Bug #16354: Memory corruption in Enumerable#reverse_each

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 2.5: REQUIRED, 2.6: DONE

[ktsj (Kazuki Tsujimoto)]

Enumerable#reverse_eachのブロック呼び出し中に、対象のEnumerableをto_aしたものを捕まえてサイズを変更するとSEGVすることがあります。

$ ruby -e '(0...1000).reverse_each {|i| i.inspect; ObjectSpace.each_object(Array) {|a| a.clear if a.length == 1000 }}'
-e:1: [BUG] Segmentation fault at 0x0000000000005f19

[ktsj (Kazuki Tsujimoto)]

• Status changed from Open to Closed

Applied in changeset [ruby-dev:50867] [Bug #16354]" href="/projects/ruby-master/repository/git/revisions/ff41663403d3eb76d95f465cb94e14d2faaa04d1">git|ff41663403d3eb76d95f465cb94e14d2faaa04d1.

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Fix memory corruption in Enumerable#reverse_each [ruby-dev:50867] [Bug #16354]

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.5: REQUIRED, 2.6: REQUIRED to 2.5: REQUIRED, 2.6: DONE

ruby_2_6 r67835 merged revision(s) ff41663403d3eb76d95f465cb94e14d2faaa04d1.