diff options
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 86b2a483c1ab..76e0b5ed75dd 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -5273,6 +5273,14 @@ struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info, return ERR_PTR(-EINVAL); } + if (fs_info->sectorsize < PAGE_SIZE && + offset_in_page(start) + len > PAGE_SIZE) { + btrfs_err(fs_info, + "tree block crosses page boundary, start %llu nodesize %lu", + start, len); + return ERR_PTR(-EINVAL); + } + eb = find_extent_buffer(fs_info, start); if (eb) return eb; |