From: Thorsten Blum <thorsten.blum@linux.dev>
To: Jason Wessel <jason.wessel@windriver.com>,
Daniel Thompson <danielt@kernel.org>,
Douglas Anderson <dianders@chromium.org>,
Nir Lichtman <nir@lichtman.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Yuran Pereira <yuran.pereira@hotmail.com>
Cc: linux-hardening@vger.kernel.org,
Thorsten Blum <thorsten.blum@linux.dev>,
Daniel Thompson <daniel@riscstar.com>,
kgdb-bugreport@lists.sourceforge.net,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 3/4] kdb: Replace deprecated strcpy() with memcpy() in parse_grep()
Date: Tue, 19 Aug 2025 11:59:05 +0200 [thread overview]
Message-ID: <20250819095915.711085-3-thorsten.blum@linux.dev> (raw)
In-Reply-To: <20250819095915.711085-1-thorsten.blum@linux.dev>
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>
---
kernel/debug/kdb/kdb_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 7a4d2d4689a5..cdf91976eb7c 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;
}
--
2.50.1
next prev parent reply other threads:[~2025-08-19 9:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-19 9:59 [PATCH v2 1/4] kdb: Replace deprecated strcpy() with memcpy() in kdb_strdup() Thorsten Blum
2025-08-19 9:59 ` [PATCH v2 2/4] kdb: Replace deprecated strcpy() with memmove() in vkdb_printf() Thorsten Blum
2025-08-19 9:59 ` Thorsten Blum [this message]
2025-08-19 9:59 ` [PATCH v2 4/4] kdb: Replace deprecated strcpy() with helper function in kdb_defcmd() Thorsten Blum
2025-09-08 10:28 ` Thorsten Blum
2025-09-26 14:59 ` [PATCH v2 1/4] kdb: Replace deprecated strcpy() with memcpy() in kdb_strdup() Daniel Thompson
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