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commit 3d574a587dc3704e93bcd29b16d54d96069667b4
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Author: Christopher Faulet <cfaulet@haproxy.com>
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Date: Tue Jun 18 12:22:38 2019 +0200
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BUG/MEDIUM: mux-h2: Reset padlen when several frames are demux
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In the function h2_process_demux(), if several frames are parsed, the padding
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length must be reset between each frame. Otherwise we may wrongly think a frame
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has a padding block because the previous one was padded.
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This patch must be backported to 2.0 and 1.9.
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(cherry picked from commit dd2a5620d594523cd515a629e105a9a2b64345bb)
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Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
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diff --git a/src/mux_h2.c b/src/mux_h2.c
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index d02168df..c06d5d68 100644
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--- a/src/mux_h2.c
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+++ b/src/mux_h2.c
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@@ -2316,6 +2316,7 @@ static void h2_process_demux(struct h2c *h2c)
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break;
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}
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+ padlen = 0;
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if (h2_ft_bit(hdr.ft) & H2_FT_PADDED_MASK && hdr.ff & H2_F_PADDED) {
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/* If the frame is padded (HEADERS, PUSH_PROMISE or DATA),
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* we read the pad length and drop it from the remaining
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