diff mbox series

test: aes: fix memleak

Message ID 1581005579-11826-1-git-send-email-philippe.reynes@softathome.com
State Accepted
Commit 58b209cf6060db60375a2ca9fb21febfae3b8f31
Headers show
Series test: aes: fix memleak | expand

Commit Message

Philippe REYNES Feb. 6, 2020, 4:12 p.m. UTC
In the first version, the result of malloc is checked
with ut_assertnonnull. But on a fail, this macro exit
the function, so previously malloc are not freed.

So to avoid a memleak, we don't use ut_assertnonnull,
but simply check the return of malloc. If one has failed,
we freed all the allocated memory and quit the function.

Reported-by: Coverity (CID: 284403)
Reported-by: Coverity (CID: 284404)
Reported-by: Coverity (CID: 284405)
Reported-by: Coverity (CID: 284406)
Reported-by: Coverity (CID: 284407)
Signed-off-by: Philippe Reynes <philippe.reynes at softathome.com>
---
 test/lib/test_aes.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

Comments

Tom Rini Feb. 13, 2020, 10:12 p.m. UTC | #1
On Thu, Feb 06, 2020 at 05:12:59PM +0100, Philippe Reynes wrote:

> In the first version, the result of malloc is checked
> with ut_assertnonnull. But on a fail, this macro exit
> the function, so previously malloc are not freed.
> 
> So to avoid a memleak, we don't use ut_assertnonnull,
> but simply check the return of malloc. If one has failed,
> we freed all the allocated memory and quit the function.
> 
> Reported-by: Coverity (CID: 284403)
> Reported-by: Coverity (CID: 284404)
> Reported-by: Coverity (CID: 284405)
> Reported-by: Coverity (CID: 284406)
> Reported-by: Coverity (CID: 284407)
> Signed-off-by: Philippe Reynes <philippe.reynes at softathome.com>

Applied to u-boot/master, thanks!
diff mbox series

Patch

diff --git a/test/lib/test_aes.c b/test/lib/test_aes.c
index b7b4b77..fb8a0b1 100644
--- a/test/lib/test_aes.c
+++ b/test/lib/test_aes.c
@@ -88,17 +88,17 @@  static int _lib_test_aes_run(struct unit_test_state *uts, int key_len,
 
 	/* Allocate all the buffer */
 	key = malloc(key_len);
-	ut_assertnonnull(key);
 	key_exp = malloc(key_exp_len);
-	ut_assertnonnull(key_exp);
 	iv = malloc(AES_BLOCK_LENGTH);
-	ut_assertnonnull(iv);
 	nocipher = malloc(num_block * AES_BLOCK_LENGTH);
-	ut_assertnonnull(nocipher);
 	ciphered = malloc((num_block + 1) * AES_BLOCK_LENGTH);
-	ut_assertnonnull(ciphered);
 	uncipher = malloc((num_block + 1) * AES_BLOCK_LENGTH);
-	ut_assertnonnull(uncipher);
+
+	if (!key || !key_exp || !iv || !nocipher || !ciphered || !uncipher) {
+		printf("%s: can't allocate memory\n", __func__);
+		ret = -1;
+		goto out;
+	}
 
 	/* Initialize all buffer */
 	rand_buf(key, key_len);
@@ -127,6 +127,7 @@  static int _lib_test_aes_run(struct unit_test_state *uts, int key_len,
 		ret = -1;
 	};
 
+ out:
 	/* Free all the data */
 	free(key);
 	free(key_exp);