in mruby/mruby

Description There is a NULL Pointer Dereference in aryconcat array.c:301. This bug has been found on mruby lastest commit hash ecb28f4bf463483cf914c799d086b0cfff997aee on Ubuntu 20.04 for x8664/amd64. Proof of Concept The crash is not reproducible in a debug build, so a release build config must ...

shopify-scripts: Crash in ary_concat()

The code above raises a segmentation fault both in mruby and mruby-engine N case when nil -do end def eend end ASAN report : line 1:3: '' interpreted as argument prefix ASAN:SIGSEGV ================================================================= ==111090==ERROR: AddressSanitizer: SEGV on unknow...

shopify-scripts: Null pointer dereference in ary_concat

Hi, The following file causes a segmentation fault in mruby, which also causes a segmentation fault in mruby-engine. I've minimized this file down to the bare bones what crashes it, then renamed variables and tidied so you can see what is needed and what isn't. a=0 b=nil a.each do |a| a = case a...