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authorNick Mathewson <nickm@torproject.org>2017-06-05 12:00:27 -0400
committerNick Mathewson <nickm@torproject.org>2017-06-05 12:00:27 -0400
commit9ea3d0877a5be2762cfcb4d7c2015e5ec43a2055 (patch)
tree5ec92ea6238f65e527d9976156d075d679afd1ad
parent159ddf6ddedcad2bfc277a36fbde4aeb573be4cf (diff)
parent1a540b579248c04eba79c3e18d022054b238f6f5 (diff)
downloadtor-9ea3d0877a5be2762cfcb4d7c2015e5ec43a2055.tar.gz
tor-9ea3d0877a5be2762cfcb4d7c2015e5ec43a2055.zip
Merge branch 'maint-0.2.5' into maint-0.2.6
-rw-r--r--changes/bug224903
-rw-r--r--src/or/geoip.c2
2 files changed, 4 insertions, 1 deletions
diff --git a/changes/bug22490 b/changes/bug22490
new file mode 100644
index 0000000000..244dd50b36
--- /dev/null
+++ b/changes/bug22490
@@ -0,0 +1,3 @@
+ o Minor bugfixes (correctness):
+ - Avoid undefined behavior when parsing IPv6 entries from the geoip6
+ file. Fixes bug 22490; bugfix on 0.2.4.6-alpha.
diff --git a/src/or/geoip.c b/src/or/geoip.c
index 120ce479cc..82e28b9c1a 100644
--- a/src/or/geoip.c
+++ b/src/or/geoip.c
@@ -145,6 +145,7 @@ geoip_parse_entry(const char *line, sa_family_t family)
if (*line == '#')
return 0;
+ char buf[512];
if (family == AF_INET) {
unsigned int low, high;
if (tor_sscanf(line,"%u,%u,%2s", &low, &high, c) == 3 ||
@@ -155,7 +156,6 @@ geoip_parse_entry(const char *line, sa_family_t family)
goto fail;
country = c;
} else { /* AF_INET6 */
- char buf[512];
char *low_str, *high_str;
struct in6_addr low, high;
char *strtok_state;