AddressSanitizer: heap-buffer-overflow on address

[nickbit]

Hello Yannick,

After running my app through the AddressSanitizer I got a heap buffer overflow error. The lines causing that are in - (void)setProgressTintColor:(UIColor *)progressTintColor:

const CGFloat *c    = CGColorGetComponents(progressTintColor.CGColor);
UIColor *leftColor  = [UIColor colorWithRed:(c[0] / 2.0f) green:(c[1] / 2.0f) blue:(c[2] / 2.0f) alpha:(c[3])];

CGColorGetComponents is not guaranteed to return 4 components in all cases. In my case it returned 2 (color was white). To fix that, please replace the lines above with the following:

CGFloat red, green, blue, alpha;
[progressTintColor getRed:&red green:&green blue:&blue alpha:&alpha];
UIColor *leftColor  = [UIColor colorWithRed:(red / 2.0f) green:(green / 2.0f) blue:(blue / 2.0f) alpha:(alpha)];

[yannickl]

Thank you for the report! I'm going to fix that. 👍