From patchwork Tue Jul 9 14:35:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Smirnov X-Patchwork-Id: 812500 Received: from mx01.omp.ru (mx01.omp.ru [90.154.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3A88319D8A9 for ; Tue, 9 Jul 2024 14:35:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.154.21.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720535741; cv=none; b=tUHOPyrlby2Me794Ht/YHQFqIYiq7SrPZ0SfpKRBumhjuNKOrocpl64eFTtbLy77a8wT7bU/rux8VHCCb04GCgoY5vaUF6YEIulzzYpCQ2zCmalHWFQSKrvm08lGKvc+QrfgDTnr7XhuA2B1VHBmXXh4m/Ds29gB9aklMSoDn4w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720535741; c=relaxed/simple; bh=vhrdcBVQZoZrccPSJiEm7syXScooPKEPuKqw+PcZYsQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=til+EKupZWNPwmRIp/6QlY3kmGAXw4AftHNDnuGrv+JCXks16dYSVocq1KCny1SDGQvjLpkwbtptXjrN887TLUBVPfMEk0IDZBPR6t9AOTA361MqUyq6yXThuXuhYYv5ABWOgCoPTHmXbWZjqw8NOCbve/BqM8dXrB545VgQ360= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=omp.ru; spf=pass smtp.mailfrom=omp.ru; arc=none smtp.client-ip=90.154.21.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=omp.ru Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=omp.ru Received: from inp1wst083.omp.ru (81.22.207.138) by msexch01.omp.ru (10.188.4.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1258.12; Tue, 9 Jul 2024 17:35:22 +0300 From: Roman Smirnov To: CC: Roman Smirnov Subject: [PATCH BlueZ v2 1/4] health: mcap: add checks for NULL mcap_notify_error() Date: Tue, 9 Jul 2024 17:35:00 +0300 Message-ID: <20240709143503.12142-2-r.smirnov@omp.ru> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240709143503.12142-1-r.smirnov@omp.ru> References: <20240709143503.12142-1-r.smirnov@omp.ru> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: msexch01.omp.ru (10.188.4.12) To msexch01.omp.ru (10.188.4.12) X-KSE-ServerInfo: msexch01.omp.ru, 9 X-KSE-AntiSpam-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 6.1.0, Database issued on: 07/09/2024 14:15:02 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 0 X-KSE-AntiSpam-Info: Lua profiles 186394 [Jul 09 2024] X-KSE-AntiSpam-Info: Version: 6.1.0.4 X-KSE-AntiSpam-Info: Envelope from: r.smirnov@omp.ru X-KSE-AntiSpam-Info: LuaCore: 24 0.3.24 186c4d603b899ccfd4883d230c53f273b80e467f X-KSE-AntiSpam-Info: {rep_avail} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: 127.0.0.199:7.1.2; inp1wst083.omp.ru:7.1.1; omp.ru:7.1.1; d41d8cd98f00b204e9800998ecf8427e.com:7.1.1; 81.22.207.138:7.1.2 X-KSE-AntiSpam-Info: ApMailHostAddress: 81.22.207.138 X-KSE-AntiSpam-Info: Rate: 0 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dmarc=temperror header.from=omp.ru;spf=temperror smtp.mailfrom=omp.ru;dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 07/09/2024 14:19:00 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 7/9/2024 11:26:00 AM X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit It is necessary to prevent dereferencing of NULL pointers. Found with the SVACE static analysis tool. --- profiles/health/mcap.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/profiles/health/mcap.c b/profiles/health/mcap.c index 7eceaa88a..2e4214a69 100644 --- a/profiles/health/mcap.c +++ b/profiles/health/mcap.c @@ -336,6 +336,9 @@ static void mcap_notify_error(struct mcap_mcl *mcl, GError *err) case MCAP_MD_CREATE_MDL_REQ: st = MDL_WAITING; l = g_slist_find_custom(mcl->mdls, &st, cmp_mdl_state); + if (!l) + return; + mdl = l->data; mcl->mdls = g_slist_remove(mcl->mdls, mdl); mcap_mdl_unref(mdl); @@ -345,6 +348,9 @@ static void mcap_notify_error(struct mcap_mcl *mcl, GError *err) case MCAP_MD_ABORT_MDL_REQ: st = MDL_WAITING; l = g_slist_find_custom(mcl->mdls, &st, cmp_mdl_state); + if (!l) + return; + shutdown_mdl(l->data); update_mcl_state(mcl); con->cb.notify(err, con->user_data); @@ -362,6 +368,9 @@ static void mcap_notify_error(struct mcap_mcl *mcl, GError *err) case MCAP_MD_RECONNECT_MDL_REQ: st = MDL_WAITING; l = g_slist_find_custom(mcl->mdls, &st, cmp_mdl_state); + if (!l) + return; + shutdown_mdl(l->data); update_mcl_state(mcl); con->cb.op(NULL, err, con->user_data);