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Product Link

https://github.com/caryll/otfcc

POC file

https://github.com/Cvjark/Poc/files/9059957/id33_SEGV_sample_otfccdump%2B0x4fbbb6.zip

Command to reproduce

./otfccbuild --pretty [sample file] -o /dev/null

Product name & version

last github commit code : 617837b

Problem Type

SEGV

Crash Detail

AddressSanitizer:DEADLYSIGNAL
=================================================================
==2966==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000036 (pc 0x0000004fbbb6 bp 0x7ffddb299ed0 sp 0x7ffddb299da0 T0)
==2966==The signal is caused by a READ memory access.
==2966==Hint: address points to the zero page.
    #0 0x4fbbb6  (/home/bupt/Desktop/otfcc/bin/release-x64/otfccdump+0x4fbbb6)
    #1 0x4f5932  (/home/bupt/Desktop/otfcc/bin/release-x64/otfccdump+0x4f5932)
    #2 0x7f3e141cac86 in __libc_start_main /build/glibc-CVJwZb/glibc-2.27/csu/../csu/libc-start.c:310
    #3 0x41c549  (/home/bupt/Desktop/otfcc/bin/release-x64/otfccdump+0x41c549)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/home/bupt/Desktop/otfcc/bin/release-x64/otfccdump+0x4fbbb6) 
==2966==ABORTING

Crash summary

SUMMARY: AddressSanitizer: SEGV (/home/bupt/Desktop/otfcc/bin/release-x64/otfccdump+0x4fbbb6)