Check for trailing input garbage in tor_compress_impl() when decompressing

Fixes #22629.
This commit is contained in:
teor 2017-06-16 09:41:29 +10:00
parent 8e1b37a4aa
commit 952c9073ad
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@ -139,7 +139,15 @@ tor_compress_impl(int compress,
if (compress || complete_only) {
goto err;
} else {
goto done;
if (in_len != 0) {
log_fn(protocol_warn_level, LD_PROTOCOL,
"Unexpected extra input while decompressing");
log_debug(LD_GENERAL, "method: %d level: %d at len: %zd",
method, compression_level, in_len);
goto err;
} else {
goto done;
}
}
break;
case TOR_COMPRESS_BUFFER_FULL: {