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AZTEC: change max byte count from assert() to if as overlong data

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can trigger it (fuzz_data (1st))
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gitlost
2024-01-04 22:43:41 +00:00
parent 3cb724253b
commit d42eb13841
5 changed files with 255 additions and 25 deletions
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4
backend/aztec.c
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@@ -576,7 +576,9 @@ static int aztec_text_process(const unsigned char source[], int src_len, int bp,
int big_batch = 0;
for (count = 0; ((i + count) < reduced_length) && (reduced_encode_mode[i + count] == 'B'); count++);
assert(count <= 2047 + 2078); /* Can't be more than 19968 / 8 = 2496 */
if (count > 2047 + 2078) { /* Can't be more than 19968 / 8 = 2496 */
return 0;
}
if (count > 2047) { /* Max 11-bit number */
big_batch = count > 2078 ? 2078 : count;