diff options
| -rw-r--r-- | fs/btrfs/ioctl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index edf5f0093f22..ed3edc283255 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1474,6 +1474,10 @@ static noinline int btrfs_ioctl_resize(struct file *file, } new_size = old_size - new_size; } else if (mod > 0) { + if (new_size > ULLONG_MAX - old_size) { + ret = -EINVAL; + goto out_free; + } new_size = old_size + new_size; } |