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authorItay Iellin <ieitayie@gmail.com>2022-05-07 08:32:48 -0400
committerLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2022-05-11 17:18:42 -0700
commit103a2f3255a95991252f8f13375c3a96a75011cd (patch)
tree2f5f2f9d3e75e96564fc899c10bdf0b08e6c4454 /include
parent3f95a7472d14abef284d8968734fe2ae7ff4845f (diff)
Bluetooth: Fix the creation of hdev->name
Set a size limit of 8 bytes of the written buffer to "hdev->name" including the terminating null byte, as the size of "hdev->name" is 8 bytes. If an id value which is greater than 9999 is allocated, then the "snprintf(hdev->name, sizeof(hdev->name), "hci%d", id)" function call would lead to a truncation of the id value in decimal notation. Set an explicit maximum id parameter in the id allocation function call. The id allocation function defines the maximum allocated id value as the maximum id parameter value minus one. Therefore, HCI_MAX_ID is defined as 10000. Signed-off-by: Itay Iellin <ieitayie@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/net/bluetooth/hci_core.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 8abd08245326..62d7b81b1cb7 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -36,6 +36,9 @@
/* HCI priority */
#define HCI_PRIO_MAX 7
+/* HCI maximum id value */
+#define HCI_MAX_ID 10000
+
/* HCI Core structures */
struct inquiry_data {
bdaddr_t bdaddr;