> On 13 Apr 2021, at 15:44, Jason Gunthorpe <j...@ziepe.ca> wrote: > > On Tue, Apr 13, 2021 at 09:42:43PM +0800, Hao Sun wrote: >> Jason Gunthorpe <j...@ziepe.ca> 于2021年4月13日周二 下午9:34写道： >>> >>> On Tue, Apr 13, 2021 at 11:36:41AM +0800, Hao Sun wrote: >>>> Hi >>>> >>>> When using Healer(https://github.com/SunHao-0/healer/tree/dev) to fuzz >>>> the Linux kernel, I found two use-after-free bugs which have been >>>> reported a long time ago by Syzbot. >>>> Although the corresponding patches have been merged into upstream, >>>> these two bugs can still be triggered easily. >>>> The original information about Syzbot report can be found here: >>>> https://syzkaller.appspot.com/bug?id=8dc0bcd9dd6ec915ba10b3354740eb420884acaa >>>> https://syzkaller.appspot.com/bug?id=95f89b8fb9fdc42e28ad586e657fea074e4e719b >>> >>> Then why hasn't syzbot seen this in a year's time? Seems strange >>> >> >> Seems strange to me too, but the fact is that the reproduction program >> in attachment can trigger these two bugs quickly. > > Do you have this in the C format?
How can a commit changing arch m68k provoke a bug when running on x86_64? Håkon > > Jason
