Using strncpy() on NUL-terminated strings is considered deprecated[1], replace it with strscpy_pad(). [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings Signed-off-by: Yuntao Wang <ytcoode@xxxxxxxxx> --- kernel/bpf/helpers.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index ae64110a98b5..d03b28761a67 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -225,13 +225,7 @@ BPF_CALL_2(bpf_get_current_comm, char *, buf, u32, size) if (unlikely(!task)) goto err_clear; - strncpy(buf, task->comm, size); - - /* Verifier guarantees that size > 0. For task->comm exceeding - * size, guarantee that buf is %NUL-terminated. Unconditionally - * done here to save the size test. - */ - buf[size - 1] = 0; + strscpy_pad(buf, task->comm, size); return 0; err_clear: memset(buf, 0, size); -- 2.35.1
