bpf: Add missing newline characters in verifier error messages

Newline characters are added in two verifier error messages,
refactored in Commit afbf21dce668 ("bpf: Support readonly/readwrite
buffers in verifier"). This way, they do not mix with
messages afterwards.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200728221801.1090349-1-yhs@fb.com

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 88bb25d..b6ccfce 100644 (file)
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -3069,7 +3069,7 @@ static int __check_buffer_access(struct bpf_verifier_env *env,
 {
        if (off < 0) {
                verbose(env,
-                       "R%d invalid %s buffer access: off=%d, size=%d",
+                       "R%d invalid %s buffer access: off=%d, size=%d\n",
                        regno, buf_info, off, size);
                return -EACCES;
        }
@@ -3078,7 +3078,7 @@ static int __check_buffer_access(struct bpf_verifier_env *env,
 
                tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
                verbose(env,
-                       "R%d invalid variable buffer offset: off=%d, var_off=%s",
+                       "R%d invalid variable buffer offset: off=%d, var_off=%s\n",
                        regno, off, tn_buf);
                return -EACCES;
        }