lwIP - A Lightweight TCP/IP stack - Patches: patch #10198, SLIP: Fix appending received pbuf...
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patch #10198: SLIP: Fix appending received pbuf to the linked list
Submitter: | David Cermak <david_cermak> | ||
Submitted: | Tue 12 Apr 2022 11:09:11 AM UTC | ||
Category: | None | Priority: | 5 - Normal |
Status: | None | Privacy: | Public |
Assigned to: | None | Open/Closed: | Open |
Planned Release: | None |
Attached Files
Depends on the following items: None found
Items that depend on this one: None found
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Follows 1 latest change.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2022-04-12 | david_cermak | Attached File | - | Added Fix-SLIP-RX-linked-list-append.patch, #53081 |
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Corresponding source code
Append to the linked list of pbuf objects was broken so that the second (and subsequent) packets received in a SLIP transaction would be appended to themselves and consequently lost.
This resulted in these packets being dropped and the system suffering extreme memory leakage.
Reported and fixed by @webworxshop, https://github.com/espressif/esp-lwip/pull/25