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Backport #9478

Fix segfault at unpacking modified String

Added by nobu (Nobuyoshi Nakada) about 6 years ago. Updated about 6 years ago.

Status:
Closed
Priority:
Normal
[ruby-dev:47947]

Description

1.9以降でr44803で追加したテストがSEGVします。


Related issues

Related to Backport200 - Backport #9484: Fix segfault at unpacking modified StringClosed02/05/2014nagachika (Tomoyuki Chikanaga)Actions
Related to Backport193 - Backport #9485: Fix segfault at unpacking modified StringClosed02/05/2014usa (Usaku NAKAMURA)Actions

Updated by nobu (Nobuyoshi Nakada) about 6 years ago

  • Tracker changed from Bug to Backport
  • Project changed from Ruby master to Backport21

Updated by nobu (Nobuyoshi Nakada) about 6 years ago

  • Assignee set to naruse (Yui NARUSE)

trunkではr44803で修正済みですが、1.9.3以降2.1まで ([""].pack("p")<<"a").unpack("p") でSEGVします。
1.9.2までは起きないようです。

Updated by naruse (Yui NARUSE) about 6 years ago

  • Status changed from Open to Closed
  • % Done changed from 0 to 100

Applied in changeset r44819.


merge revision(s) 44803: [Backport #9478]

* string.c (rb_str_modify_expand): enable capacity and disable
  assocation with packed objects when setting capa, so that
  pack("p") string fails to unpack properly after modified.

Updated by nobu (Nobuyoshi Nakada) about 6 years ago

  • Related to Backport #9484: Fix segfault at unpacking modified String added

Updated by nobu (Nobuyoshi Nakada) about 6 years ago

  • Related to Backport #9485: Fix segfault at unpacking modified String added

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