aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/kmod.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/kmod.c')
-rw-r--r--kernel/kmod.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 9fcb53a11f87..bf0e231d9702 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -80,16 +80,16 @@ int __request_module(bool wait, const char *fmt, ...)
80#define MAX_KMOD_CONCURRENT 50 /* Completely arbitrary value - KAO */ 80#define MAX_KMOD_CONCURRENT 50 /* Completely arbitrary value - KAO */
81 static int kmod_loop_msg; 81 static int kmod_loop_msg;
82 82
83 ret = security_kernel_module_request();
84 if (ret)
85 return ret;
86
87 va_start(args, fmt); 83 va_start(args, fmt);
88 ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args); 84 ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
89 va_end(args); 85 va_end(args);
90 if (ret >= MODULE_NAME_LEN) 86 if (ret >= MODULE_NAME_LEN)
91 return -ENAMETOOLONG; 87 return -ENAMETOOLONG;
92 88
89 ret = security_kernel_module_request(module_name);
90 if (ret)
91 return ret;
92
93 /* If modprobe needs a service that is in a module, we get a recursive 93 /* If modprobe needs a service that is in a module, we get a recursive
94 * loop. Limit the number of running kmod threads to max_threads/2 or 94 * loop. Limit the number of running kmod threads to max_threads/2 or
95 * MAX_KMOD_CONCURRENT, whichever is the smaller. A cleaner method 95 * MAX_KMOD_CONCURRENT, whichever is the smaller. A cleaner method
@@ -520,13 +520,15 @@ int call_usermodehelper_pipe(char *path, char **argv, char **envp,
520 return -ENOMEM; 520 return -ENOMEM;
521 521
522 ret = call_usermodehelper_stdinpipe(sub_info, filp); 522 ret = call_usermodehelper_stdinpipe(sub_info, filp);
523 if (ret < 0) 523 if (ret < 0) {
524 goto out; 524 call_usermodehelper_freeinfo(sub_info);
525 return ret;
526 }
525 527
526 return call_usermodehelper_exec(sub_info, UMH_WAIT_EXEC); 528 ret = call_usermodehelper_exec(sub_info, UMH_WAIT_EXEC);
529 if (ret < 0) /* Failed to execute helper, close pipe */
530 filp_close(*filp, NULL);
527 531
528 out:
529 call_usermodehelper_freeinfo(sub_info);
530 return ret; 532 return ret;
531} 533}
532EXPORT_SYMBOL(call_usermodehelper_pipe); 534EXPORT_SYMBOL(call_usermodehelper_pipe);