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 92A70FD0049 for ; Sun, 1 Mar 2026 01:44:28 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4fNlGz18xZz3bsC; Sun, 01 Mar 2026 12:44:27 +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=1772329467; cv=none; b=Hd1xQpDHLyLdUyQOprlyH2ARCkVX8P0jiZBcYDqodeYUcUcSHzmyG1Adg2gt4sCueHJLAs/tDNniIvBjQNJ1temESQYD0oCT92sjFhCkoQPeUC0qESUhhn1Fysw59lxOf3Jq7KiyOLyNxMVndfoi9RjrWihf5AUTTgJE1qEKrR46TNsCslZvxsoUE4qUngeidN1F+xAd14pgPoUKCsLCc5ufQ1XCJMPXcFvbDujAf1daNmutqZgctNoiB+YtMft9xFjbaWUk6BhJoN7y7up7KSeFPdNEaRfkr6XoM1nR+9jTvp8c0hVEVB+nNUS8agZmUZnQ2MRqrSFdPjzyKAbo0A== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1772329467; c=relaxed/relaxed; bh=FhZGjHhC3LTvSjbFWBoor40X/m9C0q7hNZ3amldoP6o=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=gzQEdsf2pOUfXc0G0kg23jBlSNXgR93CbCJD/Tnw2ZHXU7nyvvyQ8Nlqww960lo4zMmTZ3C+VPPYZCp/byQY0rhv6oos8vr0kI/61TlplGz25Nfwo1P4DucOhAhZNVk/Qmh386MlXEwd/WhpoHGMH9xt7qF0Ybwih5aPQkRHfkqMkVr+ZXIdcaM5oPnaWsbxTaLUXQN+gFfhVsoVBa/UVreqFrqlcZylo8G/eCC2qBsr6tSqa0URMD2UJfSjFG7uR0CqkWoUROeo+esmMJwdcEKQXympl3JSHhCBSF2fTdP6B09Rp6suoXKRtCx8/1pIhHUgJJfOha0DJeRaZAdADg== 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=Ggw4yKIs; 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=Ggw4yKIs; 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 4fNlGy44lFz2yF1 for ; Sun, 01 Mar 2026 12:44:26 +1100 (AEDT) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id F100144203; Sun, 1 Mar 2026 01:44:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4A477C19421; Sun, 1 Mar 2026 01:44:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772329464; bh=XoA7in5yZn4JoNSojI/rGTgznURkwgyR3C7uNZAnx3w=; h=From:To:Cc:Subject:Date:From; b=Ggw4yKIsdDpHCFVu4C49N8bjRpVD4znaegpWz4Kaax/dAu/tLUn9LbgZk2SIFqAqF o3pyN37ga0ClMlzRqE19ctAFwdDqyjcqKgFaBE5MUgh/q0TXVW5WhIoC4V5+tTm8jd c4nx9sF6qjk7axg+4XyLDAPZpUa3dIW8IsQndVcrXDbBIHay6Py15jU+XSUiYS2r6J CvkacOufgPmCaMQKK2uEuKJ5aV1fYwAnIHZiNLJljuJl69Aws2XoJImygPheXXdT0X 96wVeeiHtm3C7fwaXuxVk8GFPiWeioGPeZFOFcR+DZIUMZ671MK+rBHz9GNzEvRSbJ wkPjSQzsvsIcg== 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 6.1-stable tree Date: Sat, 28 Feb 2026 20:44:22 -0500 Message-ID: <20260301014423.1706624-1-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 6.1-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