diff options
| -rw-r--r-- | fs/btrfs/inode.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 012ac47351fc..0740a42d393b 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -570,6 +570,10 @@ static bool can_cow_file_range_inline(struct btrfs_inode *inode, if (size > fs_info->sectorsize) return false; + /* We do not allow a non-compressed extent to be as large as block size. */ + if (data_len >= fs_info->sectorsize) + return false; + /* We cannot exceed the maximum inline data size. */ if (data_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info)) return false; @@ -8670,7 +8674,12 @@ static int btrfs_symlink(struct mnt_idmap *idmap, struct inode *dir, struct extent_buffer *leaf; name_len = strlen(symname); - if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info)) + /* + * Symlinks utilize uncompressed inline extent data, which should not + * reach block size. + */ + if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info) || + name_len >= fs_info->sectorsize) return -ENAMETOOLONG; inode = new_inode(dir->i_sb); |