[tor-commits] [tor/master] Changes file for 19063; use the BUG macro

[nickm@xxxxxxxxxxxxxx]

commit 1160ac1283a076acc6c660827ebeb84a111f27cc
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Sun Jun 19 12:38:15 2016 -0400

    Changes file for 19063; use the BUG macro
---
 changes/bug19063  | 4 ++++
 src/common/util.c | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/changes/bug19063 b/changes/bug19063
new file mode 100644
index 0000000..1002009
--- /dev/null
+++ b/changes/bug19063
@@ -0,0 +1,4 @@
+  o Minor features (code safety):
+    - In our integer-parsing functions, check that the maxiumum
+      value given is no smaller than the minimum value.  Closes ticket
+      19063; patch from U+039b.
diff --git a/src/common/util.c b/src/common/util.c
index 97a7e72..4b6df81 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -1112,7 +1112,7 @@ tor_digest256_is_zero(const char *digest)
   if (!next && *endptr)                                 \
     goto err;                                           \
   /* Illogical (max, min) inputs? */                    \
-  if (max < min)                                        \
+  if (BUG(max < min))                                   \
     goto err;                                           \
   /* Is r within limits? */                             \
   if (r < min || r > max)                               \

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