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merge revision(s) e1bd45624c: [Backport #19482]

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Fix crash when allocating classes with newobj hook

	We need to zero out the whole slot when running the newobj hook for a
	newly allocated class because the slot could be filled with garbage,
	which would cause a crash if a GC runs inside of the newobj hook.

	For example, the following script crashes:

	```
	require "objspace"

	GC.stress = true

	ObjectSpace.trace_object_allocations {
	  100.times do
	    Class.new
	  end
	}
	```

	[Bug #19482]
	---
	 gc.c                           | 8 +++++++-
	 test/objspace/test_objspace.rb | 7 +++++++
	 2 files changed, 14 insertions(+), 1 deletion(-)
This commit is contained in:
nagachika 2023-07-16 12:58:21 +09:00
parent 44a8e5e63a
commit 141402d11c
3 changed files with 15 additions and 2 deletions
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2
version.h
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@ -11,7 +11,7 @@
# define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
#define RUBY_VERSION_TEENY 2
#define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
#define RUBY_PATCHLEVEL 67
#define RUBY_PATCHLEVEL 68
#include "ruby/version.h"
#include "ruby/internal/abi.h"