Dear Paul and Thorsten, I am not a Debian, but a Gentoo, user, but also found the same bug on chktex-1.6.4. I have already filed a bug report in the gentoo tracker, as well as the savannah project page:
https://bugs.gentoo.org/show_bug.cgi?id=383403 https://savannah.nongnu.org/bugs/?34322 I am copying here what I already reported there, but I thought you might be interested to know the reason behing the bug. The problem comes from line 221 of file FindErrs.c in the chktex-1.6.4 sources, where the following call is performed: strcpy(OrigDest, OrigDest + 1); According to the man page of strcpy(3), the src and dst strings should not overlap, so the results are undefined. In my case, when I upgraded glibc to version 2.12.2, the bug actually occurred. To fix the bug, I have replaced the call for an alternative: ShiftLeftOne(OrigDest); defined as static void ShiftLeftOne(char *Buf) { char *P; for (P = Buf + 1; *P; ++P) *(P - 1) = *P; *(P - 1) = '\0'; } I already submitted a patch file to both bug reports, so let's hope the bug is fixed soon. Cheers, Edgar
