Package: auctex
Version: 13.2-1
Severity: serious
Justification: Policy 10.4, 9.1.1
X-Debbugs-Cc: stanislav.maslov...@gmail.com

Dear Maintainer,

Auctex script 'update-auctex-elisp.eperl' creates a tmpfile in the
root of the filesystem in a potentially dangerous way with
$(mktemp ./XXXXXXXX-el).

This temporary file also stays on the filesystem and
is not removed.

I noticed this after switching to testing: sometimes
after "apt upgrade" a UID=0 owned file with a random
name was created in the "/" directory, with the content
"(defun font-lock-fontify-syntactic-keywords-region (start
end))".

People in "#debin-next" helped me to find the source of
this problem. They also recommended to mark this bug as "serious".

Thanks, @cb and @petn-randall!

-- System Information:

Debian Release: trixie/sid
  APT prefers testing
  APT policy: (700, 'testing'), (500, 'oldstable-security'), (500, 'stable'), 
(500, 'oldstable'), (100, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.27-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, 
TAINT_UNSIGNED_MODULE
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8), LANGUAGE=en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages auctex depends on:
ii  debconf [debconf-2.0]  1.5.91
ii  emacs-gtk [emacs]      1:30.1+1-5
ii  emacsen-common         3.0.7
ii  preview-latex-style    13.2-1
ii  procps                 2:4.0.4-8

Versions of packages auctex recommends:
ii  ghostscript                10.05.0~dfsg-1
ii  texlive-latex-recommended  2024.20250309-1
ii  xpdf                       3.04+git20250304-1+b1

Versions of packages auctex suggests:
pn  catdvi   <none>
pn  dvipng   <none>
pn  lacheck  <none>

-- debconf information:
  auctex/doauto: Background

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