[PATCH 27/81] digsig: Fix memory leakage in digsig_verify_rsa()
Herton Ronaldo Krzesinski
herton.krzesinski at canonical.com
Tue Feb 19 18:48:50 UTC 2013
3.5.7.6 -stable review patch. If anyone has any objections, please let me know.
------------------
From: YOSHIFUJI Hideaki <yoshfuji at linux-ipv6.org>
commit 7810cc1e7721220f1ed2a23ca95113d6434f6dcd upstream.
digsig_verify_rsa() does not free kmalloc'ed buffer returned by
mpi_get_buffer().
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji at linux-ipv6.org>
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin at intel.com>
Signed-off-by: James Morris <james.l.morris at oracle.com>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski at canonical.com>
---
lib/digsig.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/digsig.c b/lib/digsig.c
index 8c0e629..dc2be7e 100644
--- a/lib/digsig.c
+++ b/lib/digsig.c
@@ -162,6 +162,8 @@ static int digsig_verify_rsa(struct key *key,
memset(out1, 0, head);
memcpy(out1 + head, p, l);
+ kfree(p);
+
err = pkcs_1_v1_5_decode_emsa(out1, len, mblen, out2, &len);
if (err)
goto err;
--
1.7.9.5
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