KCSAN: data-race in bprm_execve / copy

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in bprm_execve / copy_process fs mm	6	1	1756d	1756d	0/29	auto-closed as invalid on 2020/10/29 15:12
upstream	KCSAN: data-race in bprm_execve / copy_process (4) fs mm	6	1	1384d	1384d	0/29	auto-closed as invalid on 2021/11/06 00:03
upstream	KCSAN: data-race in bprm_execve / copy_process (2) fs mm	6	2	1648d	1676d	0/29	auto-closed as invalid on 2021/02/14 15:47

================================================================== BUG: KCSAN: data-race in bprm_execve / copy_process write to 0xffff888143ebfc10 of 4 bytes by task 12006 on cpu 1: bprm_execve+0x4c6/0x530 fs/exec.c:1854 do_execveat_common+0x63b/0x700 fs/exec.c:1920 do_execveat fs/exec.c:1999 [inline] __do_sys_execveat fs/exec.c:2075 [inline] __se_sys_execveat fs/exec.c:2067 [inline] __x64_sys_execveat+0x7e/0x90 fs/exec.c:2067 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888143ebfc10 of 4 bytes by task 12005 on cpu 0: copy_fs kernel/fork.c:1447 [inline] copy_process+0xe99/0x2f70 kernel/fork.c:2110 kernel_clone+0x14b/0x680 kernel/fork.c:2509 __do_sys_clone kernel/fork.c:2626 [inline] __se_sys_clone kernel/fork.c:2610 [inline] __x64_sys_clone+0xb4/0xe0 kernel/fork.c:2610 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000001 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 12005 Comm: syz-executor.1 Not tainted 5.14.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================