mirror-linux/tools/testing
Ricardo Cañuelo 9f4c391dc2 selftests/lkdtm: Disable CONFIG_UBSAN_TRAP in test config
[ Upstream commit cf77bf6988 ]

The lkdtm selftest config fragment enables CONFIG_UBSAN_TRAP to make the
ARRAY_BOUNDS test kill the calling process when an out-of-bound access
is detected by UBSAN. However, after this [1] commit, UBSAN is triggered
under many new scenarios that weren't detected before, such as in struct
definitions with fixed-size trailing arrays used as flexible arrays. As
a result, CONFIG_UBSAN_TRAP=y has become a very aggressive option to
enable except for specific situations.

`make kselftest-merge` applies CONFIG_UBSAN_TRAP=y to the kernel config
for all selftests, which makes many of them fail because of system hangs
during boot.

This change removes the config option from the lkdtm kselftest and
configures the ARRAY_BOUNDS test to look for UBSAN reports rather than
relying on the calling process being killed.

[1] commit 2d47c6956a ("ubsan: Tighten UBSAN_BOUNDS on GCC")'

Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230802063252.1917997-1-ricardo.canuelo@collabora.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-28 17:06:54 +00:00
..
crypto/chacha20-s390
cxl
fault-injection
ktest ktest.pl: Add RUN_TIMEOUT option with default unlimited 2023-03-10 09:34:27 +01:00
kunit
memblock memblock tests: fix warning ‘struct seq_file’ declared inside parameter list 2023-10-06 14:56:56 +02:00
nvdimm
radix-tree XArray: Do not return sibling entries from xa_load() 2023-09-13 09:43:00 +02:00
scatterlist
selftests selftests/lkdtm: Disable CONFIG_UBSAN_TRAP in test config 2023-11-28 17:06:54 +00:00
vsock