Hi Linus,
Can you pull these two fixes to the afs filesystem please?
(1) Fix an oops in AFS that can be triggered by accessing one of the
afs.yfs.* xattrs against an OpenAFS server - for instance by "cp
-a"[1], "rsync -X" or getfattr[2]. These try and copy all of the
xattrs.
cp and rsync should pay attention to the list in /etc/xattr.conf, but
cp doesn't on Ubuntu and rsync doesn't seem to on Ubuntu or Fedora.
xattr.conf has been modified upstream[3], and a new version has just
been cut that includes it. I've logged a bug against rsync for the
problem there[4].
(2) Stop listing "afs.*" xattrs[6], particularly ACL ones[8] so that they
don't confuse cp and rsync. This removes them from the list returned
by listxattr(), but they're still available to get/set.
Changes:
ver #2:
- Hide all of the afs.* xattrs, not just the ACL ones[7].
David
Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003498.html [1]
Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003501.html [2]
Link: https://git.savannah.nongnu.org/cgit/attr.git/commit/?id=74da517cc655a82ded715dea7245ce88ebc91b98 [3]
Link: https://github.com/WayneD/rsync/issues/163 [4]
Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003516.html [5]
Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003524.html [6]
Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003565.html # v1
Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003568.html [7]
Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003570.html [8]
Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003571.html # v2
---
The following changes since commit a38fd8748464831584a19438cbb3082b5a2dab15:
Linux 5.12-rc2 (2021-03-05 17:33:41 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git tags/afs-fixes-20210315
for you to fetch changes up to a7889c6320b9200e3fe415238f546db677310fa9:
afs: Stop listxattr() from listing "afs.*" attributes (2021-03-15 17:09:54 +0000)
----------------------------------------------------------------
AFS fixes
----------------------------------------------------------------
David Howells (2):
afs: Fix accessing YFS xattrs on a non-YFS server
afs: Stop listxattr() from listing "afs.*" attributes
fs/afs/dir.c | 1 -
fs/afs/file.c | 1 -
fs/afs/fs_operation.c | 7 +++++--
fs/afs/inode.c | 1 -
fs/afs/internal.h | 1 -
fs/afs/mntpt.c | 1 -
fs/afs/xattr.c | 31 +++++++------------------------
7 files changed, 12 insertions(+), 31 deletions(-)
