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| author | Vsevolod Stakhov <vsevolod@rspamd.com> | 2024-03-22 17:07:58 +0000 |
|---|---|---|
| committer | Vsevolod Stakhov <vsevolod@rspamd.com> | 2024-03-22 17:07:58 +0000 |
| commit | 2038f3c92afaaeceab3e7107a38c06f8d555ae53 (patch) | |
| tree | 707f8ed7a9cde54f0466772ac90270cbedee6f7d /src/libserver | |
| parent | 05636d9af847923a6f1e538897b085cb3dcdf5d0 (diff) | |
| download | rspamd-2038f3c92afaaeceab3e7107a38c06f8d555ae53.tar.gz rspamd-2038f3c92afaaeceab3e7107a38c06f8d555ae53.zip | |
[CritFix] Protect regexp matcher from regexps with empty patterns
Issue: #4885
Closes: #4885
Diffstat (limited to 'src/libserver')
| -rw-r--r-- | src/libserver/re_cache.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libserver/re_cache.c b/src/libserver/re_cache.c index 647375bcd..0644980da 100644 --- a/src/libserver/re_cache.c +++ b/src/libserver/re_cache.c @@ -632,6 +632,11 @@ rspamd_re_cache_process_pcre(struct rspamd_re_runtime *rt, if (max_hits > 0 && r >= max_hits) { break; } + + if (start >= end) { + /* We found all matches, so no more hits are possible (protect from empty patterns) */ + break; + } } rt->results[id] += r; |