From 177b55a50dc37b13fe82596a09d77d407a26a2c2 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Thu, 1 Sep 2016 11:11:59 +0200 Subject: ovl: remove posix_acl_default from workdir commit c11b9fdd6a612f376a5e886505f1c54c16d8c380 upstream. Clear out posix acl xattrs on workdir and also reset the mode after creation so that an inherited sgid bit is cleared. Signed-off-by: Miklos Szeredi Signed-off-by: Greg Kroah-Hartman --- fs/overlayfs/super.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'fs/overlayfs') diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index 44841ef103a9..cd609f43ba65 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -798,6 +798,10 @@ retry: struct kstat stat = { .mode = S_IFDIR | 0, }; + struct iattr attr = { + .ia_valid = ATTR_MODE, + .ia_mode = stat.mode, + }; if (work->d_inode) { err = -EEXIST; @@ -813,6 +817,21 @@ retry: err = ovl_create_real(dir, work, &stat, NULL, NULL, true); if (err) goto out_dput; + + err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_DEFAULT); + if (err && err != -ENODATA) + goto out_dput; + + err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_ACCESS); + if (err && err != -ENODATA) + goto out_dput; + + /* Clear any inherited mode bits */ + inode_lock(work->d_inode); + err = notify_change(work, &attr, NULL); + inode_unlock(work->d_inode); + if (err) + goto out_dput; } out_unlock: inode_unlock(dir); -- cgit v1.2.3