On 5/31/22 1:55 AM, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 3b46e4e44180 Add linux-next specific files for 20220531 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=16e151f5f00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=ccb8d66fc9489ef > dashboard link: https://syzkaller.appspot.com/bug?extid=b6c9b65b6753d333d833 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > Unfortunately, I don't have any reproducer for this issue yet. > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+b6c9b65b6753d333d833@xxxxxxxxxxxxxxxxxxxxxxxxx > > ================================================================================ > ================================================================================ > UBSAN: array-index-out-of-bounds in fs/io_uring.c:8860:19 > index 75 is out of range for type 'io_op_def [47]' 'def' is just set here, it's not actually used after 'opcode' has been verified. -- Jens Axboe
