================================================================== BUG: KCSAN: data-race in copy_process / show_stat read-write to 0xffffffff86dfe868 of 8 bytes by task 14781 on cpu 0: copy_process+0x1fa5/0x2100 kernel/fork.c:2489 kernel_clone+0x169/0x560 kernel/fork.c:2681 __do_sys_clone kernel/fork.c:2822 [inline] __se_sys_clone kernel/fork.c:2806 [inline] __x64_sys_clone+0xdf/0x110 kernel/fork.c:2806 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffffffff86dfe868 of 8 bytes by task 14782 on cpu 1: show_stat+0xba7/0xcf0 fs/proc/stat.c:207 seq_read_iter+0x2bc/0x8f0 fs/seq_file.c:230 proc_reg_read_iter+0xe8/0x180 fs/proc/inode.c:301 call_read_iter include/linux/fs.h:2183 [inline] generic_file_splice_read+0xe3/0x290 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x25a/0x5f0 fs/splice.c:865 do_splice_direct+0x104/0x180 fs/splice.c:974 do_sendfile+0x3b8/0x950 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1317 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0xbd/0x150 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00000000000134c3 -> 0x00000000000134c4 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 14782 Comm: syz-executor.3 Not tainted 6.2.0-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 ==================================================================