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 C27AD4E06F5; Thu, 17 Sep 2026 17:29:42 +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=1789666183; cv=none; b=FjOF4K+3sM1MjYhJLkZYXRzMJVY+JqMkUK542FD9v3WyqvNpfkl7F5Lo6LoNaCs1GMvUgZ8nCb0vhrSY/APbXrQ26TfAiOTtvEa3vI6hG03spKm1DJZNZty+UHxvVt4CAGF8tjAyWlL22Ni5VjHLn7buLE37SwcpF2kLnMgJKFg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789666183; c=relaxed/simple; bh=uOMTN0u6Lrg1ubVBdXOUI7ZpzmHGf+5A+CCYCX7ShOA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Z7D39XkFhhUagk1LK0pv+QokHpwMlekjkKex+SdO0sHILgJkSnyVOJhe1KB6ALPkvqyJcp+rm8cWdFLCGWoBr4PlAXvh2N9bJJRXZV7A5xWxfK97kTarsrbB6DJLuGWZaIE0tPL1lGG1jYbPT21bWKMhmYxVBhs/F06XEbrkvxA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=s0vj4HGm; 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="s0vj4HGm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25C561F000FF; Thu, 17 Sep 2026 17:29:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789666182; bh=yVoJLLGvvrXcKnCxLNL6J//nVxTU4a7oQ0hhX+XfCqY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=s0vj4HGmSLZe6N4johZS7XeIsPRmVPFkys5uo45StcesoYiJNL0p/9iGH1Eb5ec8F NCtnmLiQUiOZXZC56Y05Ljej0uUOcphxaAZ3bDJutVlj/PyvuLSaFsd9ZrKTyou2GW HjhEL9tEh6sopN9365Z5+C0AMQ2amEt5EFkFIR7o= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thorsten Blum , Madhavan Srinivasan Subject: [PATCH 6.18 0953/1250] powerpc/ps3: Fix repository.c build failure Date: Thu, 17 Sep 2026 16:12:28 +0100 Message-ID: <20260917151617.850923539@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151551.901433442@linuxfoundation.org> References: <20260917151551.901433442@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 6.18-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; }