From patchwork Tue Mar 19 08:10:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miri Korenblit X-Patchwork-Id: 781340 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) (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 3D6A77C0BA for ; Tue, 19 Mar 2024 08:10:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.17 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710835854; cv=none; b=n17NF8yzo7ISDUe3wn3J6NkTV24gigKMRj6NttPrKiQPdqTJDIouxNiOx49EaEsXc+djYIFAlBkpvk2PLAdv+LRQkRYQ4PnD9yA+KAocRsd+f/Gbs0WEUiNjQR2B0HhWnkLQf0OBeAO+qoQjHBQY7KMtGagSmCpTqh6ap8eulW0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710835854; c=relaxed/simple; bh=qz2pvngmX6oK/ewug1vIgUqeObuMjoCkTr8rHSHDR3M=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=KyCwyvh/QI1J52OIfTdOTDAQX4TOQr9gajoNTHL0vRGLOoENe6TbfuJBe1pkmT4BhulfHvF/iviBcchlnUmBjlRZwRK6koJ0cjrXh3/1Uo4PUuKcHE9vcCeNw+dZOUF7Izrj2XjeGCN7YsLTWafeQquLOaRoMr/FZRLfW6uxJpc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=SIh8Lu7O; arc=none smtp.client-ip=198.175.65.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="SIh8Lu7O" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1710835852; x=1742371852; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=qz2pvngmX6oK/ewug1vIgUqeObuMjoCkTr8rHSHDR3M=; b=SIh8Lu7O65OBzzj4xAhFabzrpYhcbU50Ig9zbYRujmePqPgRS3ZnAmzu 0KeAUpOnYfzM8983WHNyH37z3Uo4jz57+tqCTVF1mS50ep8UTlXHPz+sm Fk++OSM30qIqXQYIs9klZaOMA3GmJTwMuXR0ZGO/Amp5yqZzjtmA3MldK N54dNceZJcjwdnGeZ85h1PNO8AN1gE91u+fUERAafmsFXDY+EZnMRSaZ8 +z76ML0UP1XW/TgyDXg+AMG/8v7VuVi5nHm4QMebw3I0/s6i7DXOr2bre O8Jug6tCOJnCbaSzCERYJYL1QWPERCuW+T+zLSZFsngsE6YVR47jBt6ng g==; X-IronPort-AV: E=McAfee;i="6600,9927,11017"; a="5810543" X-IronPort-AV: E=Sophos;i="6.07,136,1708416000"; d="scan'208";a="5810543" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Mar 2024 01:10:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,136,1708416000"; d="scan'208";a="18447596" Received: from unknown (HELO WEIS0040.iil.intel.com) ([10.12.217.108]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Mar 2024 01:10:50 -0700 From: Miri Korenblit To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Johannes Berg , Anjaneyulu Subject: [PATCH 05/15] wifi: iwlwifi: mvm: rfi: fix potential response leaks Date: Tue, 19 Mar 2024 10:10:17 +0200 Message-Id: <20240319100755.db2fa0196aa7.I116293b132502ac68a65527330fa37799694b79c@changeid> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240319081027.3853611-1-miriam.rachel.korenblit@intel.com> References: <20240319081027.3853611-1-miriam.rachel.korenblit@intel.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Israel (74) Limited From: Johannes Berg If the rx payload length check fails, or if kmemdup() fails, we still need to free the command response. Fix that. Fixes: 21254908cbe9 ("iwlwifi: mvm: add RFI-M support") Co-authored-by: Anjaneyulu Signed-off-by: Johannes Berg Signed-off-by: Miri Korenblit --- drivers/net/wireless/intel/iwlwifi/mvm/rfi.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c b/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c index 2ecd32bed752..045c862a8fc4 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c @@ -132,14 +132,18 @@ struct iwl_rfi_freq_table_resp_cmd *iwl_rfi_get_freq_table(struct iwl_mvm *mvm) if (ret) return ERR_PTR(ret); - if (WARN_ON_ONCE(iwl_rx_packet_payload_len(cmd.resp_pkt) != resp_size)) + if (WARN_ON_ONCE(iwl_rx_packet_payload_len(cmd.resp_pkt) != + resp_size)) { + iwl_free_resp(&cmd); return ERR_PTR(-EIO); + } resp = kmemdup(cmd.resp_pkt->data, resp_size, GFP_KERNEL); + iwl_free_resp(&cmd); + if (!resp) return ERR_PTR(-ENOMEM); - iwl_free_resp(&cmd); return resp; }