Reinette Chatre 1b4f406a29 selftests/resctrl: Protect against array overrun during iMC config parsing ... [ Upstream commit 48ed4e799e ] The MBM and MBA tests need to discover the event and umask with which to configure the performance event used to measure read memory bandwidth. This is done by parsing the /sys/bus/event_source/devices/uncore_imc_<imc instance>/events/cas_count_read file for each iMC instance that contains the formatted output: "event=<event>,umask=<umask>" Parsing of cas_count_read contents is done by initializing an array of MAX_TOKENS elements with tokens (deliminated by "=,") from this file. Remove the unnecessary append of a delimiter to the string needing to be parsed. Per the strtok() man page: "delimiter bytes at the start or end of the string are ignored". This has no impact on the token placement within the array. After initialization, the actual event and umask is determined by parsing the tokens directly following the "event" and "umask" tokens respectively. Iterating through the array up to index "i < MAX_TOKENS" but then accessing index "i + 1" risks array overrun during the final iteration. Avoid array overrun by ensuring that the index used within for loop will always be valid. Fixes: 1d3f08687d ("selftests/resctrl: Read memory bandwidth from perf IMC counter and from resctrl file system") Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-12-05 13:53:05 +01:00
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crypto/chacha20-s390
cxl	cxl/port: Fix use-after-free, permit out-of-order decoder shutdown	2024-11-08 16:30:56 +01:00
fault-injection
ktest	ktest.pl: Avoid false positives with grub2 skip regex	2024-10-17 15:26:34 +02:00
kunit	RISC-V SoC Kconfig Updates for v6.10	2024-05-07 11:02:56 +02:00
memblock	memblock tests: add memblock_overlaps_region_checks	2024-06-05 10:22:22 +03:00
nvdimm	testing: nvdimm: Add MODULE_DESCRIPTION() macros	2024-06-17 18:43:08 -05:00
radix-tree	bitmap-6.11-rc1	2024-07-26 09:50:36 -07:00
scatterlist
selftests	selftests/resctrl: Protect against array overrun during iMC config parsing	2024-12-05 13:53:05 +01:00
vsock	test/vsock: add install target	2024-07-13 15:17:35 -07:00