[PATCH] SELinux: handle sel_make_bools() failure in selinuxfs
This patch fixes error handling in sel_make_bools(), where currently we'd
get a memory leak via security_get_bools() and try to kfree() the wrong
pointer if called again.
Signed-off-by: James Morris <jmorris@namei.org>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 8eb140d..a45cc97 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -879,7 +879,7 @@
if (sscanf(page, "%d", &new_value) != 1)
goto out;
- if (new_value) {
+ if (new_value && bool_pending_values) {
security_set_bools(bool_num, bool_pending_values);
}
@@ -952,6 +952,7 @@
/* remove any existing files */
kfree(bool_pending_values);
+ bool_pending_values = NULL;
sel_remove_bools(dir);
@@ -1002,6 +1003,7 @@
}
return ret;
err:
+ kfree(values);
d_genocide(dir);
ret = -ENOMEM;
goto out;