On Thu, Feb 17, 2022 at 02:59:12PM -0800, Leah Rumancik wrote:
> From: Zhang Yi <yi.zhang@xxxxxxxxxx>
>
> commit 8dd27fecede55e8a4e67eef2878040ecad0f0d33 upstream.
>
> After commit 5946d089379a ("ext4: check for overlapping extents in
> ext4_valid_extent_entries()"), we can check out the overlapping extent
> entry in leaf extent blocks. But the out-of-order extent entry in index
> extent blocks could also trigger bad things if the filesystem is
> inconsistent. So this patch add a check to figure out the out-of-order
> index extents and return error.
>
> [Added pblk argument to ext4_valid_extent_entries because pblk is
> updated in the case of overlapping extents. This argument was added
> in commit 54d3adbc29f0c7c53890da1683e629cd220d7201.]
>
> Signed-off-by: Zhang Yi <yi.zhang@xxxxxxxxxx>
> Reviewed-by: Theodore Ts'o <tytso@xxxxxxx>
> Link: https://lore.kernel.org/r/20210908120850.4012324-2-yi.zhang@xxxxxxxxxx
> Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
> Signed-off-by: Leah Rumancik <leah.rumancik@xxxxxxxxx>
> ---
> fs/ext4/extents.c | 21 ++++++++++++++-------
> 1 file changed, 14 insertions(+), 7 deletions(-)
All now queued up, thanks.
greg k-h
