On 03/28/2017 04:38 PM, Andrew Morton wrote: > On Thu, 23 Mar 2017 11:19:38 +0100 Dmitry Vyukov <[email protected]> wrote: > >> Hello, >> >> I've got the following BUG while running syzkaller fuzzer. >> Note the injected kmalloc failure, most likely it's the root cause. >> > > Yes, probably the logic(?) in region_chg() leaked a > resv->adds_in_progress++, although I'm not sure how. And afaict that > code can leak the memory at *nrg if the `trg' allocation attempt failed > on the second or later pass around the retry loop. > > Blah. Does someone want to take a look at it?
I sent out a patch to address this and Hillf Acked. Unfortunately, there was a typo in your e-mail when I sent out the patch. So, you may not have noticed. [PATCH] mm/hugetlb: Don't call region_abort if region_chg fails http://marc.info/?l=linux-mm&m=149033588500724&w=2 If you need/want me to send again, let me know. -- Mike Kravetz
