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arm: avoid overflow in RGBA palette offset #899

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arm: avoid overflow in RGBA palette offset #899

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2 changes: 1 addition & 1 deletion arm/arm_init.c
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Original file line number Diff line number Diff line change
Expand Up @@ -145,7 +145,7 @@ png_target_do_expand_palette_neon(png_struct *png_ptr, png_row_info *row_info,
* way despite the fact that the comments in the neon palette code
* obfuscate what is happening.
*/
png_byte *dp = row + (4/*RGBA*/*row_width - 1);
png_byte *dp = row + (4/*RGBA*/ * (size_t)row_width - 1);

/* Cosmin Truta: "Sometimes row_info->bit_depth has been changed to 8.
* In these cases, the palette hasn't been riffled."
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