commit c072485125763d11da918aec3232b9e3b113d8dd
author Zim <zezeozue@google.com> Thu Jun 03 16:08:20 2021 +0100
committer android-build-team Robot <android-build-team-robot@google.com> Wed Jun 16 01:11:03 2021 +0000
tree 92a8820fa180927238791e1e31eab81dbde15527
parent 1a3f0b9b4c09b67f6e9a2c2db940cfd490928c44

DO NOT MERGE Fix floating point to text conversion overflow

Any precision >=2147483647 will cause a buffer overflow.
For instance, executing the following statement will segfault

select (printf('%.2147483647G',0.01));

Later sqlite versions fixed this by hard-coding a hard-limit of
100k million on the precision of floating point to text conversions
https://sqlite.org/src/info/d08d3405878d394e

We fix this on earlier versions by setting the compile time flag
to the same 100k million

Bug: 153352319
Test: builds
Change-Id: Ied86cf81f0064da9d3d963ecf943894bc1ae1a93
(cherry picked from commit 4810d35fd17c3ab2f1fcbe9a0c73a8c587623d89)

dist/Android.bp

diff --git a/dist/Android.bp b/dist/Android.bp
index 3bb9a10..b63021d 100644
--- a/dist/Android.bp
+++ b/dist/Android.bp
@@ -39,6 +39,7 @@
         "-DSQLITE_ENABLE_BATCH_ATOMIC_WRITE",
         "-DBIONIC_IOCTL_NO_SIGNEDNESS_OVERLOAD",
         "-DSQLITE_DEFAULT_LEGACY_ALTER_TABLE",
+        "-DSQLITE_PRINTF_PRECISION_LIMIT=100000000",
         "-Wno-unused-parameter",
         "-Werror",