Yegappan Lakshmanan wrote:

> Running the message_test executable with address sanitizer
> enabled and the following test code in message_test.c:
> 
>     trunc_string((char_u *)"a text that fits", buf, 34, 40);
> 
> produces a buffer overflow in utf_head_off():
> 
> AddressSanitizer: global-buffer-overflow mbyte.c:3740 in utf_head_off

I ran the test with valgrind but it did not report a problem.
Do you have more information/

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