Thread (7 messages) 7 messages, 3 authors, 2021-08-16

Re: [PATCH ima-evm-utils] evmctl: fix memory leak in get_password

From: Bruno Meneguele <hidden>
Date: 2021-08-11 17:52:53

On Wed, Aug 11, 2021 at 01:31:49PM -0400, Mimi Zohar wrote:
On Wed, 2021-08-11 at 13:51 -0300, Bruno Meneguele wrote:
quoted
On Wed, Aug 11, 2021 at 10:52:00AM -0400, Mimi Zohar wrote:
quoted
quoted
-	return pwd;
+	return password;
Wouldn't a simpler fix be to test "pwd" here?
        if (!pwd)
                free(password);
        return pwd;
The problem is on success, when 'pwd' is actually not NULL.
With that, I can't free(password). I would need to asprintf(pwd, ...) or
strndup(password). Because of that, I thought it would be cleaner to
remove 'password' completely.
I see.  So instead of "return pwd" as suggested above,

        if (!pwd) {
                free(password);
                password = NULL;  <== set or return NULL
        }

        return password;
Ack. Will send a v2 with this change.

Thanks Mimi.

-- 
bmeneg 
PGP Key: http://bmeneg.com/pubkey.txt

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