After I updated XQuartz to the new beta (2.7.9_beta1), IDL doesn't even start anymore. I have this problem with versions 7.1 and 8.2 of the software. The error I got from IDL 7.1 was variable, depending on the machine I was testing, but always with the same outcome, something like this: ==3355==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x62100000c500 at pc 0x000101e384cd bp 0x7fff5fbfe0f0 sp 0x7fff5fbfd8b0 WRITE of size 26988 at 0x62100000c500 thread T0 #0 0x101e384cc in wrap_readdir (libclang_rt.asan_osx_dynamic.dylib+0x274cc) #1 0x10042999a in search_dir (libidl.7.1.dylib+0x40f99a) #2 0x10042a1fe in IDL_FillPathExpand (libidl.7.1.dylib+0x4101fe) #3 0x10042a596 in IDL_FillPathExpandSysvDLM (libidl.7.1.dylib+0x410596) #4 0x100428577 in init_sysv_dlm_path (libidl.7.1.dylib+0x40e577) #5 0x10042947d in IDL_SysvInit (libidl.7.1.dylib+0x40f47d) #6 0x1000230ff in IDL_Initialize (libidl.7.1.dylib+0x90ff) #7 0x100004435 in ops_main (idl_opserver+0x100004435) #8 0x100004788 in main (idl_opserver+0x100004788) #9 0x100000d7f in start (idl_opserver+0x100000d7f) #10 0x1 (idl_opserver)+0x1) 0x62100000c500 is located 0 bytes to the right of 4096-byte region [0x62100000b500,0x62100000c500) allocated by thread T0 here: #0 0x101e57770 in wrap_malloc (libclang_rt.asan_osx_dynamic.dylib+0x46770) #1 0x7fff84e9705b in __opendir_common (libsystem_c.dylib+0x8205b) #2 0x101e38194 in wrap_opendir (libclang_rt.asan_osx_dynamic.dylib+0x27194) #3 0x10042990f in search_dir (libidl.7.1.dylib+0x40f90f) #4 0x10042a1fe in IDL_FillPathExpand (libidl.7.1.dylib+0x4101fe) #5 0x10042a596 in IDL_FillPathExpandSysvDLM (libidl.7.1.dylib+0x410596) #6 0x100428577 in init_sysv_dlm_path (libidl.7.1.dylib+0x40e577) #7 0x10042947d in IDL_SysvInit (libidl.7.1.dylib+0x40f47d) #8 0x1000230ff in IDL_Initialize (libidl.7.1.dylib+0x90ff) #9 0x100004435 in ops_main (idl_opserver+0x100004435) #10 0x100004788 in main (idl_opserver+0x100004788) #11 0x100000d7f in start (idl_opserver+0x100000d7f) #12 0x1 (idl_opserver)+0x1) When I revert to a prior version of XQuartz, I got no error staring these applications.
This is a bug in IDL that address sanitization found. You should report this bug to the authors of IDL. Note that ASan is only being enabled in beta versions of XQuartz.
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