apply commit 61cc4534b655 ("locking/lockdep: Avoid potential access of invalid memory in lock_class") to linux-5.4-stable

[Tetsuo Handa]

On 2022/03/16 23:26, Greg KH wrote:
> On Wed, Mar 16, 2022 at 02:01:12PM +0800, Cheng Jui Wang wrote:
>> Hi Reviewers,
>>
>> This patch fixes a use-after-free error when /proc/lockdep is read by
>> user after a lockdep splat.
>>
>> I checked and I think this patch can be applied to stable-5.4 and
>> later. 
>>
>> commit: 61cc4534b6550997c97a03759ab46b29d44c0017
>> Subject: locking/lockdep: Avoid potential access of invalid memory in
>> lock_class
> 
> I do not see that commit id in Linus's tree, are you sure it is correct?

It is in linux-next.git, and will be sent to linux.git when next merge window opens.