app: aboot: fix incorrect check for integer overflow
When we encounter a large DONTCARE chunk, the integer overflow check that was
implemented in commit 14cff317 will report a false failure.
For example, the following chunk header was observed:
[58840] === Chunk Header ===
[58840] chunk_type: 0xcac3
[58850] chunk_data_sz: 0x198ffe
[58850] total_size: 0xc
which is valid, but reported as:
"Bogus size sparse and chunk header"
The check for the 32-bit overflow when computing the actual chunk size should be
done only for RAW chunk, instead.
Issue: FP2A10-106
Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Change-Id: I89930a66448b4d3baaba3bc28227572362679caf
1 file changed