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From: Vaibhav Jain <vaibhav@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-nvdimm@lists.01.org
Cc: Vaibhav Jain <vaibhav@linux.ibm.com>,
	"Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
	stable@vger.kernel.org
Subject: [PATCH] libnvdimm/of_pmem: Fix leaking bus_desc.provider_name in some paths
Date: Thu, 23 Jan 2020 08:48:47 +0530	[thread overview]
Message-ID: <20200123031847.149325-1-vaibhav@linux.ibm.com> (raw)

String 'bus_desc.provider_name' allocated inside
of_pmem_region_probe() will leak in case call to nvdimm_bus_register()
fails or when of_pmem_region_remove() is called.

This minor patch ensures that 'bus_desc.provider_name' is freed in
error path for of_pmem_region_probe() as well as in
of_pmem_region_remove().

Cc: stable@vger.kernel.org
Fixes:49bddc73d15c2("libnvdimm/of_pmem: Provide a unique name for bus provider")
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
---
 drivers/nvdimm/of_pmem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvdimm/of_pmem.c b/drivers/nvdimm/of_pmem.c
index 8224d1431ea9..9cb76f9837ad 100644
--- a/drivers/nvdimm/of_pmem.c
+++ b/drivers/nvdimm/of_pmem.c
@@ -36,6 +36,7 @@ static int of_pmem_region_probe(struct platform_device *pdev)
 
 	priv->bus = bus = nvdimm_bus_register(&pdev->dev, &priv->bus_desc);
 	if (!bus) {
+		kfree(priv->bus_desc.provider_name);
 		kfree(priv);
 		return -ENODEV;
 	}
@@ -81,6 +82,7 @@ static int of_pmem_region_remove(struct platform_device *pdev)
 	struct of_pmem_private *priv = platform_get_drvdata(pdev);
 
 	nvdimm_bus_unregister(priv->bus);
+	kfree(priv->bus_desc.provider_name);
 	kfree(priv);
 
 	return 0;
-- 
2.24.1
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WARNING: multiple messages have this Message-ID (diff)
From: Vaibhav Jain <vaibhav@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-nvdimm@lists.01.org
Cc: Vaibhav Jain <vaibhav@linux.ibm.com>,
	"Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Vishal Verma <vishal.l.verma@intel.com>,
	"Oliver O'Halloran" <oohall@gmail.com>,
	stable@vger.kernel.org
Subject: [PATCH] libnvdimm/of_pmem: Fix leaking bus_desc.provider_name in some paths
Date: Thu, 23 Jan 2020 08:48:47 +0530	[thread overview]
Message-ID: <20200123031847.149325-1-vaibhav@linux.ibm.com> (raw)

String 'bus_desc.provider_name' allocated inside
of_pmem_region_probe() will leak in case call to nvdimm_bus_register()
fails or when of_pmem_region_remove() is called.

This minor patch ensures that 'bus_desc.provider_name' is freed in
error path for of_pmem_region_probe() as well as in
of_pmem_region_remove().

Cc: stable@vger.kernel.org
Fixes:49bddc73d15c2("libnvdimm/of_pmem: Provide a unique name for bus provider")
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
---
 drivers/nvdimm/of_pmem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvdimm/of_pmem.c b/drivers/nvdimm/of_pmem.c
index 8224d1431ea9..9cb76f9837ad 100644
--- a/drivers/nvdimm/of_pmem.c
+++ b/drivers/nvdimm/of_pmem.c
@@ -36,6 +36,7 @@ static int of_pmem_region_probe(struct platform_device *pdev)
 
 	priv->bus = bus = nvdimm_bus_register(&pdev->dev, &priv->bus_desc);
 	if (!bus) {
+		kfree(priv->bus_desc.provider_name);
 		kfree(priv);
 		return -ENODEV;
 	}
@@ -81,6 +82,7 @@ static int of_pmem_region_remove(struct platform_device *pdev)
 	struct of_pmem_private *priv = platform_get_drvdata(pdev);
 
 	nvdimm_bus_unregister(priv->bus);
+	kfree(priv->bus_desc.provider_name);
 	kfree(priv);
 
 	return 0;
-- 
2.24.1


WARNING: multiple messages have this Message-ID (diff)
From: Vaibhav Jain <vaibhav@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-nvdimm@lists.01.org
Cc: Vishal Verma <vishal.l.verma@intel.com>,
	stable@vger.kernel.org, Oliver O'Halloran <oohall@gmail.com>,
	"Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
	Vaibhav Jain <vaibhav@linux.ibm.com>,
	Dan Williams <dan.j.williams@intel.com>
Subject: [PATCH] libnvdimm/of_pmem: Fix leaking bus_desc.provider_name in some paths
Date: Thu, 23 Jan 2020 08:48:47 +0530	[thread overview]
Message-ID: <20200123031847.149325-1-vaibhav@linux.ibm.com> (raw)

String 'bus_desc.provider_name' allocated inside
of_pmem_region_probe() will leak in case call to nvdimm_bus_register()
fails or when of_pmem_region_remove() is called.

This minor patch ensures that 'bus_desc.provider_name' is freed in
error path for of_pmem_region_probe() as well as in
of_pmem_region_remove().

Cc: stable@vger.kernel.org
Fixes:49bddc73d15c2("libnvdimm/of_pmem: Provide a unique name for bus provider")
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
---
 drivers/nvdimm/of_pmem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvdimm/of_pmem.c b/drivers/nvdimm/of_pmem.c
index 8224d1431ea9..9cb76f9837ad 100644
--- a/drivers/nvdimm/of_pmem.c
+++ b/drivers/nvdimm/of_pmem.c
@@ -36,6 +36,7 @@ static int of_pmem_region_probe(struct platform_device *pdev)
 
 	priv->bus = bus = nvdimm_bus_register(&pdev->dev, &priv->bus_desc);
 	if (!bus) {
+		kfree(priv->bus_desc.provider_name);
 		kfree(priv);
 		return -ENODEV;
 	}
@@ -81,6 +82,7 @@ static int of_pmem_region_remove(struct platform_device *pdev)
 	struct of_pmem_private *priv = platform_get_drvdata(pdev);
 
 	nvdimm_bus_unregister(priv->bus);
+	kfree(priv->bus_desc.provider_name);
 	kfree(priv);
 
 	return 0;
-- 
2.24.1


             reply	other threads:[~2020-01-23  3:19 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-23  3:18 Vaibhav Jain [this message]
2020-01-23  3:18 ` [PATCH] libnvdimm/of_pmem: Fix leaking bus_desc.provider_name in some paths Vaibhav Jain
2020-01-23  3:18 ` Vaibhav Jain
2020-02-04 15:29 ` Aneesh Kumar K.V
2020-02-04 15:29   ` Aneesh Kumar K.V
2020-02-18 21:03 ` Jeff Moyer
2020-02-18 21:03   ` Jeff Moyer
2020-02-18 21:03   ` Jeff Moyer

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