diff options
| author | Lu Baolu <baolu.lu@linux.intel.com> | 2018-02-24 13:42:27 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-24 09:36:33 +0200 |
| commit | 180d28f824ce68022a4600300e3b5bc98c3c0661 (patch) | |
| tree | 624833beccde27058a9fe0bdb35e0907f751ac52 /drivers/iommu | |
| parent | 5a999c2bef6880909901b5c56c81b920f89ed72f (diff) | |
iommu/vt-d: Fix a potential memory leak
commit bbe4b3af9d9e3172fb9aa1f8dcdfaedcb381fc64 upstream.
A memory block was allocated in intel_svm_bind_mm() but never freed
in a failure path. This patch fixes this by free it to avoid memory
leakage.
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.4+
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Fixes: 2f26e0a9c9860 ('iommu/vt-d: Add basic SVM PASID support')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-svm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c index 003b4a4d4b78..d7def26ccf79 100644 --- a/drivers/iommu/intel-svm.c +++ b/drivers/iommu/intel-svm.c @@ -382,6 +382,7 @@ int intel_svm_bind_mm(struct device *dev, int *pasid, int flags, struct svm_dev_ pasid_max - 1, GFP_KERNEL); if (ret < 0) { kfree(svm); + kfree(sdev); goto out; } svm->pasid = ret; |