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mbedtls_net_poll() and mbedtls_net_recv_timeout() rely on select(), which represents sets of file descriptors through the fd_set type. This type cannot hold file descriptors larger than FD_SETSIZE. Make sure that these functions identify this failure code. Without a proper range check of the file descriptor in the mbedtls_net_xxx function, this test fails when running with UBSan: ``` net_poll beyond FD_SETSIZE ........................................ source/library/net_sockets.c:482:9: runtime error: index 16 out of bounds for type '__fd_mask [16]' SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior source/library/net_sockets.c:482:9 in ``` This is a non-regression test for https://github.com/ARMmbed/mbedtls/issues/4169 . The implementation of this test is specific to Unix-like platforms. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com> |
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.jenkins | ||
configs | ||
data_files | ||
docker/bionic | ||
git-scripts | ||
include/test | ||
scripts | ||
src | ||
suites | ||
.gitignore | ||
CMakeLists.txt | ||
compat-in-docker.sh | ||
compat.sh | ||
context-info.sh | ||
Descriptions.txt | ||
make-in-docker.sh | ||
Makefile | ||
ssl-opt-in-docker.sh | ||
ssl-opt.sh |