prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x0, &(0x7f0000000000)) r0 = syz_io_uring_setup(0x2687, &(0x7f0000000080), &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ffe000/0x2000)=nil, &(0x7f0000000100), &(0x7f0000000140)) fstat(r0, &(0x7f00000001c0))