diff options
Diffstat (limited to 'security/selinux/ss/policydb.c')
| -rw-r--r-- | security/selinux/ss/policydb.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index 992a31530825..ace683838d80 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -541,21 +541,21 @@ static int policydb_index(struct policydb *p) rc = -ENOMEM; p->class_val_to_struct = - kmalloc(p->p_classes.nprim * sizeof(*(p->class_val_to_struct)), + kzalloc(p->p_classes.nprim * sizeof(*(p->class_val_to_struct)), GFP_KERNEL); if (!p->class_val_to_struct) goto out; rc = -ENOMEM; p->role_val_to_struct = - kmalloc(p->p_roles.nprim * sizeof(*(p->role_val_to_struct)), + kzalloc(p->p_roles.nprim * sizeof(*(p->role_val_to_struct)), GFP_KERNEL); if (!p->role_val_to_struct) goto out; rc = -ENOMEM; p->user_val_to_struct = - kmalloc(p->p_users.nprim * sizeof(*(p->user_val_to_struct)), + kzalloc(p->p_users.nprim * sizeof(*(p->user_val_to_struct)), GFP_KERNEL); if (!p->user_val_to_struct) goto out; @@ -964,7 +964,7 @@ int policydb_context_isvalid(struct policydb *p, struct context *c) * Role must be authorized for the type. */ role = p->role_val_to_struct[c->role - 1]; - if (!ebitmap_get_bit(&role->types, c->type - 1)) + if (!role || !ebitmap_get_bit(&role->types, c->type - 1)) /* role may not be associated with type */ return 0; @@ -1094,6 +1094,9 @@ static int str_read(char **strp, gfp_t flags, void *fp, u32 len) int rc; char *str; + if ((len == 0) || (len == (u32)-1)) + return -EINVAL; + str = kmalloc(len + 1, flags); if (!str) return -ENOMEM; @@ -2414,6 +2417,7 @@ int policydb_read(struct policydb *p, void *fp) } else tr->tclass = p->process_class; + rc = -EINVAL; if (!policydb_role_isvalid(p, tr->role) || !policydb_type_isvalid(p, tr->type) || !policydb_class_isvalid(p, tr->tclass) || |