malloc_uninit: 1152 bytes of 'tap' still allocated on cpu 6 Fatal user address access from kernel mode from uaf_stress at ffffffff82600afa Fatal trap 12: page fault while in kernel mode cpuid = 4; lapic id = 4 fault virtual address = 0x25 fault code = supervisor write data, page not present instruction pointer = 0x8:0xffffffff82600afa stack pointer = 0x10:0xfffff80117b033e8 frame pointer = 0x10:0xfffff80117b03418 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 0, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 923 current thread = pri 10 kernel: type 12 trap, code=2 CPU4 stopping CPUs: 0x0000002f stopped Stopped at tapcreate+0x11a: movl -0x1510310(%rip),%eax db>