• Stafford Horne's avatar
    crypto: skcipher - Fix -Wstringop-truncation warnings · 58104852
    Stafford Horne authored
    [ Upstream commit cefd769fd0192c84d638f66da202459ed8ad63ba ]
    
    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: 's avatarStafford Horne <shorne@gmail.com>
    Signed-off-by: 's avatarHerbert Xu <herbert@gondor.apana.org.au>
    Signed-off-by: 's avatarSasha Levin <alexander.levin@microsoft.com>
    Signed-off-by: 's avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    58104852
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