==30711==ERROR: AddressSanitizer: FPE on unknown address 0x00000e8b72e5 (pc 0x00000e8b72e5 bp 0x7ffd466acb50 sp 0x7ffd466aca20 T0)
    #0 0xe8b72e4 in ccvf_format::load(io_generic*, unsigned int, floppy_image*) /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/lib/formats/ccvf_dsk.cpp:119:28
    #1 0xc6d24cd in floppy_image_device::call_load() /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/devices/imagedev/floppy.cpp:428:20
    #2 0xc6d317f in non-virtual thunk to floppy_image_device::call_load() /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/devices/imagedev/floppy.cpp
    #3 0xe108af6 in device_image_interface::finish_load() /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/emu/diimage.cpp:1163:11
    #4 0xe5686c8 in image_manager::postdevice_init() /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/emu/image.cpp:233:36
    #5 0xe1f0ca6 in driver_device::device_start() /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/emu/driver.cpp:207:20
    #6 0xe0e345d in device_t::start() /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/emu/device.cpp:489:2
    #7 0xe6a1f65 in running_machine::start_all_devices() /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/emu/machine.cpp:1040:13
    #8 0xe6a005d in running_machine::start() /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/emu/machine.cpp:265:2
    #9 0xe6a2a41 in running_machine::run(bool) /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/emu/machine.cpp:310:3
    #10 0x8cd10e0 in mame_machine_manager::execute() /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/frontend/mame/mame.cpp:236:19
    #11 0x8e1e0d3 in cli_frontend::start_execution(mame_machine_manager*, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&) /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/frontend/mame/clifront.cpp:257:22
    #12 0x8e20ee0 in cli_frontend::execute(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >&) /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/frontend/mame/clifront.cpp:273:3
    #13 0x8cd3717 in emulator_info::start_frontend(emu_options&, osd_interface&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >&) /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/frontend/mame/mame.cpp:336:18
    #14 0x8acddf2 in main /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/osd/sdl/sdlmain.cpp:216:9
    #15 0x7f23e2be082f in __libc_start_main /build/glibc-bfm8X4/glibc-2.23/csu/../csu/libc-start.c:291
    #16 0x1431838 in _start (/mnt/mame/mame64_as+0x1431838)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: FPE /mnt/mame/build/projects/sdl/mame/gmake-linux-clang/../../../../../src/lib/formats/ccvf_dsk.cpp:119:28 in ccvf_format::load(io_generic*, unsigned int, floppy_image*)