At the moment of the check, `cmd->num_cis` holds the value of 0x1f, which is the max number of elements in the `cmd->cis[]` array at declaration, which is 0x1f.
So, avoid using 0x1f directly, and instead use `cmd->num_cis`. Similarly to this other patch[1]. Link: https://lore.kernel.org/linux-hardening/ZivaHUQyDDK9fXEk@neat/ [1] Signed-off-by: Gustavo A. R. Silva <gustavo...@kernel.org> --- net/bluetooth/hci_sync.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c index 6e15594d3565..af9513f3c451 100644 --- a/net/bluetooth/hci_sync.c +++ b/net/bluetooth/hci_sync.c @@ -6559,7 +6559,7 @@ int hci_le_create_cis_sync(struct hci_dev *hdev) cis->cis_handle = cpu_to_le16(conn->handle); aux_num_cis++; - if (aux_num_cis >= 0x1f) + if (aux_num_cis >= cmd->num_cis) break; } cmd->num_cis = aux_num_cis; -- 2.34.1
