diff options
| -rw-r--r-- | extent_io.c | 1 | ||||
| -rw-r--r-- | mkfs.c | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/extent_io.c b/extent_io.c index 70fecbbf..8f0a8763 100644 --- a/extent_io.c +++ b/extent_io.c @@ -568,6 +568,7 @@ static struct extent_buffer *__alloc_extent_buffer(struct extent_io_tree *tree, BUG(); return NULL; } + memset(eb, 0, sizeof(struct extent_buffer) + blocksize); eb->start = bytenr; eb->len = blocksize; @@ -411,6 +411,13 @@ static int fill_inode_item(struct btrfs_trans_handle *trans, u64 blocks = 0; u64 sectorsize = root->sectorsize; + /* + * btrfs_inode_item has some reserved fields + * and represents on-disk inode entry, so + * zero everything to prevent information leak + */ + memset(dst, 0, sizeof (*dst)); + btrfs_set_stack_inode_generation(dst, trans->transid); btrfs_set_stack_inode_size(dst, src->st_size); btrfs_set_stack_inode_nbytes(dst, 0); |