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bech32: fix overflow bug.

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Copied from upstream:

 2b0aac650c

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2018-10-31 11:43:49 +10:30
parent 1935614979
commit a1898b699d
1 changed files with 1 additions and 1 deletions
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2
common/bech32.c
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@ -99,7 +99,7 @@ int bech32_decode(char* hrp, uint8_t *data, size_t *data_len, const char *input,
++(*data_len);
}
hrp_len = input_len - (1 + *data_len);
if (hrp_len < 1 || *data_len < 6) {
if (1 + *data_len >= input_len || *data_len < 6) {
return 0;
}
*(data_len) -= 6;