Sandino Flores Moreno:
And the directory
/data/EVM_filesystems/common/masters/CSSD_Linux_12.3RC1.master/target and
the other branch directory have the same permissions/gid/uid
Are you sure?
If it is true, it must be aufs bug.
Please show me your branches by,,,
$ ls -ld branch1 branch2 ...
What is this warning due to?
Is it a signal of something bad?
(from the aufs manual)
--
.B warn_perm nowarn_perm
Enables or disables the warning about uid/gid/permission at adding a
branch. The default is warn_perm (cf. DIAGNOSTICS).
:::
.SH DIAGNOSTICS
When you add an branch to your union, aufs may warn you about the
privilege or security of the branch, which is the permission bits,
owner and group of the top directory of the branch.
If your upper writable branch has a world writable top directory,
a malicious user can create any files on the writable branch directly,
like copyup and modify manually. I am afraid it can be a security
issue.
--
By the way, this is not the first time people asked me about this
warning. Is it so strange? Is the description in the manual too poor? Or
people doesn't read the manual, then where and how should I describe?
Junjiro Okajima
-
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