tree bfb9f7c560538fdca6cf8065c08ed7ef061eb823
parent 07f88d7582c80522b1e83b9bbc473d338e48fb85
author Christopher Faulet <cfaulet@haproxy.com> 1618996281 +0200
committer Christopher Faulet <cfaulet@haproxy.com> 1618999992 +0200

BUG/MEDIUM: mux-h2: Fix dfl calculation when merging CONTINUATION frames

When header are splitted over several frames, payload of HEADERS and
CONTINUATION frames are merged to form a unique HEADERS frame before
decoding the payload. To do so, info about the current frame are updated
(dff, dfl..) with info of the next one. Here there is a bug when the frame
length (dfl) is update. We must add the next frame length (hdr.dfl) and not
only the amount of data found in the buffer (clen). Because HEADERS frames
are decoded in one pass, dfl value is the whole frame length or 0. nothing
intermediary.

This patch must be backported as far as 2.0.