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btstack_tlv_flash_bank: assert tag fits into flash bank in iterator

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This commit is contained in:
Matthias Ringwald 2023-05-02 21:06:17 +02:00
parent ac72606302
commit 26c447f653
1 changed files with 5 additions and 0 deletions
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5
platform/embedded/btstack_tlv_flash_bank.c
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@ -141,6 +141,11 @@ static void btstack_tlv_flash_bank_write(btstack_tlv_flash_bank_t * self, int ba
// iterator // iterator
static void btstack_tlv_flash_bank_iterator_fetch_tag_len(btstack_tlv_flash_bank_t * self, tlv_iterator_t * it){ static void btstack_tlv_flash_bank_iterator_fetch_tag_len(btstack_tlv_flash_bank_t * self, tlv_iterator_t * it){
if (it->offset + 8 + self->delete_tag_len >= self->hal_flash_bank_impl->get_size(self->hal_flash_bank_context)){
it->tag = 0xffffffff;
return;
}
uint8_t entry[8]; uint8_t entry[8];
btstack_tlv_flash_bank_read(self, it->bank, it->offset, entry, 8); btstack_tlv_flash_bank_read(self, it->bank, it->offset, entry, 8);
it->tag = big_endian_read_32(entry, 0); it->tag = big_endian_read_32(entry, 0);