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 72D29FD0045 for ; Sun, 1 Mar 2026 01:35:35 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4fNl4h3KZrz3bp0; Sun, 01 Mar 2026 12:35:32 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2600:3c04:e001:324:0:1991:8:25" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1772328932; cv=none; b=Kvp8rAz6YH/xkv+Fkf+nIREmg92Ox/sPBL112cIwI9/XYqIv7ZE9byHUqd3bSwb3HKOTGGpfQxuGglZTDXBcRveHQhhe1jzG0P9ZlQnvkogqEVW4uQb+wHzk9tdHRXAhHB1WyfJcvorqB0kEkMpkc6c6EiyRRkIlAcC0k+BFida+hznhiWZ+NwqXe2kvhpfklixLdTSlR20IOe9OAxRQlpXhBqcGGt1OGHXuBYoQPU+XoBn3jeZDqV1+vPT+2HjDQwgoINwjJIdsGec8WfIJq8cgnRMMjYXku2mXwV5A50nFILSgdu3OfJQXhxfYVq3Qwzw8aH4h9LVSQIspFm2I6g== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1772328932; c=relaxed/relaxed; bh=PFrJOci438ln0zOVsVGZNrpZgyVt3Mlti2h6xxfpKmE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=XYHQAtQ2NOUCEiV+bsAMTDyAJDcaf5j1MavR0OFzoux4SMmQ8vzfbXraow79NQuFV8/eE3HqV+qp9KQ6QYqFDXDidJH1mOyPJUNpNyDpRLg6pxjZgpbroyYfnevxKUWr41Jkd87xmLfa2n9n65MJqDZi10Zp+AqG5G9HZ2DybYPULjUlpdf5IqrGrT5zvdfqb1Z9bca+WCGKMp1yfD9PAMISq8W3xJZ7KaL5xiOd/6TDGasVRIRFCyegSuQlX5u3zliDwLMHatOKxW+XxbQ/N6R3t1o9MRUW5SoFsMjeY1m5bgoEDUeUv8e74xZ/Skz3GMewv4eNr/4NyGh15hieEw== 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=odpbHLry; dkim-atps=neutral; spf=pass (client-ip=2600:3c04:e001:324:0:1991:8:25; helo=tor.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=odpbHLry; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2600:3c04:e001:324:0:1991:8:25; helo=tor.source.kernel.org; envelope-from=sashal@kernel.org; receiver=lists.ozlabs.org) Received: from tor.source.kernel.org (tor.source.kernel.org [IPv6:2600:3c04:e001:324:0:1991:8:25]) (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 4fNl4g5sqWz2yF1 for ; Sun, 01 Mar 2026 12:35:31 +1100 (AEDT) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 2425560126; Sun, 1 Mar 2026 01:35:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 45BEEC19421; Sun, 1 Mar 2026 01:35:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772328929; bh=hQHVjddpf7hi5VOf+HYbPLrWcsziyH8t913F44jchaQ=; h=From:To:Cc:Subject:Date:From; b=odpbHLry6Hh3GYPuHUpYccY/MA93eYzgumtTpZelWRy72iQr75m0bq6ebdPK0HEDb GpjfMz+JeeolR8SsHY12pGODNB5Tosy860u2WrszAhF69j+JwHFeKVm9FILcFfCqLs nHxkUyoDJKdcxVYHCgZKuNOZqZL8ghcopYNzcocIMmiQ2TnYTtdaK+RH76APGAGx5h tnyFhOQiAwZglcHE5wk3pMG4jJLCkeFt+a8N8HRkSY0V03y/X3DCJk0n0cnWWKukP0 64ktFNFwKLUck0pS9nr7IOcmZjIKdhKROBndm/ga2GhU4hKs+InG5sHNMMXSxlmjJB n0Xa+uxSO9W0Q== 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 6.6-stable tree Date: Sat, 28 Feb 2026 20:35:27 -0500 Message-ID: <20260301013528.1695155-1-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 6.6-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