On 03/28/2017 04:38 PM, Andrew Morton wrote: > On Thu, 23 Mar 2017 11:19:38 +0100 Dmitry Vyukov <dvyukov@xxxxxxxxxx> 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
