Re: [PATCH] btrfs: Use kfree() in btrfs_ioctl_get_subvol_info()

From: David Sterba
Date: Tue Jun 16 2020 - 13:12:03 EST


On Tue, Jun 16, 2020 at 11:31:59AM -0400, Waiman Long wrote:
> In btrfs_ioctl_get_subvol_info(), there is a classic case where kzalloc()
> was incorrectly paired with kzfree(). According to David Sterba, there
> isn't any sensitive information in the subvol_info that needs to be
> cleared before freeing. So kzfree() isn't really needed, use kfree()
> instead.
>
> Reported-by: David Sterba <dsterba@xxxxxxx>
> Signed-off-by: Waiman Long <longman@xxxxxxxxxx>

Added to the devel patch queue, thanks.