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From: Xueming Li <xuemingl@nvidia.com>
To: Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
	Thomas Monjalon <thomas@monjalon.net>,
	Ferruh Yigit <ferruh.yigit@intel.com>,
	Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
	Olivier Matz <olivier.matz@6wind.com>,
	Matan Azrad <matan@nvidia.com>
Cc: dev@dpdk.org, xuemingl@nvidia.com, Asaf Penso <asafp@nvidia.com>,
	gaetan.rivet@6wind.com, stable@dpdk.org
Subject: [dpdk-dev] [RFC 4/9] devargs: fix buffer data memory leak
Date: Fri, 18 Dec 2020 15:16:49 +0000	[thread overview]
Message-ID: <1608304614-13908-5-git-send-email-xuemingl@nvidia.com> (raw)
In-Reply-To: <1608304614-13908-1-git-send-email-xuemingl@nvidia.com>

Struct rte_devargs data buffer was changed from args to data field, not
all references were changed accordingly, memory leak happened when
releasing devargs.

Free data field of devargs struct.

Fixes: 338327d731e6 ("devargs: add function to parse device layers")
Cc: gaetan.rivet@6wind.com
Cc: stable@dpdk.org
Signed-off-by: Xueming Li <xuemingl@nvidia.com>
---
 app/test-pmd/config.c                        | 4 ++--
 app/test-pmd/testpmd.c                       | 4 ++--
 drivers/bus/vdev/vdev.c                      | 5 +++--
 drivers/net/failsafe/failsafe_args.c         | 3 ++-
 drivers/net/failsafe/failsafe_eal.c          | 2 +-
 examples/multi_process/hotplug_mp/commands.c | 8 ++++----
 lib/librte_eal/common/eal_common_dev.c       | 4 ++--
 lib/librte_eal/common/eal_common_devargs.c   | 7 ++++---
 lib/librte_eal/common/hotplug_mp.c           | 5 ++---
 lib/librte_ethdev/rte_ethdev.c               | 5 +++--
 10 files changed, 25 insertions(+), 22 deletions(-)

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index b51de59e1e..e7f456692b 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -593,8 +593,8 @@ device_infos_display(const char *identifier)
 
 	if (rte_devargs_parsef(&da, "%s", identifier)) {
 		printf("cannot parse identifier\n");
-		if (da.args)
-			free(da.args);
+		if (da.data)
+			free(da.data);
 		return;
 	}
 
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 33fc0fddf5..66f3ff9320 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -3056,8 +3056,8 @@ detach_devargs(char *identifier)
 	memset(&da, 0, sizeof(da));
 	if (rte_devargs_parsef(&da, "%s", identifier)) {
 		printf("cannot parse identifier\n");
-		if (da.args)
-			free(da.args);
+		if (da.data)
+			free(da.data);
 		return;
 	}
 
diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index acfd78828f..43375bb334 100644
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -236,9 +236,10 @@ alloc_devargs(const char *name, const char *args)
 
 	devargs->bus = &rte_vdev_bus;
 	if (args)
-		devargs->args = strdup(args);
+		devargs->data = strdup(args);
 	else
-		devargs->args = strdup("");
+		devargs->data = strdup("");
+	devargs->args = devargs->data;
 
 	ret = strlcpy(devargs->name, name, sizeof(devargs->name));
 	if (ret < 0 || ret >= (int)sizeof(devargs->name)) {
diff --git a/drivers/net/failsafe/failsafe_args.c b/drivers/net/failsafe/failsafe_args.c
index 707490b94c..5e507bffbc 100644
--- a/drivers/net/failsafe/failsafe_args.c
+++ b/drivers/net/failsafe/failsafe_args.c
@@ -451,7 +451,8 @@ failsafe_args_free(struct rte_eth_dev *dev)
 		sdev->cmdline = NULL;
 		free(sdev->fd_str);
 		sdev->fd_str = NULL;
-		free(sdev->devargs.args);
+		free(sdev->devargs.data);
+		sdev->devargs.data = NULL;
 		sdev->devargs.args = NULL;
 	}
 }
diff --git a/drivers/net/failsafe/failsafe_eal.c b/drivers/net/failsafe/failsafe_eal.c
index b9fc508673..f066c053f3 100644
--- a/drivers/net/failsafe/failsafe_eal.c
+++ b/drivers/net/failsafe/failsafe_eal.c
@@ -79,7 +79,7 @@ fs_bus_init(struct rte_eth_dev *dev)
 					rte_eth_devices[pid].device->devargs;
 
 			/* Take control of probed device. */
-			free(da->args);
+			free(da->data);
 			memset(da, 0, sizeof(*da));
 			if (probed_da != NULL)
 				snprintf(devstr, sizeof(devstr), "%s,%s",
diff --git a/examples/multi_process/hotplug_mp/commands.c b/examples/multi_process/hotplug_mp/commands.c
index a8a39d07f7..e77585e5b4 100644
--- a/examples/multi_process/hotplug_mp/commands.c
+++ b/examples/multi_process/hotplug_mp/commands.c
@@ -121,8 +121,8 @@ static void cmd_dev_attach_parsed(void *parsed_result,
 
 	if (rte_devargs_parsef(&da, "%s", res->devargs)) {
 		cmdline_printf(cl, "cannot parse devargs\n");
-		if (da.args)
-			free(da.args);
+		if (da.data)
+			free(da.data);
 		return;
 	}
 
@@ -168,8 +168,8 @@ static void cmd_dev_detach_parsed(void *parsed_result,
 
 	if (rte_devargs_parsef(&da, "%s", res->devargs)) {
 		cmdline_printf(cl, "cannot parse devargs\n");
-		if (da.args)
-			free(da.args);
+		if (da.data)
+			free(da.data);
 		return;
 	}
 
diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c
index 793fbdf24b..f65a9594cc 100644
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -186,7 +186,7 @@ local_dev_probe(const char *devargs, struct rte_device **new_dev)
 
 err_devarg:
 	if (rte_devargs_remove(da) != 0) {
-		free(da->args);
+		free(da->data);
 		free(da);
 	}
 	return ret;
@@ -585,7 +585,7 @@ rte_dev_iterator_init(struct rte_dev_iterator *it, char *dev_str)
 	it->bus_str = NULL;
 	it->cls_str = NULL;
 
-	devargs.data = dev_str;
+	devargs.data = NULL;
 	if (rte_devargs_layers_parse(&devargs, dev_str))
 		goto get_out;
 
diff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c
index 3c4774c88a..e1a3cd7367 100644
--- a/lib/librte_eal/common/eal_common_devargs.c
+++ b/lib/librte_eal/common/eal_common_devargs.c
@@ -284,7 +284,8 @@ rte_devargs_insert(struct rte_devargs **da)
 			/* device already in devargs list, must be updated */
 			listed_da->type = (*da)->type;
 			listed_da->policy = (*da)->policy;
-			free(listed_da->args);
+			if (listed_da->data)
+				free(listed_da->data);
 			listed_da->args = (*da)->args;
 			listed_da->bus = (*da)->bus;
 			listed_da->cls = (*da)->cls;
@@ -332,7 +333,7 @@ rte_devargs_add(enum rte_devtype devtype, const char *devargs_str)
 
 fail:
 	if (devargs) {
-		free(devargs->args);
+		free(devargs->data);
 		free(devargs);
 	}
 
@@ -352,7 +353,7 @@ rte_devargs_remove(struct rte_devargs *devargs)
 		if (strcmp(d->bus->name, devargs->bus->name) == 0 &&
 		    strcmp(d->name, devargs->name) == 0) {
 			TAILQ_REMOVE(&devargs_list, d, next);
-			free(d->args);
+			free(d->data);
 			free(d);
 			return 0;
 		}
diff --git a/lib/librte_eal/common/hotplug_mp.c b/lib/librte_eal/common/hotplug_mp.c
index ee791903b3..f0f7c61048 100644
--- a/lib/librte_eal/common/hotplug_mp.c
+++ b/lib/librte_eal/common/hotplug_mp.c
@@ -118,8 +118,7 @@ __handle_secondary_request(void *param)
 		ret = rte_devargs_parse(&da, req->devargs);
 		if (ret != 0)
 			goto finish;
-		free(da.args); /* we don't need those */
-		da.args = NULL;
+		free(da.data); /* we don't need those */
 
 		ret = eal_dev_hotplug_request_to_secondary(&tmp_req);
 		if (ret != 0) {
@@ -283,7 +282,7 @@ static void __handle_primary_request(void *param)
 
 		ret = local_dev_remove(dev);
 quit:
-		free(da->args);
+		free(da->data);
 		free(da);
 		break;
 	default:
diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 17ddacc78d..4976961d13 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -244,7 +244,8 @@ rte_eth_iterator_init(struct rte_dev_iterator *iter, const char *devargs_str)
 		goto error;
 	}
 	iter->cls_str = cls_str;
-	free(devargs.args); /* allocated by rte_devargs_parse() */
+	free(devargs.data); /* allocated by rte_devargs_parse() */
+	devargs.data = NULL;
 	devargs.args = NULL;
 
 	iter->bus = devargs.bus;
@@ -284,7 +285,7 @@ rte_eth_iterator_init(struct rte_dev_iterator *iter, const char *devargs_str)
 	if (ret == -ENOTSUP)
 		RTE_ETHDEV_LOG(ERR, "Bus %s does not support iterating.\n",
 				iter->bus->name);
-	free(devargs.args);
+	free(devargs.data);
 	free(bus_str);
 	free(cls_str);
 	return ret;
-- 
2.25.1


  parent reply	other threads:[~2020-12-18 15:17 UTC|newest]

Thread overview: 126+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-18 15:16 [dpdk-dev] [RFC 0/9] support global syntax Xueming Li
2020-12-18 15:16 ` [dpdk-dev] [RFC 1/9] devargs: fix data buffer storage type Xueming Li
2021-01-08 14:54   ` [dpdk-dev] [PATCH v1 0/7] eal: support global syntax Xueming Li
2021-01-08 14:54   ` [dpdk-dev] [PATCH v1 1/7] devargs: fix data buffer storage type Xueming Li
2021-01-08 14:54   ` [dpdk-dev] [PATCH v1 2/7] devargs: fix memory leak on parsing error Xueming Li
2021-01-08 14:54   ` [dpdk-dev] [PATCH v1 3/7] devargs: fix memory leak in legacy parser Xueming Li
2021-01-08 14:54   ` [dpdk-dev] [PATCH v1 4/7] devargs: fix buffer data memory leak Xueming Li
2021-01-08 14:54   ` [dpdk-dev] [PATCH v1 5/7] kvargs: add get by key function Xueming Li
2021-01-08 14:54   ` [dpdk-dev] [PATCH v1 6/7] devargs: support new global device syntax Xueming Li
2021-01-08 14:54   ` [dpdk-dev] [PATCH v1 7/7] bus/pci: add new global device syntax support Xueming Li
2021-01-08 15:14   ` [dpdk-dev] [PATCH v1 0/2] mlx5: support global syntax Xueming Li
2021-01-08 15:14   ` [dpdk-dev] [PATCH v1 1/2] common/mlx5: support device " Xueming Li
2021-01-08 15:15   ` [dpdk-dev] [PATCH v1 2/2] net/mlx5: support new " Xueming Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 0/9] net/mlx5: support SubFunction representor Xueming Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 1/9] common/mlx5: update representor name parsing Xueming Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 2/9] net/mlx5: support representor of sub function Xueming Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 3/9] net/mlx5: revert setting bonding representor to first PF Xueming Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 4/9] net/mlx5: refactor bonding representor probe Xueming Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 5/9] net/mlx5: support representor from multiple PFs Xueming Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 6/9] net/mlx5: save bonding member ports information Xueming Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 7/9] " Xueming Li
2021-01-18 16:17     ` Slava Ovsiienko
2021-01-18 23:05       ` Xueming(Steven) Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 8/9] net/mlx5: fix setting VF default MAC through representor Xueming Li
2021-01-18 11:29   ` [dpdk-dev] [PATCH v3 9/9] net/mlx5: improve bonding xstats Xueming Li
2021-01-18 15:16   ` [dpdk-dev] [PATCH v2 0/5] eal: enable global device syntax Xueming Li
2021-01-18 15:16   ` [dpdk-dev] [PATCH v2 1/5] devargs: fix memory leak on parsing error Xueming Li
2021-03-18  9:12     ` Thomas Monjalon
2021-01-18 15:16   ` [dpdk-dev] [PATCH v2 2/5] devargs: refactor scratch buffer storage Xueming Li
2021-03-18  9:14     ` Thomas Monjalon
2021-01-18 15:16   ` [dpdk-dev] [PATCH v2 3/5] kvargs: add get by key function Xueming Li
2021-01-18 15:16   ` [dpdk-dev] [PATCH v2 4/5] devargs: parse name from global device syntax Xueming Li
2021-01-18 15:16   ` [dpdk-dev] [PATCH v2 5/5] devargs: enable global device syntax devargs Xueming Li
2021-01-18 15:26   ` [dpdk-dev] [PATCH v2 0/2] mlx5: support global device syntax Xueming Li
2021-09-20  8:07     ` Thomas Monjalon
2021-09-23  6:47       ` Xueming(Steven) Li
2021-09-23  6:45     ` [dpdk-dev] [PATCH v3] net/mlx5: support new " Xueming Li
2021-09-29 19:37       ` Thomas Monjalon
2021-01-18 15:26   ` [dpdk-dev] [PATCH v2 1/2] common/mlx5: support device global syntax Xueming Li
2021-04-05 10:54     ` Slava Ovsiienko
2021-04-08 12:24       ` Raslan Darawsheh
2021-04-08 14:04         ` Raslan Darawsheh
2021-04-08 14:08           ` Xueming(Steven) Li
2021-04-08 14:13             ` Raslan Darawsheh
2021-04-19  9:29               ` Raslan Darawsheh
2021-04-19 10:36                 ` Raslan Darawsheh
2021-01-18 15:26   ` [dpdk-dev] [PATCH v2 2/2] net/mlx5: support new global device syntax Xueming Li
2021-04-05 10:56     ` Slava Ovsiienko
2021-01-19  7:28   ` [dpdk-dev] [PATCH v4 0/8] net/mlx5: support SubFunction representor Xueming Li
2021-01-19  7:28   ` [dpdk-dev] [PATCH v4 1/8] common/mlx5: update representor name parsing Xueming Li
2021-01-19  7:28   ` [dpdk-dev] [PATCH v4 2/8] net/mlx5: support representor of sub function Xueming Li
2021-01-19  7:28   ` [dpdk-dev] [PATCH v4 3/8] net/mlx5: revert setting bonding representor to first PF Xueming Li
2021-01-19  7:28   ` [dpdk-dev] [PATCH v4 4/8] net/mlx5: refactor bonding representor probe Xueming Li
2021-01-19  7:28   ` [dpdk-dev] [PATCH v4 5/8] net/mlx5: support representor from multiple PFs Xueming Li
2021-01-19  7:28   ` [dpdk-dev] [PATCH v4 6/8] net/mlx5: save bonding member ports information Xueming Li
2021-01-19  7:28   ` [dpdk-dev] [PATCH v4 7/8] net/mlx5: fix setting VF default MAC through representor Xueming Li
2021-01-19  7:28   ` [dpdk-dev] [PATCH v4 8/8] net/mlx5: improve bonding xstats Xueming Li
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 0/9] net/mlx5: support SubFunction representor Xueming Li
2021-03-31  7:20     ` Raslan Darawsheh
2021-03-31  7:27       ` Xueming(Steven) Li
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 1/9] common/mlx5: sub-function representor port name parsing Xueming Li
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 2/9] net/mlx5: support representor of sub function Xueming Li
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 3/9] net/mlx5: revert setting bonding representor to first PF Xueming Li
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 4/9] net/mlx5: refactor bonding representor probe Xueming Li
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 5/9] net/mlx5: support list value of representor PF Xueming Li
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 6/9] net/mlx5: save bonding member ports information Xueming Li
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 7/9] net/mlx5: fix setting VF default MAC through representor Xueming Li
2021-03-31  7:46     ` Raslan Darawsheh
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 8/9] net/mlx5: improve xstats of bonding port Xueming Li
2021-03-28 13:48   ` [dpdk-dev] [PATCH v5 9/9] net/mlx5: probe host PF representor with SubFunction Xueming Li
2021-03-30  7:37     ` Slava Ovsiienko
2021-03-30 12:15   ` [dpdk-dev] [PATCH v3 0/5] eal: enable global device syntax by default Xueming Li
2021-03-31  8:23     ` Gaëtan Rivet
2021-03-30 12:15   ` [dpdk-dev] [PATCH v3 1/5] devargs: unify scratch buffer storage Xueming Li
2021-04-01  9:04     ` Kinsella, Ray
2021-03-30 12:15   ` [dpdk-dev] [PATCH v3 2/5] devargs: fix memory leak on parsing error Xueming Li
2021-03-30 12:15   ` [dpdk-dev] [PATCH v3 3/5] kvargs: add get by key function Xueming Li
2021-04-01  9:06     ` Kinsella, Ray
2021-04-01  9:10       ` Xueming(Steven) Li
2021-03-30 12:15   ` [dpdk-dev] [PATCH v3 4/5] bus: add device arguments name parsing API Xueming Li
2021-03-31 10:19     ` Thomas Monjalon
2021-04-01 15:13       ` Xueming(Steven) Li
2021-04-08 23:49         ` Thomas Monjalon
2021-03-30 12:15   ` [dpdk-dev] [PATCH v3 5/5] devargs: parse global device syntax Xueming Li
2021-04-10 14:23   ` [dpdk-dev] [PATCH v4 0/5] eal: enable global device syntax by default Xueming Li
2021-04-10 14:23   ` [dpdk-dev] [PATCH v4 1/5] devargs: unify scratch buffer storage Xueming Li
2021-04-10 19:59     ` Tal Shnaiderman
2021-04-12 12:07       ` Xueming(Steven) Li
2021-04-10 14:23   ` [dpdk-dev] [PATCH v4 2/5] devargs: fix memory leak on parsing error Xueming Li
2021-04-10 14:23   ` [dpdk-dev] [PATCH v4 3/5] kvargs: add get by key function Xueming Li
2021-04-12  6:52     ` Olivier Matz
2021-04-12 12:07       ` Xueming(Steven) Li
2021-04-12 21:18         ` Thomas Monjalon
2021-04-10 14:23   ` [dpdk-dev] [PATCH v4 4/5] bus: add device arguments name parsing API Xueming Li
2021-04-12 21:16     ` Thomas Monjalon
2021-04-12 23:37       ` Xueming(Steven) Li
2021-04-10 14:23   ` [dpdk-dev] [PATCH v4 5/5] devargs: parse global device syntax Xueming Li
2021-04-12 21:24     ` Thomas Monjalon
2021-04-12 23:47       ` Xueming(Steven) Li
2021-04-13  3:14   ` [dpdk-dev] [PATCH v5 0/5] eal: enable global device syntax by default Xueming Li
2021-04-14 19:49     ` Thomas Monjalon
2021-04-23 11:06       ` Kinsella, Ray
2021-04-23 11:39         ` Gaëtan Rivet
2021-04-23 12:35           ` Kinsella, Ray
2021-09-02 14:46       ` Thomas Monjalon
2021-04-13  3:14   ` [dpdk-dev] [PATCH v5 1/5] devargs: unify scratch buffer storage Xueming Li
2021-04-16  7:00     ` David Marchand
2021-04-16 12:32       ` Aaron Conole
2021-04-16 12:43         ` [dpdk-dev] [dpdklab] " Lincoln Lavoie
2021-04-16 12:58           ` Thomas Monjalon
2021-04-16 13:14             ` Lincoln Lavoie
2021-04-13  3:14   ` [dpdk-dev] [PATCH v5 2/5] devargs: fix memory leak on parsing error Xueming Li
2021-04-13  3:14   ` [dpdk-dev] [PATCH v5 3/5] kvargs: add get by key function Xueming Li
2021-04-13  3:14   ` [dpdk-dev] [PATCH v5 4/5] bus: add device arguments name parsing API Xueming Li
2021-04-13  3:14   ` [dpdk-dev] [PATCH v5 5/5] devargs: parse global device syntax Xueming Li
2021-09-28  8:29     ` David Marchand
2021-09-28  9:04       ` Thomas Monjalon
2021-10-03 10:51         ` Xueming(Steven) Li
2020-12-18 15:16 ` [dpdk-dev] [RFC 2/9] devargs: fix memory leak on parsing error Xueming Li
2020-12-18 15:16 ` [dpdk-dev] [RFC 3/9] devargs: fix memory leak in legacy parser Xueming Li
2020-12-18 15:16 ` Xueming Li [this message]
2020-12-18 15:16 ` [dpdk-dev] [RFC 5/9] kvargs: add get by key function Xueming Li
2020-12-18 15:16 ` [dpdk-dev] [RFC 6/9] devargs: support new global device syntax Xueming Li
2020-12-18 15:16 ` [dpdk-dev] [RFC 7/9] bus/pci: add new global device syntax support Xueming Li
2020-12-18 15:16 ` [dpdk-dev] [RFC 8/9] common/mlx5: support device global syntax Xueming Li
2020-12-18 15:16 ` [dpdk-dev] [RFC 9/9] net/mlx5: support new " Xueming Li

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