In restore_template_fmt, when kstrdup fails, a non-NULL value will still be
returned, which causes a NULL pointer access in template_desc_init_fields.
Fixes:
c7d09367702e ("ima: support restoring multiple template formats")
Cc: stable@kernel.org
Co-developed-by: Jiaming Li <lijiaming30@huawei.com>
Signed-off-by: Jiaming Li <lijiaming30@huawei.com>
Signed-off-by: Huaxin Lu <luhuaxin1@huawei.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
template_desc->name = "";
template_desc->fmt = kstrdup(template_name, GFP_KERNEL);
- if (!template_desc->fmt)
+ if (!template_desc->fmt) {
+ kfree(template_desc);
+ template_desc = NULL;
goto out;
+ }
spin_lock(&template_list);
list_add_tail_rcu(&template_desc->list, &defined_templates);