On Tue, 14 Jun 2022 at 15:21, Ondrej Mosnacek <omosnace@xxxxxxxxxx> wrote:
>
> On Tue, Jun 14, 2022 at 12:21 PM Christian Göttsche
> <cgzones@xxxxxxxxxxxxxx> wrote:
> >
> > filesystem/ext4/test .. 67/83 getfilecon(3) Failed: Permission denied
> > filesystem/ext4/test .. 71/83
> > filesystem/ext4/test .. 75/83 # Looks like you failed 1 test of 83.
> > filesystem/ext4/test .. Dubious, test returned 1 (wstat 256, 0x100)
> >
> > type=PROCTITLE msg=audit(02/05/22 11:47:03.170:7047) : proctitle=/root/workspace/selinux/selinux-testsuite/tests/filesystem/ext4/check_mount_context -r -m /root/workspace/selinux/selinux-testsu
> > type=PATH msg=audit(02/05/22 11:47:03.170:7047) : item=0 name=/root/workspace/selinux/selinux-testsuite/tests/filesystem/ext4/mntpoint/mp1 inode=390506 dev=fe:01 mode=dir,750 ouid=root ogid=root rdev=00:00 obj=unconfined_u:object_r:unlabeled_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
> > type=CWD msg=audit(02/05/22 11:47:03.170:7047) : cwd=/root/workspace/selinux/selinux-testsuite/tests
> > type=SYSCALL msg=audit(02/05/22 11:47:03.170:7047) : arch=x86_64 syscall=getxattr success=no exit=EACCES(Permission denied) a0=0x7ffcd27c5651 a1=0x7fec8529078d a2=0x645b39a13550 a3=0xff items=1 ppid=76535 pid=77228 auid=root uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=pts1 ses=1 comm=check_mount_con exe=/root/workspace/selinux/selinux-testsuite/tests/filesystem/check_mount_context subj=unconfined_u:unconfined_r:test_filesystem_context_t:s0-s0:c0.c1023 key=(null)
> > type=AVC msg=audit(02/05/22 11:47:03.170:7047) : avc: denied { getattr } for pid=77228 comm=check_mount_con name=mp1 dev="vda1" ino=390506 scontext=unconfined_u:unconfined_r:test_filesystem_context_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:unlabeled_t:s0 tclass=dir permissive=0
>
> Does this happen on Debian only? Do you know why it isn't/hasn't been
> happening on Fedora/RHEL?
In fefora-policy unlabeled_t is associated with the attribute
file_type and thus the common rule
allow test_filesystem_context_t file_type:dir { getattr open search };
grants the permission in question.
>
> >
> > Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
> > ---
> > policy/test_filesystem.te | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/policy/test_filesystem.te b/policy/test_filesystem.te
> > index 4e27134..46e3f1a 100644
> > --- a/policy/test_filesystem.te
> > +++ b/policy/test_filesystem.te
> > @@ -382,7 +382,7 @@ allow test_filesystem_fscontext_t test_filesystem_context_file_t:file { create g
> >
> > # For testing rootcontext= Set mountpoint to unlabeled first
> > allow test_filesystem_context_t test_file_t:dir { relabelfrom };
> > -allow test_filesystem_context_t unlabeled_t:dir { mounton relabelto };
> > +allow test_filesystem_context_t unlabeled_t:dir { getattr mounton relabelto };
> >
> > #
> > ####################### Rules for nfs_filesystem/test ###################
> > --
> > 2.36.1
> >
>
> --
> Ondrej Mosnacek
> Software Engineer, Linux Security - SELinux kernel
> Red Hat, Inc.
>
