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Avoid mmap leak if we get a consensus diff we can't use.

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Fixes CID 1440819; bug not in any released Tor.
This commit is contained in:
Nick Mathewson 2018-11-02 13:30:55 -04:00
parent 3e2423d19b
commit 18a4eaf5c1
1 changed files with 1 additions and 0 deletions
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src/feature/dirclient/dirclient.c
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@ -2221,6 +2221,7 @@ handle_response_fetch_consensus(dir_connection_t *conn,
if (!consensus_body) { if (!consensus_body) {
log_warn(LD_DIR, "Received a consensus diff, but we can't find " log_warn(LD_DIR, "Received a consensus diff, but we can't find "
"any %s-flavored consensus in our current cache.",flavname); "any %s-flavored consensus in our current cache.",flavname);
tor_munmap_file(mapped_consensus);
networkstatus_consensus_download_failed(0, flavname); networkstatus_consensus_download_failed(0, flavname);
// XXXX if this happens too much, see below // XXXX if this happens too much, see below
return -1; return -1;