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Guard against out of bounds pixel set #96

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Merged
merged 1 commit into from
Feb 18, 2025
Merged

Guard against out of bounds pixel set #96

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5 changes: 4 additions & 1 deletion adafruit_imageload/png.py
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Original file line number Diff line number Diff line change
Expand Up @@ -113,7 +113,10 @@ def load( # noqa: PLR0912, PLR0915, Too many branches, Too many statements
for x in range(0, width, pixels_per_byte):
byte = data_bytes[src_b]
for pixel in range(pixels_per_byte):
bmp[x + pixel, y] = (byte >> ((pixels_per_byte - pixel - 1) * depth)) & pixmask
if x + pixel < width:
bmp[x + pixel, y] = (
byte >> ((pixels_per_byte - pixel - 1) * depth)
) & pixmask
src_b += 1
src += scanline + 1
src_b = src
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