From: Sergey Poznyakoff <gray@gnu.org>
Date: Fri, 25 Oct 2024 10:40:32 +0000 (+0300)
Subject: Add missing safety check
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bd06b114d973115bb3462707ab078d93bcb8047b;p=thirdparty%2Ftar.git

Add missing safety check

* src/system.c (sys_exec_info_script): Check if fdopen succeded.
Fix by Matteo Croce.
---

diff --git a/src/system.c b/src/system.c
index d349bd67..1195255e 100644
--- a/src/system.c
+++ b/src/system.c
@@ -838,6 +838,12 @@ sys_exec_info_script (const char **archive_name, int volume_number)
 
       xclose (p[PWRITE]);
       fp = fdopen (p[PREAD], "r");
+      if (!fp)
+	{
+	  signal (SIGPIPE, saved_handler);
+	  call_arg_error ("fdopen", info_script_option);
+	  return -1;
+	}
       rc = getline (&buf, &size, fp);
       fclose (fp);