[Linux-kernel-mentees] [PATCH] fs: fix KMSAN uninit-value bug by initializing nd in do_file_open_root

Anant Thazhemadam anant.thazhemadam at gmail.com
Sat Sep 19 11:33:50 UTC 2020

On 19-09-2020 22:25, Al Viro wrote:
> On Sat, Sep 19, 2020 at 05:17:27PM +0100, Al Viro wrote:
>> Lovely...  That would get an empty path and non-directory for a starting
>> point, but it should end up with LAST_ROOT in nd->last_type.  Which should
>> not be able to reach the readers of those fields...  Which kernel had
>> that been on?
> Yecchhh...  I see what's going on; I suspect that this ought to be enough.
> Folks, could somebody test it on the original reproducer setup?

Sure. I can do that.


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