kern/155321: imgact_shell integer underflow when argv[0] is longer than interp + path

[Devon H. O'Dell]

Yeah, this has been a bug for quite some time.

--dho

2011/3/6 Oliver Pinter <oliver.pntr at gmail.com>:
> under 7.4 exist too this problem
>
> XXX at XXX test> gcc execve.c
> XXX at XXX test> cp /bin/ls .
> XXX at XXX test> ./a.out ls /tmp/test/ls
> a.out           execve.c        ls              shellscript
> XXX at XXX test> ./a.out shellscript asdf
> shellscript
> XXX at XXX test> ./a.out shellscript /tmp/test/
> a.out*       execve.c     ls*          shellscript*
> XXX at XXX test> ./a.out shellscript /tmp/test/ls
> shellscript
> XXX at XXX test> ./a.out shellscript /tmp/test/shellscript
> shellscript
> XXX at XXX test> ./a.out shellscript /bin/echo-shellscript
> shellscript
> XXX at XXX test> ./a.out shellscript /bin/echo-shellscript1
> execve: Argument list too long
> XXX at XXX test> uname -a
> FreeBSD XXX 7.4-STABLE FreeBSD 7.4-STABLE #71 r219301+472ccf9: Sun Mar
>  6 19:16:46 CET 2011     XXX at XXX:/usr/obj/usr/src/sys/stable  amd64
>
>
> On 3/6/11, Devon H. O'Dell <devon.odell at gmail.com> wrote:
>> Actually, kib@ points out that this isn't quite correct; the correct
>> fix should indeed be a 1-liner, attached.
>>
>> --dho
>>
>