)]}'
{
  "commit": "839d18189fe31cf4c9416d1a745ef06bd2257982",
  "tree": "afcc71a7e014c9329fb3d225560f945309799e7f",
  "parents": [
    "ef4ca3bd91eb9e88e1af3b9a931f06fcd4468fe3"
  ],
  "author": {
    "name": "Tom Sepez",
    "email": "tsepez@chromium.org",
    "time": "Tue Oct 05 05:14:42 2021 +0000"
  },
  "committer": {
    "name": "Lei Zhang",
    "email": "thestig@chromium.org",
    "time": "Tue Oct 05 05:14:42 2021 +0000"
  },
  "message": "M95: Use more safe arithmetic in CFX_DIBBase\n\nMost of the calculations are \"safe\" because we know that the DIB\nhas validated sizes before allocating a buffer, and that calculations\nin terms of bytes won\u0027t overflow and will be within the buffer. But\ncalculations in terms of bits might create overflow in temporaries,\nso use safe arithmetic there instead.\n\nRe-arranging the order of operations thus converting to bytes first\nmight be one option, but we want to handle the 1 bpp case.\n\nTest would require large images that might not be possible on\nall platforms.\n\nBug: chromium:1253399\nChange-Id: I3c6c5b8b1f1bf3f429c7d377a8a84c5ab53cafd9\nReviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/85510\nReviewed-by: Lei Zhang \u003cthestig@chromium.org\u003e\nCommit-Queue: Tom Sepez \u003ctsepez@chromium.org\u003e\n(cherry picked from commit a8b293732a0160d1bc1d5b0ad5744922f0f820d5)\nReviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/85670\nReviewed-by: Daniel Hosseinian \u003cdhoss@chromium.org\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "fc686670c2fd94c5d6d56d27fe8987c31d040162",
      "old_mode": 33188,
      "old_path": "core/fxge/dib/cfx_bitmapcomposer.cpp",
      "new_id": "90a65f2ec6a755b234582dc841a99ada6f1281a2",
      "new_mode": 33188,
      "new_path": "core/fxge/dib/cfx_bitmapcomposer.cpp"
    },
    {
      "type": "modify",
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      "old_mode": 33188,
      "old_path": "core/fxge/dib/cfx_dibbase.cpp",
      "new_id": "6753b029df762adbbfdda43604238da4d212b6b2",
      "new_mode": 33188,
      "new_path": "core/fxge/dib/cfx_dibbase.cpp"
    },
    {
      "type": "modify",
      "old_id": "be641015ae5ded892dca5197e3e25cb2b5129642",
      "old_mode": 33188,
      "old_path": "core/fxge/dib/cfx_dibitmap.cpp",
      "new_id": "736ff8ab70b58e8132ef67e6e2a14a41a9b5f19e",
      "new_mode": 33188,
      "new_path": "core/fxge/dib/cfx_dibitmap.cpp"
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  ]
}