I have found very serious bug in Linux file permissions. I have RedHat
6.2 with all patches applyed.

If you have one directory fo example  /xxx/yyy and the owner of xxx is
root but for yyy is user foo and if root create file in directory
/xxx/yyy/some.file with permissions

-rw-r--r--    root    root    some.file

it is logical user foo to not be able to delete file some.file and he
actually can not delete file, BUT if foo is owner to both /xxx and
/xxx/yyy directory and if root create file /xxx/yyy/some.file with the
permissions showed above the user foo is able to delete file without any
problems the message is:

[foo@host]$rm /xxx/yyy/some.file
rm: remove write-protected file `some.file'?
and when I say yes the file is deleted.

I think that this is very serious bug because local permissions MUST be
with higher priority

By