On 5/6/22 9:57 AM, Pavel Begunkov wrote: > On 5/6/22 03:16, Jens Axboe wrote: >> On 5/5/22 8:11 AM, Guo Xuenan wrote: >>> Hi, Pavel & Jens >>> >>> CVE-2022-1508[1] contains an patch[2] of io_uring. As Jones reported, >>> it is not enough only apply [2] to stable-5.10. >>> Io_uring is very valuable and active module of linux kernel. >>> I've tried to apply these two patches[3] [4] to my local 5.10 code, I >>> found my understanding of io_uring is not enough to resolve all conflicts. >>> >>> Since 5.10 is an important stable branch of linux, we would appreciate >>> your help in solving this problem. >> >> Yes, this really needs to get buttoned up for 5.10. I seem to recall >> there was a reproducer for this that was somewhat saner than the >> syzbot one (which doesn't do anything for me). Pavel, do you have one? > > No, it was the only repro and was triggering the problem > just fine back then I modified it a bit and I can now trigger it. -- Jens Axboe