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riscv: Use kvmalloc_array on relocation_hashtable

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[ Upstream commit 8578b2f7e1fb79d4b92b62fbbe913548bb363654 ]

The number of relocations may be a huge value that is unallocatable
by kmalloc. Use kvmalloc instead so that it does not fail.

Fixes: 8fd6c51423 ("riscv: Add remaining module relocations")
Suggested-by: Clément Léger <cleger@rivosinc.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Will Pierce <wgpierce17@gmail.com>
Link: https://lore.kernel.org/r/20250402081426.5197-1-wgpierce17@gmail.com
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Will Pierce
2025-04-02 01:14:26 -07:00
committed by Greg Kroah-Hartman
parent cfdcd213dd
commit c8c3f8e7a7
1 changed files with 5 additions and 4 deletions
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9
arch/riscv/kernel/module.c
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@@ -648,7 +648,7 @@ process_accumulated_relocations(struct module *me,
kfree(bucket_iter);
}
kfree(*relocation_hashtable);
kvfree(*relocation_hashtable);
}
static int add_relocation_to_accumulate(struct module *me, int type,
@@ -752,9 +752,10 @@ initialize_relocation_hashtable(unsigned int num_relocations,
hashtable_size <<= should_double_size;
*relocation_hashtable = kmalloc_array(hashtable_size,
sizeof(**relocation_hashtable),
GFP_KERNEL);
/* Number of relocations may be large, so kvmalloc it */
*relocation_hashtable = kvmalloc_array(hashtable_size,
sizeof(**relocation_hashtable),
GFP_KERNEL);
if (!*relocation_hashtable)
return 0;