nbd: fix use of two uninitialized bytes when connecting to a named export
Reported-by: Michal Privoznik <mprivoznik@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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nbd.c
2
nbd.c
@ -397,6 +397,7 @@ static int nbd_send_negotiate(NBDClient *client)
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rc = -EINVAL;
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TRACE("Beginning negotiation.");
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memset(buf, 0, sizeof(buf));
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memcpy(buf, "NBDMAGIC", 8);
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if (client->exp) {
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assert ((client->exp->nbdflags & ~65535) == 0);
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@ -406,7 +407,6 @@ static int nbd_send_negotiate(NBDClient *client)
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} else {
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cpu_to_be64w((uint64_t*)(buf + 8), NBD_OPTS_MAGIC);
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}
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memset(buf + 28, 0, 124);
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if (client->exp) {
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if (write_sync(csock, buf, sizeof(buf)) != sizeof(buf)) {
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