From 70bfb3a8d661d4fdc742afc061b88a7f3fc9f500 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 15 Dec 2022 14:24:03 +0100 Subject: udf: Truncate added extents on failed expansion When a file expansion failed because we didn't have enough space for indirect extents make sure we truncate extents created so far so that we don't leave extents beyond EOF. CC: stable@vger.kernel.org Signed-off-by: Jan Kara --- fs/udf/inode.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'fs/udf/inode.c') diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 9655fc014c7a..e077183e2ee3 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -431,8 +431,10 @@ static int udf_do_extend_file(struct inode *inode, } if (fake) { - udf_add_aext(inode, last_pos, &last_ext->extLocation, - last_ext->extLength, 1); + err = udf_add_aext(inode, last_pos, &last_ext->extLocation, + last_ext->extLength, 1); + if (err < 0) + goto out_err; count++; } else { struct kernel_lb_addr tmploc; @@ -466,7 +468,7 @@ static int udf_do_extend_file(struct inode *inode, err = udf_add_aext(inode, last_pos, &last_ext->extLocation, last_ext->extLength, 1); if (err) - return err; + goto out_err; count++; } if (new_block_bytes) { @@ -475,7 +477,7 @@ static int udf_do_extend_file(struct inode *inode, err = udf_add_aext(inode, last_pos, &last_ext->extLocation, last_ext->extLength, 1); if (err) - return err; + goto out_err; count++; } @@ -489,6 +491,11 @@ out: return -EIO; return count; +out_err: + /* Remove extents we've created so far */ + udf_clear_extent_cache(inode); + udf_truncate_extents(inode); + return err; } /* Extend the final block of the file to final_block_len bytes */ -- cgit v1.2.3-73-gaa49b