rm(1) bug, possibly serious

[Patrick M. Hausen]

Hello!

On Tue, Sep 25, 2007 at 11:54:14PM +0200, Oliver Brandmueller wrote:

> In sh:
> 
> $ which rm
> /bin/rm
> $ cd /tmp
> $ mkdir -p foo/bar
> $ cd foo/bar
> $ rm -rf ../
> rm: ../: Invalid argument

$ pwd
/tmp
$ ktrace -i /bin/sh
$ which rm
/bin/rm
$ mkdir -p foo/bar
$ cd foo/bar
$ rm -rf ../
rm: ../: Invalid argument
$ rm -rf ../
$ ktrace -C

 ...
 35356 rm       NAMI  "../"
 35356 rm       RET   rmdir -1 errno 22 Invalid argument
 ...
 35488 rm       NAMI  "../"
 35488 rm       RET   lstat -1 errno 2 No such file or directory
 ...

HTH,
Patrick
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