From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-189.mta1.migadu.com (out-189.mta1.migadu.com [95.215.58.189]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F86231CA7C for ; Tue, 19 Aug 2025 09:59:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.189 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755597594; cv=none; b=HsAprgdj0DoLf2O+DCg9kzRAT4qZMS7sDKHjmPCgPYQmVOtenxSFFCeh0Xn2oJhs9e3yMz83P8Zz0LpUE3Iip0dzZhPTlHcH4HzFZX0gBTHNGwm6LiQrmnFV8H2cC24RikEcgThv7vIi49pr8MU7XPwen1jjk6UpAgtXSwEH2Mw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755597594; c=relaxed/simple; bh=5uC7avEAroUHszmN3378fl0744kkJoutyK9Vg/4xQ7A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EDkCUOEGJGiMwJcLZ4yJXv6b+yF7uYpHjZJYrDeVKyBa04tri1mqcN04zqWAmhFs0uCjPiVrkZEn1TUeNb45Wi88YwEv4K6/SeAjZOAV/G1Xc+ltL0Jhxj6tD0UFuJJzDrIMXiZLquLgS8tkKeJUr7FiVZB+DDxqTct9bp0fWCI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=TLyPRw5r; arc=none smtp.client-ip=95.215.58.189 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="TLyPRw5r" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1755597590; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ApYXekxvMIeIP2temzcHX8ZqK3v75ye22TOwGTEGqr8=; b=TLyPRw5rgsZ5pQ05QxWd+0/EVWUUMS4WdOOTwxjmlL5ilB0nUMz5mGt6R2pGFTdSwL2OI9 fyZ7JOFcDvbQXioB6rJciWmnSkVkOa36BcNEmRpRqHe3EJl5ts9APMPnvpwt61n3t1Q787 WjycWsR7pren36s+CiXia0XTPsSDN8Q= From: Thorsten Blum To: Jason Wessel , Daniel Thompson , Douglas Anderson , Nir Lichtman , Greg Kroah-Hartman , Yuran Pereira Cc: linux-hardening@vger.kernel.org, Thorsten Blum , Daniel Thompson , 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 Message-ID: <20250819095915.711085-3-thorsten.blum@linux.dev> In-Reply-To: <20250819095915.711085-1-thorsten.blum@linux.dev> References: <20250819095915.711085-1-thorsten.blum@linux.dev> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT 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 Signed-off-by: Thorsten Blum --- 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