From 3a40bef49305f8327635b81ac8be52a3ca063d5a Mon Sep 17 00:00:00 2001 From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Date: Mon, 4 Jan 2021 10:38:31 -0800 Subject: gatt: Fix potential buffer out-of-bound When client features is read check if the offset is within the cli_feat bounds. Fixes: https://github.com/bluez/bluez/issues/70 --- src/gatt-database.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/src/gatt-database.c +++ b/src/gatt-database.c @@ -1084,6 +1084,11 @@ static void cli_feat_read_cb(struct gatt goto done; } + if (offset >= sizeof(state->cli_feat)) { + ecode = BT_ATT_ERROR_INVALID_OFFSET; + goto done; + } + len = sizeof(state->cli_feat) - offset; value = len ? &state->cli_feat[offset] : NULL;