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-rw-r--r--changes/bug68015
-rw-r--r--src/or/rephist.c3
2 files changed, 7 insertions, 1 deletions
diff --git a/changes/bug6801 b/changes/bug6801
new file mode 100644
index 000000000..ef21acc98
--- /dev/null
+++ b/changes/bug6801
@@ -0,0 +1,5 @@
+ o Minor bugfixes:
+ - Avoid segfault when starting up having run with an extremely old
+ version of Tor and parsing its state file. Fixes bug 6801; bugfix on
+ 0.2.2.23-alpha.
+
diff --git a/src/or/rephist.c b/src/or/rephist.c
index 1c5b51110..f9c0b5beb 100644
--- a/src/or/rephist.c
+++ b/src/or/rephist.c
@@ -1675,7 +1675,8 @@ rep_hist_load_bwhist_state_section(bw_array_t *b,
uint64_t v, mv;
int i,ok,ok_m;
- int have_maxima = (smartlist_len(s_values) == smartlist_len(s_maxima));
+ int have_maxima = s_maxima && s_values &&
+ (smartlist_len(s_values) == smartlist_len(s_maxima));
if (s_values && s_begins >= now - NUM_SECS_BW_SUM_INTERVAL*NUM_TOTALS) {
start = s_begins - s_interval*(smartlist_len(s_values));