55a01cab83
When _FORTIFY_SOURCE=2, glibc version is 2.35, and GCC version is
12.1.0, the compiler complains as follows:
In file included from /usr/include/string.h:535,
from /home/alarm/q/var/qemu/include/qemu/osdep.h:99,
from ../crypto/block-luks.c:21:
In function 'memset',
inlined from 'qcrypto_block_luks_store_key' at ../crypto/block-luks.c:843:9:
/usr/include/bits/string_fortified.h:59:10: error: 'splitkeylen' may be used uninitialized [-Werror=maybe-uninitialized]
59 | return __builtin___memset_chk (__dest, __ch, __len,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
60 | __glibc_objsize0 (__dest));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
../crypto/block-luks.c: In function 'qcrypto_block_luks_store_key':
../crypto/block-luks.c:699:12: note: 'splitkeylen' was declared here
699 | size_t splitkeylen;
| ^~~~~~~~~~~
It seems the compiler cannot see that splitkeylen will not be used
when splitkey is NULL. Suppress the warning by initializing splitkeylen
even when splitkey stays NULL.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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| .. | ||
| aes.c | ||
| afalg.c | ||
| afalgpriv.h | ||
| afsplit.c | ||
| akcipher-gcrypt.c.inc | ||
| akcipher-nettle.c.inc | ||
| akcipher.c | ||
| akcipherpriv.h | ||
| block-luks-priv.h | ||
| block-luks.c | ||
| block-luks.h | ||
| block-qcow.c | ||
| block-qcow.h | ||
| block.c | ||
| blockpriv.h | ||
| cipher-afalg.c | ||
| cipher-builtin.c.inc | ||
| cipher-gcrypt.c.inc | ||
| cipher-gnutls.c.inc | ||
| cipher-nettle.c.inc | ||
| cipher.c | ||
| cipherpriv.h | ||
| der.c | ||
| der.h | ||
| hash-afalg.c | ||
| hash-gcrypt.c | ||
| hash-glib.c | ||
| hash-gnutls.c | ||
| hash-nettle.c | ||
| hash.c | ||
| hashpriv.h | ||
| hmac-gcrypt.c | ||
| hmac-glib.c | ||
| hmac-gnutls.c | ||
| hmac-nettle.c | ||
| hmac.c | ||
| hmacpriv.h | ||
| init.c | ||
| ivgen-essiv.c | ||
| ivgen-essiv.h | ||
| ivgen-plain64.c | ||
| ivgen-plain64.h | ||
| ivgen-plain.c | ||
| ivgen-plain.h | ||
| ivgen.c | ||
| ivgenpriv.h | ||
| meson.build | ||
| pbkdf-gcrypt.c | ||
| pbkdf-gnutls.c | ||
| pbkdf-nettle.c | ||
| pbkdf-stub.c | ||
| pbkdf.c | ||
| random-gcrypt.c | ||
| random-gnutls.c | ||
| random-none.c | ||
| random-platform.c | ||
| rsakey-builtin.c.inc | ||
| rsakey-nettle.c.inc | ||
| rsakey.c | ||
| rsakey.h | ||
| secret_common.c | ||
| secret_keyring.c | ||
| secret.c | ||
| sm4.c | ||
| tls-cipher-suites.c | ||
| tlscreds.c | ||
| tlscredsanon.c | ||
| tlscredspriv.h | ||
| tlscredspsk.c | ||
| tlscredsx509.c | ||
| tlssession.c | ||
| trace-events | ||
| trace.h | ||
| xts.c | ||