From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1268EFD0045 for ; Sun, 1 Mar 2026 01:52:47 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4fNlSY3FmGz2yFK; Sun, 01 Mar 2026 12:52:45 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.234.252.31 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1772329965; cv=none; b=dfEOH6NfgyIGnqfir9uCEwy3/g5lujiQvvu1WEU2D4iQTWIbkCtJXMthpMoUbLGxqVkdqPgEMkHh1OTKZjzaVkHi1sQ8kI+a3fhgmST9ds7xeevif4DWov9V+ARHjz4aBiPJfDDjw5AzHVulT4XcTFi66ihagyZWiRwxjSq0HXnl8Rxn73qJ4EP6yWb1w4Mku2Pz+SAt3JDJoOUWQyddCC+98kClE78UgF+qtP25Dvj/6P7arACS0/0mGfcgs1PtTTDqHEft1+xjnQ6AXL0fhTig79jm0xf35mQ8KuzGSLuLF5kJ+0H+350im+mLASe4xPXCpS7NI/xZI+buu/n5AA== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1772329965; c=relaxed/relaxed; bh=2UA52DH7AQWImbDJ0IDDRN4XTAB1urMf2mA2nEBczJI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=VtbtDmfWTgQnSwUHOKtXV2vnY6V3wn7Oi/u4aalwpCtOiIlgYj46tFeOtcf3wN/V4Gz8hMCtbKztZ4hnjF5DVBvgO42Flhrh0s86HiPb2LD1XaLK1aMSIuXU40Dy1LVw4cz4t/TEGY6gz9QpFpAFJyborQzkI3ATp4imcS91rj3jrXuzCkGCNjgwEzk583zfTSIX9QQI3Z+NGI1qD7wXWE0KWTlHeaegRp6kMDkHZ8BqQgUFaDR5S5c8F49BSOjHOQC+7v0A6dij0nRAJ2ksSXYQUAuMjl4kBCT2koG0mF/kLUS40GbDnWtMu/2Mv/Pc0AvCv7Yowr9Pz4Bzz8+ibQ== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=uJtg1itV; dkim-atps=neutral; spf=pass (client-ip=172.234.252.31; helo=sea.source.kernel.org; envelope-from=sashal@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=uJtg1itV; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.234.252.31; helo=sea.source.kernel.org; envelope-from=sashal@kernel.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4fNlSX6WhMz3bsC for ; Sun, 01 Mar 2026 12:52:44 +1100 (AEDT) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 3D3D8435C0; Sun, 1 Mar 2026 01:52:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 884FCC19421; Sun, 1 Mar 2026 01:52:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772329963; bh=LdkQyWhY8/sOxq6lPbH2M0bRkx10EZVujj0IB3ReurY=; h=From:To:Cc:Subject:Date:From; b=uJtg1itVxg2wNOwyAe7ELdugfJrJO128UWpinichCumeewvMaR983YarGN64n1bR1 lQ2NICDs4PHriDLmCez7474TXHdgvWQj6JykpFkRVTg6JbG1N+oWSqaszEdQ8g+tc1 4ZQswflGh0L3hE3FCZ2OXHKMic/8XbXOF1GaLcEe2gMdwR9uxmM+3hGqO7y8oV4m/q lg+48Aq0DhzXHFLn3UjO6RyFoPocuG3S+46Ni5Iix6W9QP2wjjQDXMmUrZOJv7AKgq BcuqiQy5UHBY8gC2+xjDKn4Jrg0U6LO0cUrIqE3RdC9rRJuW7jBfQXLnrn/b1MuVFG 0MLoARNY+k/5Q== From: Sasha Levin To: stable@vger.kernel.org, lgs201920130244@gmail.com Cc: Christophe Leroy , Madhavan Srinivasan , linuxppc-dev@lists.ozlabs.org Subject: FAILED: Patch "powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()" failed to apply to 5.15-stable tree Date: Sat, 28 Feb 2026 20:52:41 -0500 Message-ID: <20260301015241.1719268-1-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 33c1c6d8a28a2761ac74b0380b2563cf546c2a3a Mon Sep 17 00:00:00 2001 From: Guangshuo Li Date: Tue, 23 Sep 2025 21:32:35 +0800 Subject: [PATCH] powerpc/smp: Add check for kcalloc() failure in parse_thread_groups() As kcalloc() may fail, check its return value to avoid a NULL pointer dereference when passing it to of_property_read_u32_array(). Fixes: 790a1662d3a26 ("powerpc/smp: Parse ibm,thread-groups with multiple properties") Cc: stable@vger.kernel.org Reviewed-by: Christophe Leroy Signed-off-by: Guangshuo Li Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20250923133235.1862108-1-lgs201920130244@gmail.com --- arch/powerpc/kernel/smp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 292fee8809bc8..cad3358fa4c35 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -822,6 +822,8 @@ static int parse_thread_groups(struct device_node *dn, count = of_property_count_u32_elems(dn, "ibm,thread-groups"); thread_group_array = kcalloc(count, sizeof(u32), GFP_KERNEL); + if (!thread_group_array) + return -ENOMEM; ret = of_property_read_u32_array(dn, "ibm,thread-groups", thread_group_array, count); if (ret) -- 2.51.0