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Check dump size in ibf_dump_write

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Erik Berlin 2025-06-27 16:34:46 -07:00 • committed by Nobuyoshi Nakada
parent 0828dff3f8
commit 49c138c18b
1 changed files with 6 additions and 1 deletions
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7
compile.c
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@ -12602,8 +12602,13 @@ static ibf_offset_t
ibf_dump_write(struct ibf_dump *dump, const void *buff, unsigned long size)
{
ibf_offset_t pos = ibf_dump_pos(dump);
#if SIZEOF_LONG > SIZEOF_INT
/* ensure the resulting dump does not exceed UINT_MAX */
if (size >= UINT_MAX || pos + size >= UINT_MAX) {
rb_raise(rb_eRuntimeError, "dump size exceeds");
}
#endif
rb_str_cat(dump->current_buffer->str, (const char *)buff, size);
/* TODO: overflow check */
return pos;
}