panic: Data modified on freelist: word 4 of object 0xffff800000ca0a00 size 0x194 previous type counters (0x6563 != 0xdeadbeef)

Starting stack trace...
panic(ffffffff8255ae7e) at panic+0x155 sys/kern/subr_prf.c:233
malloc(194,e,1) at malloc+0xa85 sys/kern/kern_malloc.c:364
sys_ioctl(ffff8000230b57a8,ffff800022edb738,ffff800022edb790) at sys_ioctl+0x2b1
syscall(ffff800022edb800) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x2443ecda010, count: 252
End of stack trace.