summaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
authorMiklos Szeredi <mszeredi@redhat.com>2016-09-01 11:11:59 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-15 08:27:52 +0200
commitd57a6c748059eb1f90cde4b40091f57617b72609 (patch)
tree783722b1758843b3158b27e0c9072f483b1ef3e6 /fs
parent48fd20d7237bfefd18750b1b38f426c7e210462d (diff)
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 <mszeredi@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/overlayfs/super.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 70a7bbe199d0..350905f17bcc 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -763,6 +763,10 @@ 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;
@@ -778,6 +782,21 @@ 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:
mutex_unlock(&dir->i_mutex);