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Fix aligning in file_mmap_aligned() #1158

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Merged
merged 1 commit into from
Mar 5, 2025
Merged

Fix aligning in file_mmap_aligned() #1158

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8 changes: 6 additions & 2 deletions src/provider/provider_file_memory.c
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Original file line number Diff line number Diff line change
Expand Up @@ -404,8 +404,12 @@ static umf_result_t file_mmap_aligned(file_memory_provider_t *file_provider,
"inserted a value to the map of memory mapping (addr=%p, size=%zu)",
ptr, extended_size);

file_provider->base_mmap = ptr;
file_provider->size_mmap = extended_size;
// align the new pointer
uintptr_t aligned_ptr = ALIGN_UP_SAFE((uintptr_t)ptr, alignment);
size_t aligned_size = extended_size - (aligned_ptr - (uintptr_t)ptr);

file_provider->base_mmap = (void *)aligned_ptr;
file_provider->size_mmap = aligned_size;
file_provider->offset_mmap = 0;

return UMF_RESULT_SUCCESS;
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