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Backport c425e03b28 for https://github.com/haproxy/haproxy/issues/2074

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Tristan 2023-03-28 07:00:35 +01:00
parent 6fa58b1fce
commit 5c47064a60
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1 changed files with 75 additions and 0 deletions
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haproxy/patches-stable/2-MINOR-quic-missing-STREAM-frame-type-updated.patch Normal file
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@ -0,0 +1,75 @@
From c425e03b28168d96c32afcd9bfb86bcb66b733be Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20L=C3=A9caille?= <flecaille@haproxy.com>
Date: Mon, 20 Mar 2023 14:32:59 +0100
Subject: [PATCH] BUG/MINOR: quic: Missing STREAM frame type updated
This patch follows this commit which was not sufficient:
BUG/MINOR: quic: Missing STREAM frame data pointer updates
Indeed, after updating the ->offset field, the bit which informs the
frame builder of its presence must be systematically set.
This bug was revealed by the following BUG_ON() from
quic_build_stream_frame() :
bug condition "!!(frm->type & 0x04) != !!stream->offset.key" matched at src/quic_frame.c:515
This should fix the last crash occured on github issue #2074.
Must be backported to 2.6 and 2.7.
---
include/haproxy/quic_frame.h | 6 +++++-
src/quic_conn.c | 6 +++---
2 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/include/haproxy/quic_frame.h b/include/haproxy/quic_frame.h
index f75d7e65fcb8..cf489f759ba4 100644
--- a/include/haproxy/quic_frame.h
+++ b/include/haproxy/quic_frame.h
@@ -255,11 +255,15 @@ static inline void qc_frm_free(struct quic_frame **frm)
}
/* Move forward <strm> STREAM frame by <data> bytes. */
-static inline void qc_stream_frm_mv_fwd(struct quic_stream *strm, uint64_t data)
+static inline void qc_stream_frm_mv_fwd(struct quic_frame *frm, uint64_t data)
{
+ struct quic_stream *strm = &frm->stream;
struct buffer cf_buf;
+ /* Set offset bit if not already there. */
strm->offset.key += data;
+ frm->type |= QUIC_STREAM_FRAME_TYPE_OFF_BIT;
+
strm->len -= data;
cf_buf = b_make(b_orig(strm->buf),
b_size(strm->buf),
diff --git a/src/quic_conn.c b/src/quic_conn.c
index f4a36f0e4ad8..25ece803909d 100644
--- a/src/quic_conn.c
+++ b/src/quic_conn.c
@@ -1905,7 +1905,7 @@ static inline int qc_requeue_nacked_pkt_tx_frms(struct quic_conn *qc,
else if (strm_frm->offset.key < stream_desc->ack_offset) {
uint64_t diff = stream_desc->ack_offset - strm_frm->offset.key;
- qc_stream_frm_mv_fwd(strm_frm, diff);
+ qc_stream_frm_mv_fwd(frm, diff);
TRACE_DEVEL("updated partially acked frame",
QUIC_EV_CONN_PRSAFRM, qc, frm);
}
@@ -2562,7 +2562,7 @@ static void qc_dup_pkt_frms(struct quic_conn *qc,
else if (strm_frm->offset.key < stream_desc->ack_offset) {
uint64_t diff = stream_desc->ack_offset - strm_frm->offset.key;
- qc_stream_frm_mv_fwd(strm_frm, diff);
+ qc_stream_frm_mv_fwd(frm, diff);
TRACE_DEVEL("updated partially acked frame",
QUIC_EV_CONN_PRSAFRM, qc, frm);
}
@@ -7301,7 +7301,7 @@ static inline int qc_build_frms(struct list *outlist, struct list *inlist,
else if (strm->offset.key < stream_desc->ack_offset) {
uint64_t diff = stream_desc->ack_offset - strm->offset.key;
- qc_stream_frm_mv_fwd(strm, diff);
+ qc_stream_frm_mv_fwd(cf, diff);
TRACE_DEVEL("updated partially acked frame",
QUIC_EV_CONN_PRSAFRM, qc, cf);
}