[lwip-devel] [bug #62857] sendmsg(), if called with last item in msg_iov array to have .iov_len=0, build pbuf chain which cannot be cloned

[Alex Riesen]

Follow-up Comment #2, bug #62857 (project lwip):

[comment #1 comment #1:]
> From the description below, I'm tempted to change pbuf_clone() to just skip
zero-sized pbufs (if anything has been copied yet). I guess that would be
enough to fix this?

I think so. Maybe also change pbuf_clone to not ignore pbuf_copy errors? (Free
the allocated pbuf and return NULL)


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