GNU bug report logs - #24751
26.0.50; Regex stack overflow not detected properly (gets "Variable binding depth exceeds max-specpdl-size")

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Package: emacs;

Reported by: npostavs <at> users.sourceforge.net

Date: Fri, 21 Oct 2016 03:54:01 UTC

Severity: normal

Tags: fixed, patch

Found in version 26.0.50

Fixed in version 26.1

Done: npostavs <at> users.sourceforge.net

Bug is archived. No further changes may be made.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: npostavs <at> users.sourceforge.net
Cc: 24751 <at> debbugs.gnu.org
Subject: bug#24751: 26.0.50; Regex stack overflow not detected properly (gets "Variable binding depth exceeds max-specpdl-size")
Date: Sat, 19 Nov 2016 12:02:14 +0200

One other comment: the value of 'extra' in emacs.c looks too small to
me.  If we want to safely allocate the failure stack off the run-time
C stack, we should make 'extra' large enough to cover a typical GC,
which can take as many as 30K stack frames.  So I'd enlarge 'extra' to
be something like 1500000.
This bug report was last modified 8 years and 196 days ago.

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