From: Waiman Long longman@redhat.com
[ Upstream commit b091f7fede97cc64f7aaad3eeb37965aebee3082 ]
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.
Signed-off-by: Waiman Long longman@redhat.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/btrfs/ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index a5ae02bf3652b..60418b1fcef5b 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2723,7 +2723,7 @@ static int btrfs_ioctl_get_subvol_info(struct file *file, void __user *argp)
out: btrfs_free_path(path); - kzfree(subvol_info); + kfree(subvol_info); return ret; }