lkml.org 
[lkml]   [2018]   [Jul]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 1/2] crypto: Fix -Wstringop-truncation warnings
On Mon, Jun 25, 2018 at 09:45:37PM +0900, Stafford Horne wrote:
> As of GCC 9.0.0 the build is reporting warnings like:
>
> crypto/ablkcipher.c: In function ‘crypto_ablkcipher_report’:
> crypto/ablkcipher.c:374:2: warning: ‘strncpy’ specified bound 64 equals destination size [-Wstringop-truncation]
> strncpy(rblkcipher.geniv, alg->cra_ablkcipher.geniv ?: "<default>",
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> sizeof(rblkcipher.geniv));
> ~~~~~~~~~~~~~~~~~~~~~~~~~
>
> This means the strnycpy might create a non null terminated string. Fix this by
> explicitly performing '\0' termination.
>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Max Filippov <jcmvbkbc@gmail.com>
> Cc: Eric Biggers <ebiggers3@gmail.com>
> Cc: Nick Desaulniers <nick.desaulniers@gmail.com>
> Signed-off-by: Stafford Horne <shorne@gmail.com>

Patch applied. Thanks.
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

\
 
 \ /
  Last update: 2018-07-08 18:45    [W:0.047 / U:10.856 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site