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target-ppc: kvm: Fix memory overflow issue about strncat()
strncat() will append additional '\0' to destination buffer, so need additional 1 byte for it, or may cause memory overflow, just like other area within QEMU have done. And can use g_strdup_printf() instead of strncat(), which may be more easier understanding. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
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