Dangerous edge case for non-null-terminated string #1168
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strncpy() does not place a null terminator when the max characters is reached of '9' in this case. So, any buttons with 9 or more in the source will wind up with a potentially non-null-terminated _label.
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Thanks for reporting this. It is also worth reporting this on the Adafruit_GFX library as that is the source of that code segment. I will update TFTeSPI. |
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Great. I did do a PR for this on Adafruit-GFX also on your suggestion. |
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strncpy() does not place a null terminator when the max characters is reached of '9' in this case. So, any buttons with 9 or more in the source will wind up with a potentially non-null-terminated _label.