From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-179.mta1.migadu.com (out-179.mta1.migadu.com [95.215.58.179]) (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 E5E893203B5 for ; Tue, 19 Aug 2025 09:59:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755597598; cv=none; b=BhivPOw6x+2p8pWoBjdkXv3TfnWPRuIOfDWNYSPp9KNKt/Zcq0IcmeL/+qSgLHZt/8Vm1WwXUr89DhAXFmcB+8rvZYSPxPST9i2hMnY0Rftxw/YngEOMy1sv+ObvEkIQfYK60RfSpeuu3+FA0cs/OcNZyciCrq738sae0z7FHQU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755597598; c=relaxed/simple; bh=Vhlp670jIoJlZ3xHQzXSWtWPJcSriIWz20Lo5ruwtIM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=TbVsZk2w4Z6uxucTxlmtG7wdLx3HBNC+fDutg1E8owO6icbn1XivV2fUyOBHXOOFflKlXiOq8527Iva0XsjNwFTKytrF6LEdIBYuPbjrzew5r4ozbH3/Xsn/lQSezSwK4sKQogUNc1nuaUZhtxnE6iERbNsi+W32SMFr1p/MoNA= 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=B3ERXQtg; arc=none smtp.client-ip=95.215.58.179 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="B3ERXQtg" 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=1755597585; 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; bh=zavKxT3WRsPMSCRKqhVeovVHLiznL9SJiEUmezaibh0=; b=B3ERXQtgR9QaHzPZK4L85kMoLc23fmV36yK6hRwbj9VtRdbf4YgDx3+3a+VuJQEgexq9Rd 1q8XNQ3aF3q/dquGQZxrcxiDZS4tUjS2GWUmQFrDh2913AEBVrkyMA+N8eMuqJvQcmRMSM g+hZKcCi5f3We9MVdA7cXnkWc+Sp5OA= From: Thorsten Blum To: Jason Wessel , Daniel Thompson , Douglas Anderson , "Dr. David Alan Gilbert" , Zhang Heng Cc: linux-hardening@vger.kernel.org, Thorsten Blum , kgdb-bugreport@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/4] kdb: Replace deprecated strcpy() with memcpy() in kdb_strdup() Date: Tue, 19 Aug 2025 11:59:03 +0200 Message-ID: <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. Link: https://github.com/KSPP/linux/issues/88 Reviewed-by: Douglas Anderson Signed-off-by: Thorsten Blum --- kernel/debug/kdb/kdb_support.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c index 05b137e7dcb9..d36281142fa1 100644 --- a/kernel/debug/kdb/kdb_support.c +++ b/kernel/debug/kdb/kdb_support.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include "kdb_private.h" @@ -246,11 +247,12 @@ void kdb_symbol_print(unsigned long addr, const kdb_symtab_t *symtab_p, */ char *kdb_strdup(const char *str, gfp_t type) { - int n = strlen(str)+1; + size_t n = strlen(str) + 1; char *s = kmalloc(n, type); if (!s) return NULL; - return strcpy(s, str); + memcpy(s, str, n); + return s; } /* -- 2.50.1