pkcheck: do not attempt to parse /proc/PID/cmdline if pid is invalid

Error opening `/proc/0/cmdline': Failed to open file ?/proc/0/cmdline?: No such file or directory
polkit-org · Dec 17, 2024 · eb97a9f · eb97a9f
1 parent b8c6264
commit eb97a9f
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/programs/pkcheck.c b/src/programs/pkcheck.c
@@ -156,6 +156,8 @@ _polkit_subject_get_cmdline (PolkitSubject *subject)
     }
 
   pid = polkit_unix_process_get_pid (POLKIT_UNIX_PROCESS (process));
+  if (pid <= 0)
+    goto out;
 
   filename = g_strdup_printf ("/proc/%d/cmdline", pid);