9 Nov
2018
9 Nov
'18
2 p.m.
On Fri, 09 Nov 2018 13:17:25 +0100, Alexander Potapenko wrote:
It's still strange that the conversion function gets called for the uninitialized source. But we should clear the vmalloc page in anyway for avoiding such a problem. And even better would be to use kvzalloc() for a better performance.
Could you check whether the patch works?
The patch works and fixes the problem for me.
OK, I'm going to queue it, then.
I forgot the way to trigger the test for kmsan stuff. IIRC, just pushing to my tree and triggering syz test won't work for KMSAN, right?
Right, you need to test against KMSAN tree, see https://github.com/google/syzkaller/blob/master/docs/syzbot.md#kmsan-bugs
Thanks, that's the note I forgot :)
Takashi