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Diffstat (limited to 'security/security.c')
-rw-r--r--security/security.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/security/security.c b/security/security.c
index 15efcf43e168..137a1f7e0e8b 100644
--- a/security/security.c
+++ b/security/security.c
@@ -232,6 +232,7 @@ static void __init lsm_set_blob_sizes(struct lsm_blob_sizes *needed)
lsm_set_blob_size(&needed->lbs_sock, &blob_sizes.lbs_sock);
lsm_set_blob_size(&needed->lbs_superblock, &blob_sizes.lbs_superblock);
lsm_set_blob_size(&needed->lbs_task, &blob_sizes.lbs_task);
+ lsm_set_blob_size(&needed->lbs_tun_dev, &blob_sizes.lbs_tun_dev);
lsm_set_blob_size(&needed->lbs_xattr_count,
&blob_sizes.lbs_xattr_count);
}
@@ -410,6 +411,7 @@ static void __init ordered_lsm_init(void)
init_debug("sock blob size = %d\n", blob_sizes.lbs_sock);
init_debug("superblock blob size = %d\n", blob_sizes.lbs_superblock);
init_debug("task blob size = %d\n", blob_sizes.lbs_task);
+ init_debug("tun device blob size = %d\n", blob_sizes.lbs_tun_dev);
init_debug("xattr slots = %d\n", blob_sizes.lbs_xattr_count);
/*
@@ -4875,7 +4877,18 @@ EXPORT_SYMBOL(security_secmark_refcount_dec);
*/
int security_tun_dev_alloc_security(void **security)
{
- return call_int_hook(tun_dev_alloc_security, security);
+ int rc;
+
+ rc = lsm_blob_alloc(security, blob_sizes.lbs_tun_dev, GFP_KERNEL);
+ if (rc)
+ return rc;
+
+ rc = call_int_hook(tun_dev_alloc_security, *security);
+ if (rc) {
+ kfree(*security);
+ *security = NULL;
+ }
+ return rc;
}
EXPORT_SYMBOL(security_tun_dev_alloc_security);
@@ -4887,7 +4900,7 @@ EXPORT_SYMBOL(security_tun_dev_alloc_security);
*/
void security_tun_dev_free_security(void *security)
{
- call_void_hook(tun_dev_free_security, security);
+ kfree(security);
}
EXPORT_SYMBOL(security_tun_dev_free_security);