tree f38716c5a42ab967769c73c262773a4aeea7ca1d
parent 6667a78c9bb8233d1938f35aff7daa7cfc1ed11f
author Gilles Peskine <Gilles.Peskine@arm.com> 1614192584 +0100
committer Gilles Peskine <Gilles.Peskine@arm.com> 1614265008 +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>