diff options
| author | David S. Miller <davem@davemloft.net> | 2016-11-15 10:54:36 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-15 10:54:36 -0500 |
| commit | bb598c1b8c9bf56981927dcb8c0dc34b8ff95342 (patch) | |
| tree | 69fe6d3bcdbf0acb76e42b144d8af5a0234ccdcb /fs/overlayfs | |
| parent | eb2ca35f1814dad3ca547261eedfbbd0d65a0efc (diff) | |
| parent | e76d21c40bd6c67fd4e2c1540d77e113df962b4d (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of bug fixes in 'net' overlapping other changes in
'net-next-.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/overlayfs')
| -rw-r--r-- | fs/overlayfs/copy_up.c | 2 | ||||
| -rw-r--r-- | fs/overlayfs/inode.c | 3 | ||||
| -rw-r--r-- | fs/overlayfs/super.c | 15 |
3 files changed, 17 insertions, 3 deletions
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index aeb60f791418..36795eed40b0 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -178,6 +178,8 @@ static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len) len -= bytes; } + if (!error) + error = vfs_fsync(new_file, 0); fput(new_file); out_fput: fput(old_file); diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index c58f01babf30..7fb53d055537 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -270,9 +270,6 @@ struct posix_acl *ovl_get_acl(struct inode *inode, int type) if (!IS_ENABLED(CONFIG_FS_POSIX_ACL) || !IS_POSIXACL(realinode)) return NULL; - if (!realinode->i_op->get_acl) - return NULL; - old_cred = ovl_override_creds(inode->i_sb); acl = get_acl(realinode, type); revert_creds(old_cred); diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index bcf3965be819..edd46a0e951d 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -1037,6 +1037,21 @@ ovl_posix_acl_xattr_set(const struct xattr_handler *handler, posix_acl_release(acl); + /* + * Check if sgid bit needs to be cleared (actual setacl operation will + * be done with mounter's capabilities and so that won't do it for us). + */ + if (unlikely(inode->i_mode & S_ISGID) && + handler->flags == ACL_TYPE_ACCESS && + !in_group_p(inode->i_gid) && + !capable_wrt_inode_uidgid(inode, CAP_FSETID)) { + struct iattr iattr = { .ia_valid = ATTR_KILL_SGID }; + + err = ovl_setattr(dentry, &iattr); + if (err) + return err; + } + err = ovl_xattr_set(dentry, handler->name, value, size, flags); if (!err) ovl_copyattr(ovl_inode_real(inode, NULL), inode); |