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selinux: propagate error codes in cond_read_list()

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These are passed back when the security module gets loaded.

The original code always returned -1 (-EPERM) on error but after this
patch it can return -EINVAL, or -ENOMEM or propagate the error code from
cond_read_node().  cond_read_node() still returns -1 all the time, but I
fix that in a later patch.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by:  Stephen D. Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Dan Carpenter 2010-06-12 20:51:40 +02:00 committed by James Morris
parent 9e0bd4cba4
commit 5241c1074f
1 changed files with 6 additions and 4 deletions
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10
security/selinux/ss/conditional.c
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@ -445,8 +445,8 @@ int cond_read_list(struct policydb *p, void *fp)
int rc;
rc = next_entry(buf, fp, sizeof buf);
if (rc < 0)
return -1;
if (rc)
return rc;
len = le32_to_cpu(buf[0]);
@ -455,11 +455,13 @@ int cond_read_list(struct policydb *p, void *fp)
goto err;
for (i = 0; i < len; i++) {
rc = -ENOMEM;
node = kzalloc(sizeof(struct cond_node), GFP_KERNEL);
if (!node)
goto err;
if (cond_read_node(p, node, fp) != 0)
rc = cond_read_node(p, node, fp);
if (rc)
goto err;
if (i == 0)
@ -472,7 +474,7 @@ int cond_read_list(struct policydb *p, void *fp)
err:
cond_list_destroy(p->cond_list);
p->cond_list = NULL;
return -1;
return rc;
}
/* Determine whether additional permissions are granted by the conditional