Hi...
[root@jaspion tmp]# su jorge [jorge@jaspion tmp]$ ./prog bash: ./prog: Permission Deny [jorge@jaspion tmp]$ ls -la prog -rwxr--r-- 1 root root 6648 2007-07-21 11:21 prog [jorge@jaspion tmp]$ /lib/ld-linux.so.2 ./prog huhu! o/ [jorge@jaspion tmp]$ it's bug? or the "ld-linux" read the elf and execute? so, dynamic linker/loader?
That's correct behaviour. AFAIK, ld-linux.so could sometimes works as loader (as we all know), but it can be invoked as executable. In the latter case, you provide an ELF executable and it will run it. Summary: to make a binary un-executable for certain uid, you can't just do it by taking off its executable permission bits, but also takes the same bits from ld-linux.so. regards, Mulyadi -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
