From nobody Mon Feb 9 08:19:13 2026 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (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 636512AD11; Fri, 17 Oct 2025 04:11:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760674301; cv=none; b=LbII9wL8AKXdF23PFVce5ky3OppypalTw5BpuKnJIJw7gFWe65a09BEOJAlTcwtbv3JPelrxxpdoOcbEN3fE2lgTLvHwKx8GvOIhQWZamnC6/VIM6p1lN0gqnAyIdZUDUV7TTsAGisVxPsB3vm8T63wfN5jYmMNweR2uBjPk2DQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760674301; c=relaxed/simple; bh=3DBTrmpSoQPz0qwYohA6Ub/8HY9k/rKP4hodqUP2sPk=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=DC3GE/adhZ7fs3LXSSz32ZEvAntp7LdCGzVb4mkHHGj9dY1AsVhovgh9ad5SnU/zvfjLGtSBt92lsXl1RPwhw8Y0i5iqYMVRiGFU1Yu/oQCmR5UK1Yxt345gOkcgfjmfk1xC0N/6Q9eo0tDrtO9kncbWjrks7So/E5yBtDTdWVE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 5d074234ab0f11f0a38c85956e01ac42-20251017 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.6,REQID:30e60bda-c7be-4f75-bed1-ad962732147d,IP:0,UR L:0,TC:0,Content:0,EDM:25,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:25 X-CID-META: VersionHash:a9d874c,CLOUDID:038a3ebec05791a9b37a49a4422c88d9,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:102|850,TC:nil,Content:0|50,EDM:5,IP:nil ,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES: 1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 5d074234ab0f11f0a38c85956e01ac42-20251017 X-User: liqiang01@kylinos.cn Received: from localhost.localdomain [(10.44.16.150)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 1469670305; Fri, 17 Oct 2025 12:11:32 +0800 From: Li Qiang To: miriam.rachel.korenblit@intel.com, johannes.berg@intel.com, emmanuel.grumbach@intel.com, rotem.kerem@intel.com, yedidya.ben.shimol@intel.com Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Li Qiang Subject: [PATCH] wifi: iwlwifi: mld: add null check for kzalloc() in iwl_mld_send_proto_offload() Date: Fri, 17 Oct 2025 12:11:28 +0800 Message-Id: <20251017041128.1379715-1-liqiang01@kylinos.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add a missing NULL pointer check after kzalloc() in iwl_mld_send_proto_offload(). Without this check, a failed allocation could lead to a NULL dereference. Fixes: d1e879ec600f9 ("wifi: iwlwifi: add iwlmld sub-driver") Signed-off-by: Li Qiang --- drivers/net/wireless/intel/iwlwifi/mld/d3.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/intel/iwlwifi/mld/d3.c b/drivers/net/wire= less/intel/iwlwifi/mld/d3.c index 1d4282a21f09..dd85be94433c 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/d3.c +++ b/drivers/net/wireless/intel/iwlwifi/mld/d3.c @@ -1794,6 +1794,10 @@ iwl_mld_send_proto_offload(struct iwl_mld *mld, u32 enabled =3D 0; =20 cmd =3D kzalloc(hcmd.len[0], GFP_KERNEL); + if (!cmd) { + IWL_DEBUG_WOWLAN(mld, "Failed to allocate proto offload cmd\n"); + return -ENOMEM; + } =20 #if IS_ENABLED(CONFIG_IPV6) struct iwl_mld_vif *mld_vif =3D iwl_mld_vif_from_mac80211(vif); --=20 2.25.1