From patchwork Thu May 16 09:03:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastien Nocera X-Patchwork-Id: 797324 Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) (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 94653143757 for ; Thu, 16 May 2024 09:03:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.197 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715850233; cv=none; b=HH8HtTnP6kVf4waw86e0w+sGT92XdxYzklfRqIjAgraZJlWukMsH+SoG0VKrkuGNu+OjPIVfBR4LX9fQTZk8kM/uGL046oyu52DWp1V5+3GomtVYoZ38z0mBUIaO+eRekw+AdfL2Hd2A92JrnfdrfPYCZaMCrOpr+CNxu4HXPrU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715850233; c=relaxed/simple; bh=wBKaBDtRcPjNoMraWYoXvslQgUVGW3mNUPea6jugRso=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=n0qwA3kg0B5Qtk3glesYChZXyQDZxvGntVCrMYkXOUKobRBmsSPEi8mQ1mb0BJu6IHj3OJmqm8pFbjEsVl5iiu2Ap/4jV9Ah9BO3ifKTULpKCTCnCX7WtcrpsfKtXcnbb4DeKUWaRuTSEGWFV9i362/VqCnsP+ZtZOVRUm1zzFw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=hadess.net; spf=pass smtp.mailfrom=hadess.net; arc=none smtp.client-ip=217.70.183.197 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=hadess.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=hadess.net Received: by mail.gandi.net (Postfix) with ESMTPSA id 8D9A71C001B; Thu, 16 May 2024 09:03:44 +0000 (UTC) From: Bastien Nocera To: linux-bluetooth@vger.kernel.org Cc: Bastien Nocera Subject: [BlueZ 12/15] mgmt-tester: Fix non-nul-terminated string Date: Thu, 16 May 2024 11:03:16 +0200 Message-ID: <20240516090340.61417-13-hadess@hadess.net> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240516090340.61417-1-hadess@hadess.net> References: <20240516090340.61417-1-hadess@hadess.net> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: hadess@hadess.net Error: STRING_NULL (CWE-170): [#def59] [important] bluez-5.75/tools/mgmt-tester.c:12670:2: string_null_source: Function "vhci_read_devcd" does not terminate string "buf". bluez-5.75/tools/mgmt-tester.c:12677:2: string_null: Passing unterminated string "buf" to "strtok_r", which expects a null-terminated string. 12675| 12676| /* Verify if all devcoredump header fields are present */ 12677|-> line = strtok_r(buf, delim, &saveptr); 12678| while (strlen(test->expect_dump_data[i])) { 12679| if (!line || strcmp(line, test->expect_dump_data[i])) { --- tools/mgmt-tester.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/tools/mgmt-tester.c b/tools/mgmt-tester.c index 8a4fbc2eb6a6..8076ec105ebb 100644 --- a/tools/mgmt-tester.c +++ b/tools/mgmt-tester.c @@ -12656,18 +12656,22 @@ static void verify_devcd(void *user_data) struct test_data *data = tester_get_data(); const struct generic_data *test = data->test_data; struct vhci *vhci = hciemu_get_vhci(data->hciemu); - char buf[MAX_COREDUMP_BUF_LEN] = {0}; + char buf[MAX_COREDUMP_BUF_LEN + 1] = {0}; + int read; char delim[] = "\n"; char *line; char *saveptr; int i = 0; /* Read the generated devcoredump file */ - if (vhci_read_devcd(vhci, buf, sizeof(buf)) <= 0) { + read = vhci_read_devcd(vhci, buf, MAX_COREDUMP_BUF_LEN); + if (read <= 0) { tester_warn("Unable to read devcoredump"); tester_test_failed(); return; } + /* Make sure buf is nul-terminated */ + buf[read + 1] = '\0'; /* Verify if all devcoredump header fields are present */ line = strtok_r(buf, delim, &saveptr);