[luatex] \expandafter\font\csname\endcsname causes segfault

[luigi scarso]

On Fri, Aug 19, 2022 at 8:12 AM Hironori KITAGAWA via luatex <luatex at tug.org>
wrote:

> Hello all,
>
> I found that foo.tex below causes Segmentation fault:
> --- foo.tex (luatex or lualatex)
> \input luaotfload.sty
> \font\foo=cmr10
> \expandafter\font\csname\endcsname=cmr10
> ---
> I don't know much about this,
> but the segfault does not occur if the line 1 or 2 is commented out.
>

Confirmed,
$ luatex --credits
This is LuaTeX, Version 1.15.1 (TeX Live 2023/dev)

The LuaTeX team is Hans Hagen, Hartmut Henkel, Taco Hoekwater, Luigi Scarso.

LuaTeX merges and builds upon (parts of) the code from these projects:

tex       : Donald Knuth
etex      : Peter Breitenlohner, Phil Taylor and friends
omega     : John Plaice and Yannis Haralambous
aleph     : Giuseppe Bilotta
pdftex    : Han The Thanh and friends
kpathsea  : Karl Berry, Olaf Weber and others
lua       : Roberto Ierusalimschy, Waldemar Celes and Luiz Henrique de
Figueiredo
metapost  : John Hobby, Taco Hoekwater, Luigi Scarso, Hans Hagen and friends
pplib     : Paweł Jackowski
fontforge : George Williams (partial)
luajit    : Mike Pall (used in LuajitTeX)

Compiled with libpng 1.6.37; using 1.6.37
Compiled with lua version 5.3.6
Compiled with mplib version 2.02
Compiled with zlib 1.2.12; using 1.2.12

Development id: 7538

I will check it.
-- 
luigi
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://tug.org/pipermail/luatex/attachments/20220819/7241ebd5/attachment.html>