tree 8522be7349384c78ca9d49dd10745c6c80265eec
parent 11a48a5a18c63fd7621bb050228cebf13566e4d8
author Dan Carpenter <dan.carpenter@oracle.com> 1582820394 +0300
committer Jens Wiklander <jens.wiklander@linaro.org> 1583824324 +0100

tee: amdtee: out of bounds read in find_session()

The "index" is a user provided value from 0-USHRT_MAX.  If it's over
TEE_NUM_SESSIONS (31) then it results in an out of bounds read when we
call test_bit(index, sess->sess_mask).

Fixes: 757cc3e9ff1d ("tee: add AMD-TEE driver")
Acked-by: Rijo Thomas <Rijo-john.Thomas@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>