Hi, this patch series follows GitHub issue #3426:
https://github.com/haproxy/haproxy/issues/3426 It fixes malformed HTTP/1.1 chunked output when an HTTP/3 request without Content-Length is forwarded to an H1 backend. The bug was observed with 3.4.0-fc300e9 and reproduced on current master. Without the fix, a backend may receive a later chunk size derived from the cumulative H3 DATA length, reject the request, and HAProxy returns 500 to the client. Patch 1 updates the H3 unknown-length accounting to increment qcs->sd->kip by the current DATA frame length instead of assigning the cumulative h3s->data_len value. Patch 2 adds a QUIC regression test. It fails against parent 1e144c488c612092067e07f18618482c64d33d17 with an oversized chunk (BE6A) followed by EOF, and passes with the fix. Validated with patched 3.4.0-fc300e9 on FreeBSD 15.1 against the same H1 backend used in production, and with the new VTC on current master. Please find attached: 0001-BUG-MEDIUM-h3-increment-unknown-request-payload-leng.patch 0002-REGTESTS-quic-test-H3-request-without-content-length.patch Regards, Andrea
0001-BUG-MEDIUM-h3-increment-unknown-request-payload-leng.patch
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0002-REGTESTS-quic-test-H3-request-without-content-length.patch
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