 8 bytes by task 11813 on cpu 0: exec_mmap+0x155/0x3a0 fs/exec.c:1016 begin_new_exec+0x7a2/0x1010 fs/exec.c:1300 load_elf_binary+0x62a/0x1970 fs/binfmt_elf.c:1002 search_binary_handler fs/exec.c:1731 [inline] exec_binprm+0x1d9/0x800 fs/exec.c:1772 bprm_execve+0x379/0x4e0 fs/exec.c:1841 kernel_execve+0x65f/0x6c0 fs/exec.c:2006 call_usermodehelper_exec_async+0x1a6/0x250 kernel/umh.c:112 ret_from_fork+0x1f/0x30 read to 0xffff888129d4f220 of 8 bytes by task 11814 on cpu 1: mm_update_next_owner+0x233/0x4b0 kernel/exit.c:435 exit_mm+0xd3/0x170 kernel/exit.c:509 do_exit+0x525/0x16e0 kernel/exit.c:782 __x64_sys_exit_group+0x0/0x20 kernel/exit.c:925 __do_sys_exit_group kernel/exit.c:936 [inline] __se_sys_exit_group kernel/exit.c:934 [inline] __x64_sys_exit_group+0x1b/0x20 kernel/exit.c:934 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: 0x0000000000000000 -> 0xffff88811d009000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 11814 Comm: syz-executor.1 Not tainted 5.19.0-syzkaller-10895-g6614a3c3164a-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 ==================================================================