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NFC: Fix read crash with unexpectedly large MFC AUTH(0) response

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by WillyJL
https://github.com/flipperdevices/flipperzero-firmware/pull/4265/files
This commit is contained in:
MX
2025-08-27 03:09:52 +03:00
parent db4a613f6c
commit 5f7aaf2a04
1 changed files with 6 additions and 0 deletions
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6
lib/nfc/protocols/iso14443_3a/iso14443_3a_poller_i.c
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@@ -42,7 +42,13 @@ static Iso14443_3aError iso14443_3a_poller_standard_frame_exchange(
break;
}
if(bit_buffer_get_capacity_bytes(rx_buffer) <
bit_buffer_get_size_bytes(instance->rx_buffer)) {
ret = Iso14443_3aErrorBufferOverflow;
break;
}
bit_buffer_copy(rx_buffer, instance->rx_buffer);
if(!iso14443_crc_check(Iso14443CrcTypeA, instance->rx_buffer)) {
ret = Iso14443_3aErrorWrongCrc;
break;