Bug 1595192 - glibc: Backport libio vtable validation improvements
Summary: glibc: Backport libio vtable validation improvements
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: glibc
Version: 28
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Carlos O'Donell
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: 1595191
TreeView+ depends on / blocked
 
Reported: 2018-06-26 10:35 UTC by Florian Weimer
Modified: 2019-05-28 23:21 UTC (History)
10 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1595191
Environment:
Last Closed: 2019-05-28 23:21:10 UTC
Type: Bug
Embargoed:


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Description Florian Weimer 2018-06-26 10:35:46 UTC
+++ This bug was initially created as a clone of Bug #1595191 +++

We should backport the following upstream commits, to fix a bypass and to improve compatibility:

commit 4e8a6346cd3da2d88bbad745a1769260d36f2783
Author: Florian Weimer <fweimer>
Date:   Fri Jun 1 10:41:03 2018 +0200

    libio: Avoid _allocate_buffer, _free_buffer function pointers [BZ #23236]

commit 2d1c89a5d7c872a1109768f50e2508cf9a4b0348
Author: Florian Weimer <fweimer>
Date:   Wed Jun 20 09:45:19 2018 +0200

    libio: Avoid ptrdiff_t overflow in IO_validate_vtable

commit c402355dfa7807b8e0adb27c009135a7e2b9f1b0
Author: Florian Weimer <fweimer>
Date:   Tue Jun 26 10:24:52 2018 +0200

    libio: Disable vtable validation in case of interposition [BZ #23313]

And backport the new test:

commit c402355dfa7807b8e0adb27c009135a7e2b9f1b0
Author: Florian Weimer <fweimer>
Date:   Tue Jun 26 10:24:52 2018 +0200

    libio: Disable vtable validation in case of interposition [BZ #23313]

commit 29055464a03c72762969a2e8734d0d05d4d70e58
Author: Florian Weimer <fweimer>
Date:   Tue Jun 26 12:20:44 2018 +0200

    libio: Add tst-vtables, tst-vtables-interposed

Comment 1 Ben Cotton 2018-11-27 15:05:41 UTC
This message is a reminder that Fedora 27 is nearing its end of life.
On 2018-Nov-30  Fedora will stop maintaining and issuing updates for
Fedora 27. It is Fedora's policy to close all bug reports from releases
that are no longer maintained. At that time this bug will be closed as
EOL if it remains open with a Fedora  'version' of '27'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 27 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 2 Ben Cotton 2019-05-02 20:15:33 UTC
This message is a reminder that Fedora 28 is nearing its end of life.
On 2019-May-28 Fedora will stop maintaining and issuing updates for
Fedora 28. It is Fedora's policy to close all bug reports from releases
that are no longer maintained. At that time this bug will be closed as
EOL if it remains open with a Fedora 'version' of '28'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 28 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 3 Ben Cotton 2019-05-28 23:21:10 UTC
Fedora 28 changed to end-of-life (EOL) status on 2019-05-28. Fedora 28 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.


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