Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 4D75E2417DE; Thu, 17 Sep 2026 18:50:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789671008; cv=none; b=Tlu67FlQZ9g/EMq9PvJ3j7kHSb2siHHaqJt59rk2PmoWRvjqNHaQGnJ3hw4pgmKG5NVoeVNElmmlR+yZq0B/0mYOWAAiUGgmCuBlvPSFa9/9Uiq8obUCyAfgvqOoLqAulTmOGcmsL23nyamrP5Elg+bfdM0Qh8AWUGX8Xd4OlUw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789671008; c=relaxed/simple; bh=cg2tDUuUFoJNDrE42mSgErQJ7kHBfSHp2TTcLsE2YzA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=queT+zSFXC3WsQkyce50tLpPBA1EzQJPTxHnNuub6YiZcBbnLlwFADmbW1gV9uW9Z3HgsMCbw7b8Ksrihr8HeTnM6Ec8ozaq2yqTvUEV2bLYNykth5d4Rz5fnXSPU99cnHYKhy/V8xl1Loq426b9pDOov3NoqkAUGCRwxzpwtvo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=KuIrA62i; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="KuIrA62i" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A68FB1F000FF; Thu, 17 Sep 2026 18:50:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789671007; bh=azEEzA2RkDmqs3DpgayJJtaYNqJai9I3AELc0C0YbGM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=KuIrA62iBfYNdDgVN2odzg3cIGYU22k3LxP/f27bCfPUqfyzP21R2Ncjeu+FUQqoV a7BpauGzqZ9ljOiKzz+m05EwQ9mQAw5lrYZ3expzYxp9vw8YokXXU0JNuMTBvG8SoF tfxoy0EbSyPsrzEwmwo57bYao21i9U6XvJSzDuks= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thorsten Blum , Madhavan Srinivasan Subject: [PATCH 6.12 0802/1102] powerpc/ps3: Fix repository.c build failure Date: Thu, 17 Sep 2026 16:12:25 +0100 Message-ID: <20260917151600.612183933@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151539.408551884@linuxfoundation.org> References: <20260917151539.408551884@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thorsten Blum commit 5ba79d37403d86082ab4083b0f51ec3008a942cb upstream. GCC fails to build ps3_defconfig with the following errors: arch/powerpc/platforms/ps3/repository.c: In function ‘make_first_field.constprop’: arch/powerpc/platforms/ps3/repository.c:78:9: error: ‘strnlen’ specified bound 8 exceeds source size 3 [-Werror=stringop-overread] 78 | memcpy((char *)&n, text, strnlen(text, sizeof(n))); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/platforms/ps3/repository.c: In function ‘make_first_field.constprop’: arch/powerpc/platforms/ps3/repository.c:78:9: error: ‘strnlen’ specified bound 8 exceeds source size 4 [-Werror=stringop-overread] 78 | memcpy((char *)&n, text, strnlen(text, sizeof(n))); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The current use of strnlen(text, sizeof(n)) triggers -Wstringop-overread when text is a short string literal that is smaller than sizeof(n), such as "bi" or "bus". Use strlen(text) instead and clamp the copy length to sizeof(n) before memcpy(). Drop the redundant char * cast while at it. Fixes: f94a84a09148 ("powerpc/ps3: refactor strncpy usage") Cc: stable@vger.kernel.org Signed-off-by: Thorsten Blum Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20260703165834.137242-2-thorsten.blum@linux.dev Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/platforms/ps3/repository.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/arch/powerpc/platforms/ps3/repository.c +++ b/arch/powerpc/platforms/ps3/repository.c @@ -6,6 +6,8 @@ * Copyright 2006 Sony Corp. */ +#include + #include #include "platform.h" @@ -74,8 +76,9 @@ static void _dump_node(unsigned int lpar static u64 make_first_field(const char *text, u64 index) { u64 n = 0; + size_t len = min(strlen(text), sizeof(n)); - memcpy((char *)&n, text, strnlen(text, sizeof(n))); + memcpy(&n, text, len); return PS3_VENDOR_ID_NONE + (n >> 32) + index; }