[ruby-core:115594] [Ruby master Bug#20042] ObjectSpace finalizer can cause segfault
Issue #20042 has been reported by ioquatix (Samuel Williams). ---------------------------------------- Bug #20042: ObjectSpace finalizer can cause segfault https://bugs.ruby-lang.org/issues/20042 * Author: ioquatix (Samuel Williams) * Status: Open * Priority: Normal * Assignee: ko1 (Koichi Sasada) * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- ```ruby class Finalizer def call # <- missing (id) argument end end object = Object.new ObjectSpace.define_finalizer(object, Finalizer.new) object = nil GC.start # segfaults here ``` -- https://bugs.ruby-lang.org/
Issue #20042 has been updated by byroot (Jean Boussier). Backport changed from 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN to 3.0: DONTNEED, 3.1: REQUIRED, 3.2: REQUIRED It started on 3.1: ``` :ok: 1.8 -- 3.0 (no stdout :speak_no_evil:) :ok: 3.1,3.2 <internal:gc>:34: warning: Exception in finalizer #<Method: Object#fin() -:2> -:2:in `fin': wrong number of arguments (given 1, expected 0) (ArgumentError) from <internal:gc>:34:in `call' from <internal:gc>:34:in `start' from -:7:in `<main>' :ok: 7e05e9ff94 (2023-12-06T06:48:55Z) <internal:gc>:39: warning: Exception in finalizer #<Method: Object#fin() -:2> -:2:in `fin': wrong number of arguments (given 1, expected 0) (ArgumentError) from <internal:gc>:39:in `call' from <internal:gc>:39:in `start' from -:7:in `<main>' ``` ---------------------------------------- Bug #20042: ObjectSpace finalizer can cause segfault https://bugs.ruby-lang.org/issues/20042#change-105530 * Author: ioquatix (Samuel Williams) * Status: Open * Priority: Normal * Assignee: ko1 (Koichi Sasada) * Backport: 3.0: DONTNEED, 3.1: REQUIRED, 3.2: REQUIRED ---------------------------------------- ```ruby class Finalizer def call # <- missing (id) argument end end object = Object.new ObjectSpace.define_finalizer(object, Finalizer.new) object = nil GC.start # segfaults here ``` -- https://bugs.ruby-lang.org/
Issue #20042 has been updated by byroot (Jean Boussier). Actually nevermind, my simplification was wrong. Using exactly your script, it crash all the way to 3.0. ``` :x: 3.0 ｀｀｀<internal:gc>:35: [BUG] Stack consistency error (sp: 17, bp: 15) ruby 3.0.5p211 (2022-11-24 revision ba5cf0f7c5) [x86_64-linux] -- Control frame information ----------------------------------------------- c:0003 p:0011 s:0017 e:000014 METHOD <internal:gc>:35 c:0002 p:0060 s:0007 E:001af8 EVAL -:10 [FINISH] c:0001 p:0000 s:0003 E:002140 (none) [FINISH] -- Ruby level backtrace information ---------------------------------------- :x: 3.1 <internal:gc>:34: warning: Exception in finalizer #<Finalizer:0x00007fc730f72e30> -:2:in `call': wrong number of arguments (given 1, expected 0) (ArgumentError) from <internal:gc>:34:in `start' from -:10:in `<main>' <internal:gc>:35:in `start': Stack consistency error (sp: 17, bp: 15) (fatal) :x: 3.2 ｀｀｀<internal:gc>:34: warning: Exception in finalizer #<Finalizer:0x00007fe950ab9d98> -:2:in `call': wrong number of arguments (given 1, expected 0) (ArgumentError) from <internal:gc>:34:in `start' from -:10:in `<main>' <internal:gc>:35: [BUG] Stack consistency error (sp: 17, bp: 15) :x: 7e05e9ff94 (2023-12-06T06:48:55Z) ｀｀｀<internal:gc>:39: warning: Exception in finalizer #<Finalizer:0x00007fae4e314850> -:2:in `call': wrong number of arguments (given 1, expected 0) (ArgumentError) from <internal:gc>:39:in `start' from -:10:in `<main>' <internal:gc>:40: [BUG] Stack consistency error (sp: 17, bp: 15) ``` ---------------------------------------- Bug #20042: ObjectSpace finalizer can cause segfault https://bugs.ruby-lang.org/issues/20042#change-105531 * Author: ioquatix (Samuel Williams) * Status: Open * Priority: Normal * Assignee: ko1 (Koichi Sasada) * Backport: 3.0: DONTNEED, 3.1: REQUIRED, 3.2: REQUIRED ---------------------------------------- ```ruby class Finalizer def call # <- missing (id) argument end end object = Object.new ObjectSpace.define_finalizer(object, Finalizer.new) object = nil GC.start # segfaults here ``` -- https://bugs.ruby-lang.org/
Issue #20042 has been updated by nagachika (Tomoyuki Chikanaga). Backport changed from 3.0: REQUIRED, 3.1: REQUIRED, 3.2: REQUIRED to 3.0: REQUIRED, 3.1: REQUIRED, 3.2: DONE ruby_3_2 0cc0e43745ffc13a596441adccee295274d99a0b merged revision(s) f9a48548cf3ef54fc0a385ccd78c708737055ecc. ---------------------------------------- Bug #20042: ObjectSpace finalizer can cause segfault https://bugs.ruby-lang.org/issues/20042#change-106306 * Author: ioquatix (Samuel Williams) * Status: Closed * Priority: Normal * Assignee: ko1 (Koichi Sasada) * Backport: 3.0: REQUIRED, 3.1: REQUIRED, 3.2: DONE ---------------------------------------- ```ruby class Finalizer def call # <- missing (id) argument end end object = Object.new ObjectSpace.define_finalizer(object, Finalizer.new) object = nil GC.start # segfaults here ``` -- https://bugs.ruby-lang.org/
participants (3)
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byroot (Jean Boussier) -
ioquatix (Samuel Williams)
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nagachika (Tomoyuki Chikanaga)