[PATCH 3/8] firmware: vpd: avoid potential use-after-free when destroying section

[Dmitry Torokhov]

We should not free info->key before we remove sysfs attribute that uses
this data as its name.

Fixes: 049a59db34eb ("firmware: Google VPD sysfs driver")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
---
 drivers/firmware/google/vpd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/google/vpd.c b/drivers/firmware/google/vpd.c
index acf3f3cdc3f8..b3a6e918418b 100644
--- a/drivers/firmware/google/vpd.c
+++ b/drivers/firmware/google/vpd.c
@@ -157,8 +157,8 @@ static void vpd_section_attrib_destroy(struct vpd_section *sec)
 	struct vpd_attrib_info *temp;
 
 	list_for_each_entry_safe(info, temp, &sec->attribs, list) {
-		kfree(info->key);
 		sysfs_remove_bin_file(sec->kobj, &info->bin_attr);
+		kfree(info->key);
 		kfree(info);
 	}
 }
-- 
2.13.0.219.gdb65acc882-goog