tree b3f7b9570b7f440ba87ebe86d3b8345507da6e0d
parent b01ce91745ded3af3b048b44d1d98d094ac4ad15
author Gilles Peskine <Gilles.Peskine@arm.com> 1614192584 +0100
committer Gilles Peskine <Gilles.Peskine@arm.com> 1614613065 +0100

Fix stack buffer overflow in net functions with large file descriptor

Fix a stack buffer overflow with mbedtls_net_poll() and
mbedtls_net_recv_timeout() when given a file descriptor that is beyond
FD_SETSIZE. The bug was due to not checking that the file descriptor
is within the range of an fd_set object.

Fix #4169

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>