diff options
| -rw-r--r-- | fs/buffer.c | 2 | ||||
| -rw-r--r-- | fs/ext4/inode.c | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index 8c19e705b9c3..645f0387dfe1 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2187,6 +2187,8 @@ static void __block_commit_write(struct folio *folio, size_t from, size_t to) struct buffer_head *bh, *head; bh = head = folio_buffers(folio); + if (!bh) + return; blocksize = bh->b_size; block_start = 0; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index c81cf67d8e77..941c1c0d5c6e 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3019,6 +3019,11 @@ static int ext4_da_do_write_end(struct address_space *mapping, bool disksize_changed = false; loff_t new_i_size; + if (unlikely(!folio_buffers(folio))) { + folio_unlock(folio); + folio_put(folio); + return -EIO; + } /* * block_write_end() will mark the inode as dirty with I_DIRTY_PAGES * flag, which all that's needed to trigger page writeback. |