summaryrefslogtreecommitdiff
path: root/net/bluetooth/hci_core.c
diff options
context:
space:
mode:
authorLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2024-02-28 18:49:26 +0300
committerLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2024-03-07 01:26:22 +0300
commit81137162bfaa7278785b24c1fd2e9e74f082e8e4 (patch)
tree944a0875e6f12bf11393874812043f7fc96cf555 /net/bluetooth/hci_core.c
parentde4e88ec58c4202efd1f02eebb4939bbf6945358 (diff)
downloadlinux-81137162bfaa7278785b24c1fd2e9e74f082e8e4.tar.xz
Bluetooth: hci_core: Fix possible buffer overflow
struct hci_dev_info has a fixed size name[8] field so in the event that hdev->name is bigger than that strcpy would attempt to write past its size, so this fixes this problem by switching to use strscpy. Fixes: dcda165706b9 ("Bluetooth: hci_core: Fix build warnings") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'net/bluetooth/hci_core.c')
-rw-r--r--net/bluetooth/hci_core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 6ca4c0df9f9c..230d2bbb933b 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -908,7 +908,7 @@ int hci_get_dev_info(void __user *arg)
else
flags = hdev->flags;
- strcpy(di.name, hdev->name);
+ strscpy(di.name, hdev->name, sizeof(di.name));
di.bdaddr = hdev->bdaddr;
di.type = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4);
di.flags = flags;