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Message-ID: <20261027160404.GO3542221@port70.net>
Date: Tue, 27 Oct 2026 17:04:04 +0100
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: [PATCH] regex: fix BRE backref OOB read on multibyte input

this passes my regex tests with no regressions

pos_add_next is recomputed where necessary
(could have been saved/restored but that's more change)

the patch fixes 2 bugs, but they are related.

View attachment "0001-regex-fix-BRE-backref-OOB-read-on-multibyte-input.patch" of type "text/x-diff" (2768 bytes)

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