diff mbox

[intel-sgx-kernel-dev,v4,2/8] intel_sgx: fix null pointer deref in sgx_invalidate()

Message ID 20161201205632.8593-3-jarkko.sakkinen@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jarkko Sakkinen Dec. 1, 2016, 8:56 p.m. UTC 
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
---
 drivers/platform/x86/intel_sgx_util.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/platform/x86/intel_sgx_util.c b/drivers/platform/x86/intel_sgx_util.c
index d1c4c71..3878d9a 100644
--- a/drivers/platform/x86/intel_sgx_util.c
+++ b/drivers/platform/x86/intel_sgx_util.c
@@ -173,6 +173,8 @@  void sgx_invalidate(struct sgx_encl *encl)
 		vma = sgx_find_vma(encl, addr);
 		if (vma)
 			sgx_zap_tcs_ptes(encl, vma);
+		else
+			break;
 	}
 
 	encl->vma_cnt = 0;