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selftests/resctrl: Return NULL if malloc_and_init_memory() did not alloc mem

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[ Upstream commit 22a8be2803 ]

malloc_and_init_memory() in fill_buf isn't checking if memalign()
successfully allocated memory or not before accessing the memory.

Check the return value of memalign() and return NULL if allocating
aligned memory fails.

Fixes: a2561b12fe ("selftests/resctrl: Add built in benchmark")
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ilpo Järvinen 2023-02-15 15:05:57 +02:00 committed by Greg Kroah-Hartman
parent ae6803b663
commit 0bf90aac43
1 changed files with 2 additions and 0 deletions
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2
tools/testing/selftests/resctrl/fill_buf.c
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@ -68,6 +68,8 @@ static void *malloc_and_init_memory(size_t s)
size_t s64;
void *p = memalign(PAGE_SIZE, s);
if (!p)
return NULL;
p64 = (uint64_t *)p;
s64 = s / sizeof(uint64_t);