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[lwip-devel] [bug #57374] Assertion "this needs a pbuf in one piece!" fa

From: Erik Ekman
Subject: [lwip-devel] [bug #57374] Assertion "this needs a pbuf in one piece!" failed
Date: Mon, 29 Jun 2020 20:00:53 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36

Follow-up Comment #4, bug #57374 (project lwip):

[comment #2 comment #2:]
> When it crashes, the newly allocated rambuf has len 38, and the remaining
user data has len 37. (IP6_HLEN=40)

Sorry, rambuf has len 48.

[comment #3 comment #3:]
> According to the documentation, all outgoing packets are supposed to use
PBUF_RAM and the correct level (PBUF_TRANSPORT in this case).

This is probably the reason why this bug has been here unnoticed for many
years. But since there are no checks it should accept any kinds and lengths of


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