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authorPaolo Bonzini <pbonzini@redhat.com>2015-07-09 16:52:48 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2015-07-09 16:53:45 +0200
commit4f4f6976d80614e2d81cea4385885876f24bb257 (patch)
treea6f64e5e077d942def7e365d3a323a2e09afc967 /crypto/cipher-builtin.c
parentd09a6fde1590ca3a45b608b6873a680f208dfeb5 (diff)
downloadqemu-4f4f6976d80614e2d81cea4385885876f24bb257.tar.gz
crypto: fix builtin qcrypto_cipher_free
This was dereferencing a pointer before checking if it was NULL. Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> Reported-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'crypto/cipher-builtin.c')
-rw-r--r--crypto/cipher-builtin.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/crypto/cipher-builtin.c b/crypto/cipher-builtin.c
index c625cb40f7..912c1b947d 100644
--- a/crypto/cipher-builtin.c
+++ b/crypto/cipher-builtin.c
@@ -354,11 +354,13 @@ QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
void qcrypto_cipher_free(QCryptoCipher *cipher)
{
- QCryptoCipherBuiltin *ctxt = cipher->opaque;
+ QCryptoCipherBuiltin *ctxt;
+
if (!cipher) {
return;
}
+ ctxt = cipher->opaque;
ctxt->free(cipher);
g_free(cipher);
}