IMPORTANT DEBUGGING NOTE: batches of tests are run inside their
own process. For debugging a test inside a debugger, use the
--gtest_filter=<your_test_name> flag along with
--single-process-tests.
Using sharding settings from environment. This is shard 0/1
Using 1 parallel jobs.
Note: Google Test filter = GradientCacheCollisionTest.FloatStorageManagerNumStopsDesync
[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
[----------] 1 test from GradientCacheCollisionTest
[ RUN      ] GradientCacheCollisionTest.FloatStorageManagerNumStopsDesync

=== FloatStorageManager uniqueID-collision desync ===
  gradient_a: ptr=0x7128873e7cc0 uniqueID=1 numStops=9  -> {dstData=0x7118873e8b00, bufferOffset=0} (allocated 45 floats)
  gradient_b: ptr=0x7128873ffb40 uniqueID=1 numStops=10000  -> {dstData=(nil), bufferOffset=0} (allocated 0 floats: CACHE HIT ON COLLISION)
  finalize() will bind an SSBO of 90 floats (360 bytes)
  $colorize_grad_buf for gradient_b reads up to index 49996
  => GPU storage-buffer OOB READ of 49910 floats (199640 bytes) past the binding
  On macOS (Graphite/Dawn-Metal default, disable_robustness toggle set in dawn_context_provider.cc), the emitted MSL indexes a raw `device float*` with no bounds check; leaked bytes are rendered as RGBA and readable via getImageData().
=====================================================

../../skia/ext/gradient_cache_collision_unittest.cc:169: Failure
Expected: (off_b + 5 * kLargeStops) <= (ssbo_floats), actual: 50000 vs 90
VULNERABILITY CONFIRMED: gradient_b's uniforms encode {bufferOffset=0, numStops=10000} => shader reads indices [0, 49999] from a 90-float SSBO. FloatStorageManager::allocateGradientData() returned a cached offset for a colliding uniqueID without cross-checking numStops.
Stack trace:
#0 0x653c4c15571d (/chromium/chromium/src/out/asan/skia_unittests+0x191f71c)

[  FAILED  ] GradientCacheCollisionTest.FloatStorageManagerNumStopsDesync (40 ms)
[----------] 1 test from GradientCacheCollisionTest (48 ms total)

[----------] Global test environment tear-down
[==========] 1 test from 1 test suite ran. (48 ms total)
[  PASSED  ] 0 tests.
[  FAILED  ] 1 test, listed below:
[  FAILED  ] GradientCacheCollisionTest.FloatStorageManagerNumStopsDesync

 1 FAILED TEST
[1/1] GradientCacheCollisionTest.FloatStorageManagerNumStopsDesync (40 ms)
1 test failed:
    GradientCacheCollisionTest.FloatStorageManagerNumStopsDesync (../../skia/ext/gradient_cache_collision_unittest.cc:61)
Tests took 0 seconds.