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Fix a fun heisenbug in memoize_protover_flags()

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After we clear the protover map for getting full, we need to
re-create it, since we are about to use it.

This is a bugfix for bug 28558. It is a bugfix for the code from
ticket 27225, which is not in any released Tor.  Found by Google
OSS-Fuzz, as issue 11475.
This commit is contained in:
Nick Mathewson 2018-11-21 07:38:38 -05:00
parent b406fdae4f
commit 469f47ef8d
1 changed files with 1 additions and 0 deletions
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src/core/or/versions.c
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@ -399,6 +399,7 @@ memoize_protover_summary(protover_summary_flags_t *out,
if (strmap_size(protover_summary_map) >= MAX_PROTOVER_SUMMARY_MAP_LEN) {
protover_summary_cache_free_all();
protover_summary_map = strmap_new();
}
const protover_summary_flags_t *cached =