https://github.com/wummel/patool/pull/131
https://github.com/wummel/patool/issues/75

From abe06b7d8fbcd177d44f8eb8e3ac195badc70d25 Mon Sep 17 00:00:00 2001
From: Alfred Wingate <parona@protonmail.com>
Date: Thu, 7 Sep 2023 01:12:26 +0300
Subject: [PATCH] Disable sandbox for file(1) to allow correct output for
 compressed tar's

* Otherwise file(1) will refuse with
  "Fork-is-required-to-uncompress--but-disabled"

Closes: https://github.com/wummel/patool/issues/75
Signed-off-by: Alfred Wingate <parona@protonmail.com>
--- a/patoolib/util.py
+++ b/patoolib/util.py
@@ -240,7 +240,7 @@ def guess_mime_file (filename):
                 encoding = None
     if mime in Mime2Encoding:
         # try to look inside compressed archives
-        cmd = [file_prog, "--brief", "--mime", "--uncompress", filename]
+        cmd = [file_prog, "--brief", "--mime", "--uncompress", "--no-sandbox", filename]
         try:
             outparts = backtick(cmd).strip().split(";")
             mime2 = outparts[0].split(" ", 1)[0]
-- 
2.42.0