kdb: kdb_support: replace strcpy() by strscpy()

The strcpy() function is being deprecated. Replace it by the safer
strscpy() and fix the following Coverity warning:

"You might overrun the 129-character fixed-size string ks_namebuf
by copying name without checking the length."

Addresses-Coverity-ID: 138995 ("Copy into fixed size buffer")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>

diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c
index 50bf9b119bad04952c767451a4e29315b0234ab0..b8e6306e7e133d452dad4c5e46e4753439d4b448 100644 (file)
--- a/kernel/debug/kdb/kdb_support.c
+++ b/kernel/debug/kdb/kdb_support.c
@@ -192,7 +192,7 @@ int kallsyms_symbol_complete(char *prefix_name, int max_len)
 
        while ((name = kdb_walk_kallsyms(&pos))) {
                if (strncmp(name, prefix_name, prefix_len) == 0) {
-                       strcpy(ks_namebuf, name);
+                       strscpy(ks_namebuf, name, sizeof(ks_namebuf));
                        /* Work out the longest name that matches the prefix */
                        if (++number == 1) {
                                prev_len = min_t(int, max_len-1,