[ Upstream commit 6183d5a51866f3acdeeb66b75e87d44025b01a55 ]
No check is enforced for the return value of kzalloc,
which may lead to NULL-pointer dereference.
The patch fixes this issue.
Signed-off-by: Kangjie Lu <kjlu@xxxxxxx>
Reviewed-by: Mukesh Ojha <mojha@xxxxxxxxxxxxxx>
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/thunderbolt/property.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/thunderbolt/property.c b/drivers/thunderbolt/property.c
index b2f0d6386ceea..ead18c532b53d 100644
--- a/drivers/thunderbolt/property.c
+++ b/drivers/thunderbolt/property.c
@@ -578,7 +578,12 @@ int tb_property_add_text(struct tb_property_dir *parent, const char *key,
return -ENOMEM;
property->length = size / 4;
- property->value.data = kzalloc(size, GFP_KERNEL);
+ property->value.text = kzalloc(size, GFP_KERNEL);
+ if (!property->value.text) {
+ kfree(property);
+ return -ENOMEM;
+ }
+
strcpy(property->value.text, text);
list_add_tail(&property->list, &parent->properties);
--
2.20.1
