nullptr write in bin_dyldcache.c

[m4drat]

Hi! We've been fuzzing your project and found the following error in librz/bin/p/bin_dyldcache.c

Work environment

OS: Ubuntu 20.04
File format: -
rizin version: 4b38597

Bug description

Nullptr write in librz/bin/p/bin_dyldcache.c:50:14

Steps to reproduce

1. Build docker container from https://github.com/ispras/oss-sydr-fuzz/tree/master/projects/rizin: sudo docker build -t oss-sydr-fuzz-rizin .

2. Run docker container: sudo docker run --privileged --network host -v /etc/localtime:/etc/localtime:ro --rm -it -v $PWD:/fuzz oss-sydr-fuzz-rizin /bin/bash

3. Execute rizin with crashing input (we sent all crashing inputs to you by email):
   /rizin-fuzzing/libfuzzer-asan/bin/rizin -qq crash-bd01541ca2960a0824fd15dd4f82b752

4. You will see the following output:

AddressSanitizer:DEADLYSIGNAL
=================================================================
==2484481==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000300 (pc 0x000000b0e994 bp 0x7fffbbcd4670 sp 0x7fffbbcd4580 T0)
==2484481==The signal is caused by a WRITE memory access.
==2484481==Hint: address points to the zero page.
    #0 0xb0e994 in bin_to_mach0 /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/bin/p/bin_dyldcache.c:50:14
    #1 0xb0e371 in symbols_from_bin /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/bin/p/bin_dyldcache.c:134:32
    #2 0xb0f908 in symbols /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/bin/p/bin_dyldcache.c:343:3
    #3 0xae7bf4 in rz_bin_object_set_items /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/bin/bobj.c:455:16
    #4 0xae706b in rz_bin_object_new /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/bin/bobj.c:319:2
    #5 0xad7d31 in rz_bin_file_new_from_buffer /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/bin/bfile.c:150:19
    #6 0xadf3c7 in rz_bin_open_buf /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/bin/bin.c:272:8
    #7 0xadec27 in rz_bin_open_io /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/bin/bin.c:330:18
    #8 0x1003353 in core_file_do_load_for_io_plugin /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/core/cfile.c:727:23
    #9 0x1003353 in rz_core_bin_load /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/core/cfile.c:974:4
    #10 0x5b9af8 in rz_main_rizin /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/main/rizin.c:1119:14
    #11 0x7f27f4e00082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16
    #12 0x41da3d in _start (/home/madrat/Desktop/rizin-report/rz-installation-asan/bin/rizin+0x41da3d)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/madrat/Desktop/rizin-report/rizin/build-asan/../librz/bin/p/bin_dyldcache.c:50:14 in bin_to_mach0
==2484481==ABORTING

[wargio]

attach the bin here so we can reproduce this.

[m4drat]

Crashing input: crash-bd01541ca2960a0824fd15dd4f82b752.zip