Here's a pair of fixes for AFS.
(1) Fix an oops in AFS that can be triggered by accessing one of the
afs.yfs.* xattrs against a yfs server[1][2] - for instance by "cp -a"
or "rsync -X". These try and copy all of the xattrs.
They 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], but a new version hasn't
been cut yet. I've logged a bug against rsync for the problem
there[4].
(2) Stop listing "afs.*" xattrs[6], particularly ACL ones[8]. This
removes them from the list returned by listxattr(), but they're still
available to get/set.
The patches can be found here:
https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=afs-fixes
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]
---
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/inode.c | 1 -
fs/afs/internal.h | 1 -
fs/afs/mntpt.c | 1 -
fs/afs/xattr.c | 23 -----------------------
6 files changed, 28 deletions(-)
