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Bugfix: initiate_stratum: Ensure extranonce2 size is not negative (which could lead to exploits later as too little memory gets allocated)

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Thanks to Mick Ayzenberg <mick@dejavusecurity.com> for finding this!
This commit is contained in:
Luke Dashjr 2014-06-05 17:10:43 +00:00 committed by Noel Maersk
parent f0e47ec8ec
commit bac5831b35
1 changed files with 2 additions and 1 deletions
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3
util.c
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@ -2505,7 +2505,8 @@ resend:
goto out; goto out;
} }
n2size = json_integer_value(json_array_get(res_val, 2)); n2size = json_integer_value(json_array_get(res_val, 2));
if (!n2size) { if (n2size < 1)
{
applog(LOG_INFO, "Failed to get n2size in initiate_stratum"); applog(LOG_INFO, "Failed to get n2size in initiate_stratum");
free(sessionid); free(sessionid);
free(nonce1); free(nonce1);