From: Thorsten Blum <thorsten.blum@linux.dev>
Date: Tue, 19 Aug 2025 09:59:05 +0000 (+0200)
Subject: kdb: Replace deprecated strcpy() with memcpy() in parse_grep()
X-Git-Tag: v6.18-rc1~94^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5b26f1a3146454a24dbcb8b1cdae5d507f7432e6;p=thirdparty%2Fkernel%2Fstable.git

kdb: Replace deprecated strcpy() with memcpy() in parse_grep()

strcpy() is deprecated; use memcpy() instead.

We can safely use memcpy() because we already know the length of the
source string 'cp' and that it is guaranteed to be NUL-terminated within
the first KDB_GREP_STRLEN bytes.

Link: https://github.com/KSPP/linux/issues/88
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Daniel Thompson (RISCstar) <danielt@kernel.org>
---

diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 7a4d2d4689a57..cdf91976eb7cd 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -860,7 +860,7 @@ static void parse_grep(const char *str)
 		kdb_printf("search string too long\n");
 		return;
 	}
-	strcpy(kdb_grep_string, cp);
+	memcpy(kdb_grep_string, cp, len + 1);
 	kdb_grepping_flag++;
 	return;
 }