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141af038dd
The usage of INT_MAX in this function confuses Coverity. I think the defect is bogus, however there is no protection against getting more than sizeof(s->inpkt) bytes from the character device backend. Rewrite the function to only fill in as much data as needed from buf into s->inpkt. The plen variable is replaced by a simple state machine and there is no need anymore to shift contents to the beginning of s->inpkt. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>