diff --git a/infra/bots/jobs.json b/infra/bots/jobs.json
index d208d5b..c4ebb25 100644
--- a/infra/bots/jobs.json
+++ b/infra/bots/jobs.json
@@ -21,6 +21,7 @@
   "Build-Debian9-Clang-x86_64-Debug",
   "Build-Debian9-Clang-x86_64-Debug-ASAN",
   "Build-Debian9-Clang-x86_64-Debug-MSAN",
+  "Build-Debian9-Clang-x86_64-Debug-UBSAN_float_cast_overflow",
   "Build-Debian9-Clang-x86_64-Debug-Vulkan",
   "Build-Debian9-Clang-x86_64-Release",
   "Build-Debian9-Clang-x86_64-Release-ASAN",
@@ -30,6 +31,7 @@
   "Build-Debian9-Clang-x86_64-Release-SK_CPU_LIMIT_SSE41",
   "Build-Debian9-Clang-x86_64-Release-SK_FORCE_RASTER_PIPELINE_BLITTER",
   "Build-Debian9-Clang-x86_64-Release-TSAN",
+  "Build-Debian9-Clang-x86_64-Release-UBSAN_float_cast_overflow",
   "Build-Debian9-Clang-x86_64-Release-Vulkan",
   "Build-Debian9-GCC-arm-Debug-Chromecast",
   "Build-Debian9-GCC-arm-Release-Chromecast",
@@ -143,10 +145,12 @@
   "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug",
   "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-ASAN",
   "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-MSAN",
+  "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow",
   "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release",
   "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-ASAN",
   "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-Fast",
   "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-SK_FORCE_RASTER_PIPELINE_BLITTER",
+  "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow",
   "Perf-Debian9-GCC-GCE-CPU-AVX2-x86-Debug",
   "Perf-Debian9-GCC-GCE-CPU-AVX2-x86_64-Debug",
   "Perf-Debian9-GCC-GCE-CPU-AVX2-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE",
@@ -182,8 +186,10 @@
   "Perf-Ubuntu17-Clang-Golo-GPU-GT610-x86_64-Release-ASAN",
   "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug",
   "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-ASAN",
+  "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow",
   "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release",
   "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-ASAN",
+  "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow",
   "Perf-Ubuntu17-GCC-Golo-GPU-QuadroP400-x86_64-Release-Valgrind_AbandonGpuContext_SK_CPU_LIMIT_SSE41",
   "Perf-Ubuntu17-GCC-Golo-GPU-QuadroP400-x86_64-Release-Valgrind_SK_CPU_LIMIT_SSE41",
   "Perf-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Debug",
@@ -314,6 +320,7 @@
   "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug",
   "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-ASAN",
   "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-MSAN",
+  "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow",
   "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release",
   "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-ASAN",
   "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-Fast",
@@ -321,6 +328,7 @@
   "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-SK_CPU_LIMIT_SSE41",
   "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-SK_FORCE_RASTER_PIPELINE_BLITTER",
   "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-TSAN",
+  "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow",
   "Test-Debian9-GCC-GCE-CPU-AVX2-x86-Debug",
   "Test-Debian9-GCC-GCE-CPU-AVX2-x86_64-Debug",
   "Test-Debian9-GCC-GCE-CPU-AVX2-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE",
@@ -360,9 +368,11 @@
   "Test-Ubuntu17-Clang-Golo-GPU-GT610-x86_64-Release-TSAN",
   "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug",
   "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-ASAN",
+  "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow",
   "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release",
   "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-ASAN",
   "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-TSAN",
+  "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow",
   "Test-Ubuntu17-GCC-Golo-GPU-GT610-x86_64-Release-PreAbandonGpuContext",
   "Test-Ubuntu17-GCC-Golo-GPU-QuadroP400-x86_64-Release-Valgrind_AbandonGpuContext_SK_CPU_LIMIT_SSE41",
   "Test-Ubuntu17-GCC-Golo-GPU-QuadroP400-x86_64-Release-Valgrind_PreAbandonGpuContext_SK_CPU_LIMIT_SSE41",
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow.json
new file mode 100644
index 0000000..1821771
--- /dev/null
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow.json
@@ -0,0 +1,215 @@
+[
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "[START_DIR]/skia/bin/fetch-gn"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Release",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "[START_DIR]/skia/bin/gn",
+      "gen",
+      "[START_DIR]/out/Release",
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false sanitize=\"float-cast-overflow\" skia_enable_spirv_validation=false"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Release",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[START_DIR]/out/Release"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Release",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "name": "ninja"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "rmtree",
+      "results_dir"
+    ],
+    "infra_step": true,
+    "name": "rmtree results_dir"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "ensure-directory",
+      "--mode",
+      "0777",
+      "results_dir"
+    ],
+    "infra_step": true,
+    "name": "makedirs results_dir"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "rmtree",
+      "device_results_dir"
+    ],
+    "infra_step": true,
+    "name": "rmtree device_results_dir"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "ensure-directory",
+      "--mode",
+      "0777",
+      "device_results_dir"
+    ],
+    "infra_step": true,
+    "name": "makedirs device_results_dir"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skp/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SKP VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SKP_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SKP_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skimage/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded skimage VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SK_IMAGE_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SK_IMAGE_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/svg/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SVG VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SVG_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SVG_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[skia::flavor]/resources/symbolize_stack_trace.py",
+      "[START_DIR]",
+      "[START_DIR]/out/Release/dm",
+      "--some-flag"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "ASAN_OPTIONS": "symbolize=1 detect_leaks=1",
+      "BUILDTYPE": "Release",
+      "CHROME_HEADLESS": "1",
+      "LSAN_OPTIONS": "symbolize=1 print_suppressions=1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]:[START_DIR]/clang_linux/bin",
+      "SKIA_OUT": "[START_DIR]/out",
+      "UBSAN_OPTIONS": "symbolize=1 print_stacktrace=1"
+    },
+    "name": "symbolized dm"
+  },
+  {
+    "name": "$result",
+    "recipe_result": null,
+    "status_code": 0
+  }
+]
\ No newline at end of file
diff --git a/infra/bots/recipe_modules/flavor/examples/full.py b/infra/bots/recipe_modules/flavor/examples/full.py
index f845dbc..abe7478 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.py
+++ b/infra/bots/recipe_modules/flavor/examples/full.py
@@ -81,6 +81,7 @@
   'Perf-Chromecast-GCC-Chorizo-CPU-Cortex_A7-arm-Release',
   'Perf-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Release-ASAN',
   'Perf-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Release-MSAN',
+  'Perf-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow',
   'Perf-Ubuntu14-GCC-GCE-CPU-AVX2-x86_64-Release-CT_BENCH_1k_SKPs',
   'Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release',
   ('Test-Ubuntu-GCC-ShuttleA-GPU-GTX550Ti-x86_64-Release-'
diff --git a/infra/bots/recipe_modules/flavor/gn_flavor.py b/infra/bots/recipe_modules/flavor/gn_flavor.py
index 08a12be..a6591b9 100644
--- a/infra/bots/recipe_modules/flavor/gn_flavor.py
+++ b/infra/bots/recipe_modules/flavor/gn_flavor.py
@@ -80,7 +80,7 @@
     if extra_config == 'MSAN':
       args['skia_enable_gpu']     = 'false'
       args['skia_use_fontconfig'] = 'false'
-    if extra_config == 'ASAN':
+    if 'ASAN' in extra_config or 'UBSAN' in extra_config:
       args['skia_enable_spirv_validation'] = 'false'
     if extra_config == 'Mesa':
       args['skia_use_mesa'] = 'true'
@@ -114,10 +114,16 @@
     if compiler == 'Clang' and 'Win' in os:
       args['clang_win'] = '"%s"' % self.m.vars.slave_dir.join('clang_win')
 
+    sanitize = ''
+    if extra_config == 'UBSAN_float_cast_overflow':
+      sanitize = 'float-cast-overflow'
+    elif 'SAN' in extra_config:
+      sanitize = extra_config
+
     for (k,v) in {
       'cc':  cc,
       'cxx': cxx,
-      'sanitize': extra_config if 'SAN' in extra_config else '',
+      'sanitize': sanitize,
       'target_cpu': target_arch,
       'target_os': 'ios' if 'iOS' in extra_config else '',
       'windk': win_toolchain if 'Win' in os else '',
@@ -173,7 +179,7 @@
     elif self.m.vars.is_linux:
       cmd = ['catchsegv'] + cmd
 
-    if 'ASAN' == extra_config:
+    if 'ASAN' == extra_config or 'UBSAN' in extra_config:
       env[ 'ASAN_OPTIONS'] = 'symbolize=1 detect_leaks=1'
       env[ 'LSAN_OPTIONS'] = 'symbolize=1 print_suppressions=1'
       env['UBSAN_OPTIONS'] = 'symbolize=1 print_stacktrace=1'
diff --git a/infra/bots/recipes/perf.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow.json b/infra/bots/recipes/perf.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow.json
new file mode 100644
index 0000000..d8dda51
--- /dev/null
+++ b/infra/bots/recipes/perf.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow.json
@@ -0,0 +1,179 @@
+[
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skp/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SKP VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SKP_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SKP_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skimage/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded skimage VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SK_IMAGE_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SK_IMAGE_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/svg/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SVG VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SVG_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SVG_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "import os\nprint os.environ.get('SWARMING_BOT_ID', '')\n"
+    ],
+    "name": "get swarming bot id",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@print os.environ.get('SWARMING_BOT_ID', '')@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "import os\nprint os.environ.get('SWARMING_TASK_ID', '')\n"
+    ],
+    "name": "get swarming task id",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@print os.environ.get('SWARMING_TASK_ID', '')@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[skia::flavor]/resources/symbolize_stack_trace.py",
+      "[START_DIR]",
+      "[START_DIR]/out/Debug/nanobench",
+      "-i",
+      "[START_DIR]/skia/resources",
+      "--skps",
+      "[START_DIR]/skp",
+      "--images",
+      "[START_DIR]/skimage/nanobench",
+      "--svgs",
+      "[START_DIR]/svg",
+      "--pre_log",
+      "--scales",
+      "1.0",
+      "1.1",
+      "--nogpu",
+      "--config",
+      "8888",
+      "nonrendering",
+      "f16",
+      "srgb",
+      "565",
+      "--match",
+      "~^floor2int_undef$",
+      "~inc0.gif",
+      "~inc1.gif",
+      "~incInterlaced.gif",
+      "~inc0.jpg",
+      "~incGray.jpg",
+      "~inc0.wbmp",
+      "~inc1.wbmp",
+      "~inc0.webp",
+      "~inc1.webp",
+      "~inc0.ico",
+      "~inc1.ico",
+      "~inc0.png",
+      "~inc1.png",
+      "~inc2.png",
+      "~inc12.png",
+      "~inc13.png",
+      "~inc14.png",
+      "~inc0.webp",
+      "~inc1.webp"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "ASAN_OPTIONS": "symbolize=1 detect_leaks=1",
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "LSAN_OPTIONS": "symbolize=1 print_suppressions=1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]:[START_DIR]/clang_linux/bin",
+      "SKIA_OUT": "[START_DIR]/out",
+      "UBSAN_OPTIONS": "symbolize=1 print_stacktrace=1"
+    },
+    "name": "symbolized nanobench"
+  },
+  {
+    "name": "$result",
+    "recipe_result": null,
+    "status_code": 0
+  }
+]
\ No newline at end of file
diff --git a/infra/bots/recipes/perf.py b/infra/bots/recipes/perf.py
index 2fb54cf..b330fdc 100644
--- a/infra/bots/recipes/perf.py
+++ b/infra/bots/recipes/perf.py
@@ -198,6 +198,9 @@
     match.append('~shapes_mixed_10000_32x33')
     match.append('~shapes_rect_100_500x500')
     match.append('~shapes_rrect_10000_32x32')
+  if 'float_cast_overflow' in bot and 'CPU' in bot:
+    # skia:4632
+    match.append('~^floor2int_undef$')
 
   # We do not need or want to benchmark the decodes of incomplete images.
   # In fact, in nanobench we assert that the full image decode succeeds.
@@ -374,6 +377,7 @@
   'Perf-ChromeOS-Clang-Chromebook_C100p-GPU-MaliT764-arm-Release',
   'Perf-Chromecast-GCC-Chorizo-CPU-Cortex_A7-arm-Debug',
   'Perf-Chromecast-GCC-Chorizo-GPU-Cortex_A7-arm-Release',
+  'Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow',
   'Perf-Mac-Clang-MacMini7.1-CPU-AVX-x86_64-Release',
   'Perf-Mac-Clang-MacMini7.1-GPU-IntelIris5100-x86_64-Debug-CommandBuffer',
   'Perf-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Release',
diff --git a/infra/bots/recipes/test.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow.json b/infra/bots/recipes/test.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow.json
new file mode 100644
index 0000000..822bfc5
--- /dev/null
+++ b/infra/bots/recipes/test.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow.json
@@ -0,0 +1,551 @@
+[
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skp/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SKP VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SKP_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SKP_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skimage/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded skimage VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SK_IMAGE_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SK_IMAGE_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/svg/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SVG VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SVG_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SVG_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "import os\nprint os.environ.get('SWARMING_BOT_ID', '')\n"
+    ],
+    "name": "get swarming bot id",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@print os.environ.get('SWARMING_BOT_ID', '')@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "import os\nprint os.environ.get('SWARMING_TASK_ID', '')\n"
+    ],
+    "name": "get swarming task id",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@print os.environ.get('SWARMING_TASK_ID', '')@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[skia::flavor]/resources/symbolize_stack_trace.py",
+      "[START_DIR]",
+      "[START_DIR]/out/Debug/dm",
+      "--resourcePath",
+      "[START_DIR]/skia/resources",
+      "--skps",
+      "[START_DIR]/skp",
+      "--images",
+      "[START_DIR]/skimage/dm",
+      "--colorImages",
+      "[START_DIR]/skimage/colorspace",
+      "--nameByHash",
+      "--properties",
+      "gitHash",
+      "abc123",
+      "builder",
+      "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow",
+      "swarming_bot_id",
+      "skia-bot-123",
+      "swarming_task_id",
+      "123456",
+      "--svgs",
+      "[START_DIR]/svg",
+      "--key",
+      "arch",
+      "x86_64",
+      "compiler",
+      "Clang",
+      "configuration",
+      "Debug",
+      "cpu_or_gpu",
+      "CPU",
+      "cpu_or_gpu_value",
+      "AVX2",
+      "extra_config",
+      "UBSAN_float_cast_overflow",
+      "model",
+      "GCE",
+      "os",
+      "Debian9",
+      "--dont_write",
+      "pdf",
+      "--randomProcessorTest",
+      "--nogpu",
+      "--config",
+      "8888",
+      "srgb",
+      "pdf",
+      "565",
+      "f16",
+      "sp-8888",
+      "2ndpic-8888",
+      "lite-8888",
+      "gbr-8888",
+      "serialize-8888",
+      "tiles_rt-8888",
+      "pic-8888",
+      "--src",
+      "tests",
+      "gm",
+      "image",
+      "colorImage",
+      "--blacklist",
+      "f16",
+      "_",
+      "_",
+      "dstreadshuffle",
+      "gbr-8888",
+      "image",
+      "_",
+      "_",
+      "gbr-8888",
+      "colorImage",
+      "_",
+      "_",
+      "serialize-8888",
+      "gm",
+      "_",
+      "bleed_image",
+      "serialize-8888",
+      "gm",
+      "_",
+      "c_gms",
+      "serialize-8888",
+      "gm",
+      "_",
+      "colortype",
+      "serialize-8888",
+      "gm",
+      "_",
+      "colortype_xfermodes",
+      "serialize-8888",
+      "gm",
+      "_",
+      "drawfilter",
+      "serialize-8888",
+      "gm",
+      "_",
+      "fontmgr_bounds_0.75_0",
+      "serialize-8888",
+      "gm",
+      "_",
+      "fontmgr_bounds_1_-0.25",
+      "serialize-8888",
+      "gm",
+      "_",
+      "fontmgr_bounds",
+      "serialize-8888",
+      "gm",
+      "_",
+      "fontmgr_match",
+      "serialize-8888",
+      "gm",
+      "_",
+      "fontmgr_iter",
+      "serialize-8888",
+      "gm",
+      "_",
+      "imagemasksubset",
+      "serialize-8888",
+      "gm",
+      "_",
+      "bitmapfilters",
+      "serialize-8888",
+      "gm",
+      "_",
+      "bitmapshaders",
+      "serialize-8888",
+      "gm",
+      "_",
+      "bleed",
+      "serialize-8888",
+      "gm",
+      "_",
+      "bleed_alpha_bmp",
+      "serialize-8888",
+      "gm",
+      "_",
+      "bleed_alpha_bmp_shader",
+      "serialize-8888",
+      "gm",
+      "_",
+      "convex_poly_clip",
+      "serialize-8888",
+      "gm",
+      "_",
+      "extractalpha",
+      "serialize-8888",
+      "gm",
+      "_",
+      "filterbitmap_checkerboard_32_32_g8",
+      "serialize-8888",
+      "gm",
+      "_",
+      "filterbitmap_image_mandrill_64",
+      "serialize-8888",
+      "gm",
+      "_",
+      "shadows",
+      "serialize-8888",
+      "gm",
+      "_",
+      "simpleaaclip_aaclip",
+      "serialize-8888",
+      "gm",
+      "_",
+      "composeshader_bitmap",
+      "serialize-8888",
+      "gm",
+      "_",
+      "scaled_tilemodes_npot",
+      "serialize-8888",
+      "gm",
+      "_",
+      "scaled_tilemodes",
+      "serialize-8888",
+      "gm",
+      "_",
+      "typefacerendering_pfaMac",
+      "serialize-8888",
+      "gm",
+      "_",
+      "parsedpaths",
+      "serialize-8888",
+      "gm",
+      "_",
+      "ImageGeneratorExternal_rect",
+      "serialize-8888",
+      "gm",
+      "_",
+      "ImageGeneratorExternal_shader",
+      "serialize-8888",
+      "gm",
+      "_",
+      "shadow_utils",
+      "serialize-8888",
+      "gm",
+      "_",
+      "makecolorspace",
+      "serialize-8888",
+      "gm",
+      "_",
+      "bleed_alpha_image",
+      "serialize-8888",
+      "gm",
+      "_",
+      "bleed_alpha_image_shader",
+      "sp-8888",
+      "gm",
+      "_",
+      "drawfilter",
+      "pic-8888",
+      "gm",
+      "_",
+      "drawfilter",
+      "2ndpic-8888",
+      "gm",
+      "_",
+      "drawfilter",
+      "lite-8888",
+      "gm",
+      "_",
+      "drawfilter",
+      "sp-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-picture",
+      "pic-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-picture",
+      "2ndpic-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-picture",
+      "serialize-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-picture",
+      "sp-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-raster",
+      "pic-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-raster",
+      "2ndpic-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-raster",
+      "serialize-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-raster",
+      "sp-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-ctable",
+      "pic-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-ctable",
+      "2ndpic-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-ctable",
+      "serialize-8888",
+      "gm",
+      "_",
+      "image-cacherator-from-ctable",
+      "sp-8888",
+      "gm",
+      "_",
+      "gamut",
+      "pic-8888",
+      "gm",
+      "_",
+      "gamut",
+      "lite-8888",
+      "gm",
+      "_",
+      "gamut",
+      "2ndpic-8888",
+      "gm",
+      "_",
+      "gamut",
+      "serialize-8888",
+      "gm",
+      "_",
+      "gamut",
+      "sp-8888",
+      "gm",
+      "_",
+      "complexclip4_bw",
+      "pic-8888",
+      "gm",
+      "_",
+      "complexclip4_bw",
+      "lite-8888",
+      "gm",
+      "_",
+      "complexclip4_bw",
+      "2ndpic-8888",
+      "gm",
+      "_",
+      "complexclip4_bw",
+      "serialize-8888",
+      "gm",
+      "_",
+      "complexclip4_bw",
+      "sp-8888",
+      "gm",
+      "_",
+      "complexclip4_aa",
+      "pic-8888",
+      "gm",
+      "_",
+      "complexclip4_aa",
+      "lite-8888",
+      "gm",
+      "_",
+      "complexclip4_aa",
+      "2ndpic-8888",
+      "gm",
+      "_",
+      "complexclip4_aa",
+      "serialize-8888",
+      "gm",
+      "_",
+      "complexclip4_aa",
+      "tiles_rt-8888",
+      "gm",
+      "_",
+      "complexclip4_bw",
+      "tiles_rt-8888",
+      "gm",
+      "_",
+      "complexclip4_aa",
+      "565",
+      "gm",
+      "_",
+      "bigrect",
+      "565",
+      "gm",
+      "_",
+      "clippedcubic2",
+      "565",
+      "gm",
+      "_",
+      "conicpaths",
+      "8888",
+      "gm",
+      "_",
+      "bigrect",
+      "8888",
+      "gm",
+      "_",
+      "clippedcubic2",
+      "8888",
+      "gm",
+      "_",
+      "conicpaths",
+      "f16",
+      "gm",
+      "_",
+      "bigrect",
+      "f16",
+      "gm",
+      "_",
+      "clippedcubic2",
+      "f16",
+      "gm",
+      "_",
+      "conicpaths",
+      "srgb",
+      "gm",
+      "_",
+      "bigrect",
+      "srgb",
+      "gm",
+      "_",
+      "clippedcubic2",
+      "srgb",
+      "gm",
+      "_",
+      "conicpaths",
+      "pdf",
+      "gm",
+      "_",
+      "fontmgr_iterDebian9",
+      "pdf",
+      "gm",
+      "_",
+      "fontmgr_matchDebian9",
+      "pdf",
+      "gm",
+      "_",
+      "typefacestylesDebian",
+      "pdf",
+      "gm",
+      "_",
+      "typefacestyles_kerningDebian",
+      "--match",
+      "~^DashPathEffectTest_asPoints_limit$",
+      "~^Matrix$",
+      "~^Matrix44$",
+      "~^PathBigCubic$",
+      "~^PathOpsCubicIntersection$",
+      "~^PathOpsCubicLineIntersection$",
+      "~^PathOpsFailOp$",
+      "~^PathOpsOpCubicsThreaded$",
+      "~^PathOpsOpLoopsThreaded$",
+      "~^Point$",
+      "--verbose"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "ASAN_OPTIONS": "symbolize=1 detect_leaks=1",
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "LSAN_OPTIONS": "symbolize=1 print_suppressions=1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]:[START_DIR]/clang_linux/bin",
+      "SKIA_OUT": "[START_DIR]/out",
+      "UBSAN_OPTIONS": "symbolize=1 print_stacktrace=1"
+    },
+    "name": "symbolized dm"
+  },
+  {
+    "name": "$result",
+    "recipe_result": null,
+    "status_code": 0
+  }
+]
\ No newline at end of file
diff --git a/infra/bots/recipes/test.expected/Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow.json b/infra/bots/recipes/test.expected/Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow.json
new file mode 100644
index 0000000..3152946
--- /dev/null
+++ b/infra/bots/recipes/test.expected/Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow.json
@@ -0,0 +1,298 @@
+[
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skp/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SKP VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SKP_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SKP_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skimage/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded skimage VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SK_IMAGE_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SK_IMAGE_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/svg/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SVG VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SVG_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SVG_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "import os\nprint os.environ.get('SWARMING_BOT_ID', '')\n"
+    ],
+    "name": "get swarming bot id",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@print os.environ.get('SWARMING_BOT_ID', '')@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "import os\nprint os.environ.get('SWARMING_TASK_ID', '')\n"
+    ],
+    "name": "get swarming task id",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@print os.environ.get('SWARMING_TASK_ID', '')@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[skia::flavor]/resources/symbolize_stack_trace.py",
+      "[START_DIR]",
+      "[START_DIR]/out/Release/dm",
+      "--resourcePath",
+      "[START_DIR]/skia/resources",
+      "--skps",
+      "[START_DIR]/skp",
+      "--images",
+      "[START_DIR]/skimage/dm",
+      "--colorImages",
+      "[START_DIR]/skimage/colorspace",
+      "--nameByHash",
+      "--properties",
+      "gitHash",
+      "abc123",
+      "builder",
+      "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow",
+      "swarming_bot_id",
+      "skia-bot-123",
+      "swarming_task_id",
+      "123456",
+      "--svgs",
+      "[START_DIR]/svg",
+      "--key",
+      "arch",
+      "x86_64",
+      "compiler",
+      "Clang",
+      "configuration",
+      "Release",
+      "cpu_or_gpu",
+      "GPU",
+      "cpu_or_gpu_value",
+      "QuadroP400",
+      "extra_config",
+      "UBSAN_float_cast_overflow",
+      "model",
+      "Golo",
+      "os",
+      "Ubuntu17",
+      "--dont_write",
+      "pdf",
+      "--randomProcessorTest",
+      "--nocpu",
+      "--config",
+      "gl",
+      "gldft",
+      "glsrgb",
+      "glmsaa8",
+      "glnvprdit8",
+      "--src",
+      "tests",
+      "gm",
+      "image",
+      "colorImage",
+      "svg",
+      "--blacklist",
+      "_",
+      "svg",
+      "_",
+      "svgparse_",
+      "glsrgb",
+      "image",
+      "_",
+      "_",
+      "_",
+      "image",
+      "_",
+      "interlaced1.png",
+      "_",
+      "image",
+      "_",
+      "interlaced2.png",
+      "_",
+      "image",
+      "_",
+      "interlaced3.png",
+      "_",
+      "image",
+      "_",
+      ".arw",
+      "_",
+      "image",
+      "_",
+      ".cr2",
+      "_",
+      "image",
+      "_",
+      ".dng",
+      "_",
+      "image",
+      "_",
+      ".nef",
+      "_",
+      "image",
+      "_",
+      ".nrw",
+      "_",
+      "image",
+      "_",
+      ".orf",
+      "_",
+      "image",
+      "_",
+      ".raf",
+      "_",
+      "image",
+      "_",
+      ".rw2",
+      "_",
+      "image",
+      "_",
+      ".pef",
+      "_",
+      "image",
+      "_",
+      ".srw",
+      "_",
+      "image",
+      "_",
+      ".ARW",
+      "_",
+      "image",
+      "_",
+      ".CR2",
+      "_",
+      "image",
+      "_",
+      ".DNG",
+      "_",
+      "image",
+      "_",
+      ".NEF",
+      "_",
+      "image",
+      "_",
+      ".NRW",
+      "_",
+      "image",
+      "_",
+      ".ORF",
+      "_",
+      "image",
+      "_",
+      ".RAF",
+      "_",
+      "image",
+      "_",
+      ".RW2",
+      "_",
+      "image",
+      "_",
+      ".PEF",
+      "_",
+      "image",
+      "_",
+      ".SRW",
+      "--match",
+      "~^GLPrograms$",
+      "~^ProcessorCloneTest$",
+      "~^ProcessorOptimizationValidationTest$",
+      "--verbose"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "ASAN_OPTIONS": "symbolize=1 detect_leaks=1",
+      "BUILDTYPE": "Release",
+      "CHROME_HEADLESS": "1",
+      "LSAN_OPTIONS": "symbolize=1 print_suppressions=1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]:[START_DIR]/clang_linux/bin",
+      "SKIA_OUT": "[START_DIR]/out",
+      "UBSAN_OPTIONS": "symbolize=1 print_stacktrace=1"
+    },
+    "name": "symbolized dm"
+  },
+  {
+    "name": "$result",
+    "recipe_result": null,
+    "status_code": 0
+  }
+]
\ No newline at end of file
diff --git a/infra/bots/recipes/test.py b/infra/bots/recipes/test.py
index 494296b..d58bb03 100644
--- a/infra/bots/recipes/test.py
+++ b/infra/bots/recipes/test.py
@@ -520,6 +520,32 @@
     match.extend(['~RGBA4444TextureTest',  # Flakier than they are important.
                   '~RGB565TextureTest'])
 
+  if 'float_cast_overflow' in bot and 'CPU' in bot:
+    # skia:4632
+    for config in ['565', '8888', 'f16', 'srgb']:
+      blacklist([config, 'gm', '_', 'bigrect'])
+      blacklist([config, 'gm', '_', 'clippedcubic2'])
+      blacklist([config, 'gm', '_', 'conicpaths'])
+    blacklist(['pdf', 'gm', '_', 'fontmgr_iterDebian9'])
+    blacklist(['pdf', 'gm', '_', 'fontmgr_matchDebian9'])
+    blacklist(['pdf', 'gm', '_', 'typefacestylesDebian'])
+    blacklist(['pdf', 'gm', '_', 'typefacestyles_kerningDebian'])
+    match.append('~^DashPathEffectTest_asPoints_limit$')
+    match.append('~^Matrix$')
+    match.append('~^Matrix44$')
+    match.append('~^PathBigCubic$')
+    match.append('~^PathOpsCubicIntersection$')
+    match.append('~^PathOpsCubicLineIntersection$')
+    match.append('~^PathOpsFailOp$')
+    match.append('~^PathOpsOpCubicsThreaded$')
+    match.append('~^PathOpsOpLoopsThreaded$')
+    match.append('~^Point$')
+  if 'float_cast_overflow' in bot and 'GPU' in bot:
+    # skia:4632
+    match.append('~^GLPrograms$')
+    match.append('~^ProcessorCloneTest$')
+    match.append('~^ProcessorOptimizationValidationTest$')
+
   if 'Vulkan' in bot and 'Adreno530' in bot:
       # skia:5777
       match.extend(['~CopySurface'])
@@ -882,6 +908,7 @@
   'Test-Ubuntu-GCC-GCE-CPU-AVX2-x86-Debug',
   'Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug',
   'Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-ASAN',
+  'Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow',
   'Test-Ubuntu-GCC-ShuttleA-GPU-GTX550Ti-x86_64-Release-Valgrind',
   ('Test-Ubuntu-GCC-ShuttleA-GPU-GTX550Ti-x86_64-Release-Valgrind' +
    '_AbandonGpuContext'),
@@ -893,6 +920,8 @@
   'Test-Ubuntu16-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-Vulkan',
   'Test-Ubuntu16-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Release',
   'Test-Ubuntu16-Clang-NUCDE3815TYKHE-GPU-IntelBayTrail-x86_64-Debug',
+  ('Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN' +
+   '_float_cast_overflow'),
   ('Test-Ubuntu17-GCC-Golo-GPU-QuadroP400-x86_64-Release-Valgrind' +
    '_PreAbandonGpuContext_SK_CPU_LIMIT_SSE41'),
   'Test-Win8-MSVC-Golo-CPU-AVX-x86-Debug',
diff --git a/infra/bots/tasks.json b/infra/bots/tasks.json
index c4d28da..bc0726b 100644
--- a/infra/bots/tasks.json
+++ b/infra/bots/tasks.json
@@ -132,6 +132,12 @@
         "Build-Debian9-Clang-x86_64-Debug-MSAN"
       ]
     },
+    "Build-Debian9-Clang-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Build-Debian9-Clang-x86_64-Debug-UBSAN_float_cast_overflow"
+      ]
+    },
     "Build-Debian9-Clang-x86_64-Debug-Vulkan": {
       "priority": 0.8,
       "tasks": [
@@ -186,6 +192,12 @@
         "Build-Debian9-Clang-x86_64-Release-TSAN"
       ]
     },
+    "Build-Debian9-Clang-x86_64-Release-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Build-Debian9-Clang-x86_64-Release-UBSAN_float_cast_overflow"
+      ]
+    },
     "Build-Debian9-Clang-x86_64-Release-Vulkan": {
       "priority": 0.8,
       "tasks": [
@@ -872,6 +884,12 @@
         "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-MSAN"
       ]
     },
+    "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow"
+      ]
+    },
     "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release": {
       "priority": 0.8,
       "tasks": [
@@ -896,6 +914,12 @@
         "Upload-Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-SK_FORCE_RASTER_PIPELINE_BLITTER"
       ]
     },
+    "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow"
+      ]
+    },
     "Perf-Debian9-GCC-GCE-CPU-AVX2-x86-Debug": {
       "priority": 0.8,
       "tasks": [
@@ -1107,6 +1131,12 @@
         "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-ASAN"
       ]
     },
+    "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow"
+      ]
+    },
     "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release": {
       "priority": 0.8,
       "tasks": [
@@ -1119,6 +1149,12 @@
         "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-ASAN"
       ]
     },
+    "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow"
+      ]
+    },
     "Perf-Ubuntu17-GCC-Golo-GPU-QuadroP400-x86_64-Release-Valgrind_AbandonGpuContext_SK_CPU_LIMIT_SSE41": {
       "priority": 0.8,
       "tasks": [
@@ -1899,6 +1935,12 @@
         "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-MSAN"
       ]
     },
+    "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow"
+      ]
+    },
     "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release": {
       "priority": 0.8,
       "tasks": [
@@ -1941,6 +1983,12 @@
         "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-TSAN"
       ]
     },
+    "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow"
+      ]
+    },
     "Test-Debian9-GCC-GCE-CPU-AVX2-x86-Debug": {
       "priority": 0.8,
       "tasks": [
@@ -2177,6 +2225,12 @@
         "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-ASAN"
       ]
     },
+    "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow"
+      ]
+    },
     "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release": {
       "priority": 0.8,
       "tasks": [
@@ -2195,6 +2249,12 @@
         "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-TSAN"
       ]
     },
+    "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow": {
+      "priority": 0.8,
+      "tasks": [
+        "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow"
+      ]
+    },
     "Test-Ubuntu17-GCC-Golo-GPU-GT610-x86_64-Release-PreAbandonGpuContext": {
       "priority": 0.8,
       "tasks": [
@@ -3339,6 +3399,36 @@
       "isolate": "compile_skia.isolate",
       "priority": 0.8
     },
+    "Build-Debian9-Clang-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dimensions": [
+        "cpu:x86-64-avx2",
+        "gpu:none",
+        "os:Debian-9.1",
+        "pool:Skia"
+      ],
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "compile",
+        "repository=<(REPO)",
+        "buildername=Build-Debian9-Clang-x86_64-Debug-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "isolate": "compile_skia.isolate",
+      "priority": 0.8
+    },
     "Build-Debian9-Clang-x86_64-Debug-Vulkan": {
       "cipd_packages": [
         {
@@ -3614,6 +3704,36 @@
       "isolate": "compile_skia.isolate",
       "priority": 0.8
     },
+    "Build-Debian9-Clang-x86_64-Release-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dimensions": [
+        "cpu:x86-64-avx2",
+        "gpu:none",
+        "os:Debian-9.1",
+        "pool:Skia"
+      ],
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "compile",
+        "repository=<(REPO)",
+        "buildername=Build-Debian9-Clang-x86_64-Release-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "isolate": "compile_skia.isolate",
+      "priority": 0.8
+    },
     "Build-Debian9-Clang-x86_64-Release-Vulkan": {
       "cipd_packages": [
         {
@@ -7049,6 +7169,59 @@
       "max_attempts": 1,
       "priority": 0.8
     },
+    "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/skimage",
+          "path": "skimage",
+          "version": "version:29"
+        },
+        {
+          "name": "skia/bots/skp",
+          "path": "skp",
+          "version": "version:84"
+        },
+        {
+          "name": "skia/bots/svg",
+          "path": "svg",
+          "version": "version:9"
+        },
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dependencies": [
+        "Build-Debian9-Clang-x86_64-Debug-UBSAN_float_cast_overflow",
+        "Housekeeper-PerCommit-BundleRecipes"
+      ],
+      "dimensions": [
+        "cpu:x86-64-avx2",
+        "gpu:none",
+        "os:Debian-9.1",
+        "pool:Skia"
+      ],
+      "execution_timeout_ns": 14400000000000,
+      "expiration_ns": 72000000000000,
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "perf",
+        "repository=<(REPO)",
+        "buildername=Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "io_timeout_ns": 2400000000000,
+      "isolate": "perf_skia_bundled_unix.isolate",
+      "max_attempts": 1,
+      "priority": 0.8
+    },
     "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release": {
       "cipd_packages": [
         {
@@ -7246,6 +7419,59 @@
       "max_attempts": 1,
       "priority": 0.8
     },
+    "Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/skimage",
+          "path": "skimage",
+          "version": "version:29"
+        },
+        {
+          "name": "skia/bots/skp",
+          "path": "skp",
+          "version": "version:84"
+        },
+        {
+          "name": "skia/bots/svg",
+          "path": "svg",
+          "version": "version:9"
+        },
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dependencies": [
+        "Build-Debian9-Clang-x86_64-Release-UBSAN_float_cast_overflow",
+        "Housekeeper-PerCommit-BundleRecipes"
+      ],
+      "dimensions": [
+        "cpu:x86-64-avx2",
+        "gpu:none",
+        "os:Debian-9.1",
+        "pool:Skia"
+      ],
+      "execution_timeout_ns": 14400000000000,
+      "expiration_ns": 72000000000000,
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "perf",
+        "repository=<(REPO)",
+        "buildername=Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "io_timeout_ns": 2400000000000,
+      "isolate": "perf_skia_bundled_unix.isolate",
+      "max_attempts": 1,
+      "priority": 0.8
+    },
     "Perf-Debian9-GCC-GCE-CPU-AVX2-x86-Debug": {
       "cipd_packages": [
         {
@@ -8964,6 +9190,58 @@
       "max_attempts": 1,
       "priority": 0.8
     },
+    "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/skimage",
+          "path": "skimage",
+          "version": "version:29"
+        },
+        {
+          "name": "skia/bots/skp",
+          "path": "skp",
+          "version": "version:84"
+        },
+        {
+          "name": "skia/bots/svg",
+          "path": "svg",
+          "version": "version:9"
+        },
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dependencies": [
+        "Build-Debian9-Clang-x86_64-Debug-UBSAN_float_cast_overflow",
+        "Housekeeper-PerCommit-BundleRecipes"
+      ],
+      "dimensions": [
+        "gpu:10de:1cb3-384.59",
+        "os:Ubuntu-17.04",
+        "pool:Skia"
+      ],
+      "execution_timeout_ns": 14400000000000,
+      "expiration_ns": 72000000000000,
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "perf",
+        "repository=<(REPO)",
+        "buildername=Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "io_timeout_ns": 2400000000000,
+      "isolate": "perf_skia_bundled_unix.isolate",
+      "max_attempts": 1,
+      "priority": 0.8
+    },
     "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release": {
       "cipd_packages": [
         {
@@ -9063,6 +9341,58 @@
       "max_attempts": 1,
       "priority": 0.8
     },
+    "Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/skimage",
+          "path": "skimage",
+          "version": "version:29"
+        },
+        {
+          "name": "skia/bots/skp",
+          "path": "skp",
+          "version": "version:84"
+        },
+        {
+          "name": "skia/bots/svg",
+          "path": "svg",
+          "version": "version:9"
+        },
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dependencies": [
+        "Build-Debian9-Clang-x86_64-Release-UBSAN_float_cast_overflow",
+        "Housekeeper-PerCommit-BundleRecipes"
+      ],
+      "dimensions": [
+        "gpu:10de:1cb3-384.59",
+        "os:Ubuntu-17.04",
+        "pool:Skia"
+      ],
+      "execution_timeout_ns": 14400000000000,
+      "expiration_ns": 72000000000000,
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "perf",
+        "repository=<(REPO)",
+        "buildername=Perf-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "io_timeout_ns": 2400000000000,
+      "isolate": "perf_skia_bundled_unix.isolate",
+      "max_attempts": 1,
+      "priority": 0.8
+    },
     "Perf-Ubuntu17-GCC-Golo-GPU-QuadroP400-x86_64-Release-Valgrind_AbandonGpuContext_SK_CPU_LIMIT_SSE41": {
       "cipd_packages": [
         {
@@ -14412,6 +14742,59 @@
       "max_attempts": 1,
       "priority": 0.8
     },
+    "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/skimage",
+          "path": "skimage",
+          "version": "version:29"
+        },
+        {
+          "name": "skia/bots/skp",
+          "path": "skp",
+          "version": "version:84"
+        },
+        {
+          "name": "skia/bots/svg",
+          "path": "svg",
+          "version": "version:9"
+        },
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dependencies": [
+        "Build-Debian9-Clang-x86_64-Debug-UBSAN_float_cast_overflow",
+        "Housekeeper-PerCommit-BundleRecipes"
+      ],
+      "dimensions": [
+        "cpu:x86-64-avx2",
+        "gpu:none",
+        "os:Debian-9.1",
+        "pool:Skia"
+      ],
+      "execution_timeout_ns": 14400000000000,
+      "expiration_ns": 72000000000000,
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "test",
+        "repository=<(REPO)",
+        "buildername=Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "io_timeout_ns": 2400000000000,
+      "isolate": "test_skia_bundled_unix.isolate",
+      "max_attempts": 1,
+      "priority": 0.8
+    },
     "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release": {
       "cipd_packages": [
         {
@@ -14758,6 +15141,59 @@
       "max_attempts": 1,
       "priority": 0.8
     },
+    "Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/skimage",
+          "path": "skimage",
+          "version": "version:29"
+        },
+        {
+          "name": "skia/bots/skp",
+          "path": "skp",
+          "version": "version:84"
+        },
+        {
+          "name": "skia/bots/svg",
+          "path": "svg",
+          "version": "version:9"
+        },
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dependencies": [
+        "Build-Debian9-Clang-x86_64-Release-UBSAN_float_cast_overflow",
+        "Housekeeper-PerCommit-BundleRecipes"
+      ],
+      "dimensions": [
+        "cpu:x86-64-avx2",
+        "gpu:none",
+        "os:Debian-9.1",
+        "pool:Skia"
+      ],
+      "execution_timeout_ns": 14400000000000,
+      "expiration_ns": 72000000000000,
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "test",
+        "repository=<(REPO)",
+        "buildername=Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "io_timeout_ns": 2400000000000,
+      "isolate": "test_skia_bundled_unix.isolate",
+      "max_attempts": 1,
+      "priority": 0.8
+    },
     "Test-Debian9-GCC-GCE-CPU-AVX2-x86-Debug": {
       "cipd_packages": [
         {
@@ -16651,6 +17087,58 @@
       "max_attempts": 1,
       "priority": 0.8
     },
+    "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/skimage",
+          "path": "skimage",
+          "version": "version:29"
+        },
+        {
+          "name": "skia/bots/skp",
+          "path": "skp",
+          "version": "version:84"
+        },
+        {
+          "name": "skia/bots/svg",
+          "path": "svg",
+          "version": "version:9"
+        },
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dependencies": [
+        "Build-Debian9-Clang-x86_64-Debug-UBSAN_float_cast_overflow",
+        "Housekeeper-PerCommit-BundleRecipes"
+      ],
+      "dimensions": [
+        "gpu:10de:1cb3-384.59",
+        "os:Ubuntu-17.04",
+        "pool:Skia"
+      ],
+      "execution_timeout_ns": 14400000000000,
+      "expiration_ns": 72000000000000,
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "test",
+        "repository=<(REPO)",
+        "buildername=Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Debug-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "io_timeout_ns": 2400000000000,
+      "isolate": "test_skia_bundled_unix.isolate",
+      "max_attempts": 1,
+      "priority": 0.8
+    },
     "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release": {
       "cipd_packages": [
         {
@@ -16802,6 +17290,58 @@
       "max_attempts": 1,
       "priority": 0.8
     },
+    "Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/skimage",
+          "path": "skimage",
+          "version": "version:29"
+        },
+        {
+          "name": "skia/bots/skp",
+          "path": "skp",
+          "version": "version:84"
+        },
+        {
+          "name": "skia/bots/svg",
+          "path": "svg",
+          "version": "version:9"
+        },
+        {
+          "name": "skia/bots/clang_linux",
+          "path": "clang_linux",
+          "version": "version:9"
+        }
+      ],
+      "dependencies": [
+        "Build-Debian9-Clang-x86_64-Release-UBSAN_float_cast_overflow",
+        "Housekeeper-PerCommit-BundleRecipes"
+      ],
+      "dimensions": [
+        "gpu:10de:1cb3-384.59",
+        "os:Ubuntu-17.04",
+        "pool:Skia"
+      ],
+      "execution_timeout_ns": 14400000000000,
+      "expiration_ns": 72000000000000,
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "test",
+        "repository=<(REPO)",
+        "buildername=Test-Ubuntu17-Clang-Golo-GPU-QuadroP400-x86_64-Release-UBSAN_float_cast_overflow",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "io_timeout_ns": 2400000000000,
+      "isolate": "test_skia_bundled_unix.isolate",
+      "max_attempts": 1,
+      "priority": 0.8
+    },
     "Test-Ubuntu17-GCC-Golo-GPU-GT610-x86_64-Release-PreAbandonGpuContext": {
       "cipd_packages": [
         {