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  • Committer: Teddy Hogeborn
  • Date: 2018-02-18 01:03:48 UTC
  • Revision ID: teddy@recompile.se-20180218010348-hhjfox5t4py5n5zh
Client: Bug fix: Possible memory leak if failing to open /dev/null

* plugins.d/mandos-client.d (run_network_hooks): Try to open /dev/null
  before reading network hook dir in order to fail early in that case.

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Lines of Context:
plugin-runner.c
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__attribute__((nonnull))
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static void free_plugin(plugin *plugin_node){
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  for(char **arg = (plugin_node->argv)+1; *arg != NULL; arg++){
 
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  for(char **arg = plugin_node->argv; *arg != NULL; arg++){
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    free(*arg);
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  }
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  free(plugin_node->name);
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  free(plugin_node->argv);
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  for(char **env = plugin_node->environ; *env != NULL; env++){
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    free(*env);
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    case '?':                   /* --help */
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      state->flags &= ~(unsigned int)ARGP_NO_EXIT; /* force exit */
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      argp_state_help(state, state->out_stream, ARGP_HELP_STD_HELP);
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      __builtin_unreachable();
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    case -3:                    /* --usage */
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      state->flags &= ~(unsigned int)ARGP_NO_EXIT; /* force exit */
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      argp_state_help(state, state->out_stream,
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                      ARGP_HELP_USAGE | ARGP_HELP_EXIT_OK);
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      __builtin_unreachable();
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    case 'V':                   /* --version */
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      fprintf(state->out_stream, "%s\n", argp_program_version);
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      exit(EXIT_SUCCESS);
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      if(arg[0] == '\0'){
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        break;
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      }
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#if __GNUC__ >= 7
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      __attribute__((fallthrough));
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#else
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          /* FALLTHROUGH */
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#endif
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    default:
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      return ARGP_ERR_UNKNOWN;
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    }
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    new_plugin->pid = pid;
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    new_plugin->fd = pipefd[0];
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    if(debug){
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      fprintf(stderr, "Plugin %s started (PID %" PRIdMAX ")\n",
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              new_plugin->name, (intmax_t) (new_plugin->pid));
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    }
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    /* Unblock SIGCHLD so signal handler can be run if this process
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       has already completed */
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    ret = (int)TEMP_FAILURE_RETRY(sigprocmask(SIG_UNBLOCK,