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| 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 09:32:08 +0200 |
| commit | a7e67521c4f2074a8a2d21dd5bd3fb01d86c4d6f (patch) | |
| tree | f3b9e8df2e59a9a86f595a767f9479ffdf16cfa0 /drivers/iommu | |
| parent | 4cc90ae05e9b0520edef9aa756edb400bef6838e (diff) | |
| download | linux-stable-a7e67521c4f2074a8a2d21dd5bd3fb01d86c4d6f.tar.gz linux-stable-a7e67521c4f2074a8a2d21dd5bd3fb01d86c4d6f.tar.bz2 linux-stable-a7e67521c4f2074a8a2d21dd5bd3fb01d86c4d6f.zip | |
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 a7d516f973dd..10068a481e22 100644 --- a/drivers/iommu/intel-svm.c +++ b/drivers/iommu/intel-svm.c @@ -389,6 +389,7 @@ 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; |