netdev - Re: [PATCH][next] tipc: fix update of the uninitialized variable err

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Date:   Mon, 11 Nov 2019 22:05:29 -0800 (PST)
From:   David Miller <davem@...hat.com>
To:     colin.king@...onical.com
Cc:     jon.maloy@...csson.com, ying.xue@...dreiver.com,
        tuong.t.lien@...tech.com.au, netdev@...r.kernel.org,
        tipc-discussion@...ts.sourceforge.net,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] tipc: fix update of the uninitialized variable
 err

From: Colin King <colin.king@...onical.com>
Date: Mon, 11 Nov 2019 12:33:34 +0000

> From: Colin Ian King <colin.king@...onical.com>
> 
> Variable err is not uninitialized and hence can potentially contain
> any garbage value.  This may cause an error when logical or'ing the
> return values from the calls to functions crypto_aead_setauthsize or
> crypto_aead_setkey.  Fix this by setting err to the return of
> crypto_aead_setauthsize rather than or'ing in the return into the
> uninitialized variable
> 
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: fc1b6d6de220 ("tipc: introduce TIPC encryption & authentication")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Applied.