diff options
| -rw-r--r-- | fs/fsopen.c | 2 | ||||
| -rw-r--r-- | fs/namespace.c | 2 | ||||
| -rw-r--r-- | fs/super.c | 6 |
3 files changed, 4 insertions, 6 deletions
diff --git a/fs/fsopen.c b/fs/fsopen.c index c2891e933ef1..390172772f55 100644 --- a/fs/fsopen.c +++ b/fs/fsopen.c @@ -230,6 +230,8 @@ static int vfs_fsconfig_locked(struct fs_context *fc, int cmd, case FSCONFIG_CMD_CREATE: if (fc->phase != FS_CONTEXT_CREATE_PARAMS) return -EBUSY; + if (!mount_capable(fc)) + return -EPERM; fc->phase = FS_CONTEXT_CREATING; ret = vfs_get_tree(fc); if (ret) diff --git a/fs/namespace.c b/fs/namespace.c index ffb13f0562b0..1141641dff96 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -2786,6 +2786,8 @@ static int do_new_mount(struct path *path, const char *fstype, int sb_flags, err = vfs_parse_fs_string(fc, "source", name, strlen(name)); if (!err) err = parse_monolithic_mount_data(fc, data); + if (!err && !mount_capable(fc)) + err = -EPERM; if (!err) err = vfs_get_tree(fc); if (!err) diff --git a/fs/super.c b/fs/super.c index 2c38541cd89f..72b4a5afcfd6 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1415,12 +1415,6 @@ int vfs_get_tree(struct fs_context *fc) if (fc->root) return -EBUSY; - if (!(fc->sb_flags & SB_KERNMOUNT) && - fc->purpose != FS_CONTEXT_FOR_SUBMOUNT) { - if (!mount_capable(fc)) - return -EPERM; - } - /* Get the mountable root in fc->root, with a ref on the root and a ref * on the superblock. */ |