[Bug libc/9721] dl-tls.c: tls_get_addr, etc, allocate using __libc_memalign but free with free - causes problems if you link a different malloc/free/etc library

[Bug libc/9721] dl-tls.c: tls_get_addr, etc, allocate using __libc_memalign but free with free - causes problems if you link a different malloc/free/etc library

[pasky at suse dot cz]

http://sourceware.org/bugzilla/show_bug.cgi?id=9721

Petr Baudis <pasky at suse dot cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
                 CC|                            |pasky at suse dot cz
         Resolution|                            |WORKSFORME

--- Comment #2 from Petr Baudis <pasky at suse dot cz> 2011-02-04 01:32:44 UTC ---
Unfortunately, no self-contained testcase has been provided.

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[Bug libc/9721] dl-tls.c: tls_get_addr, etc, allocate using __libc_memalign but free with free - causes problems if you link a different malloc/free/etc library

[dichlofos-mv at yandex dot ru]

https://sourceware.org/bugzilla/show_bug.cgi?id=9721

Mikhail Veltishchev <dichlofos-mv at yandex dot ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
                 CC|                            |dichlofos-mv at yandex dot ru
         Resolution|WORKSFORME                  |---

--- Comment #4 from Mikhail Veltishchev <dichlofos-mv at yandex dot ru> ---
So let's reopen it since testcase is now provided.

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[Bug libc/9721] dl-tls.c: tls_get_addr, etc, allocate using __libc_memalign but free with free - causes problems if you link a different malloc/free/etc library

[neleai at seznam dot cz]

https://sourceware.org/bugzilla/show_bug.cgi?id=9721

Ondrej Bilka <neleai at seznam dot cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |neleai at seznam dot cz

--- Comment #5 from Ondrej Bilka <neleai at seznam dot cz> ---
Now when there is a __signal_safe_malloc / __signal_safe_free we could use
these
in linker to fix this bug and avoid most of allocator bootstrap problems.

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[Bug libc/9721] dl-tls.c: tls_get_addr, etc, allocate using __libc_memalign but free with free - causes problems if you link a different malloc/free/etc library

[ppluzhnikov at google dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=9721

Paul Pluzhnikov <ppluzhnikov at google dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ppluzhnikov at google dot com
           Assignee|drepper.fsp at gmail dot com       |ppluzhnikov at google dot com

--- Comment #6 from Paul Pluzhnikov <ppluzhnikov at google dot com> ---
This very likely has been fixed by the async-signal safe TLS patch(es), at
least for non GNU2 TLS variant: tls_get_addr uses __signal_safe_memalign and
__signal_safe_free (private to ld-linux), and should no longer interfere with
any user-supplied allocators.

Assigning to myself. I'll test with the example from comment#3, and close if it
no longer crashes.

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[Bug libc/9721] dl-tls.c: tls_get_addr, etc, allocate using __libc_memalign but free with free - causes problems if you link a different malloc/free/etc library

[ppluzhnikov at google dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=9721

Paul Pluzhnikov <ppluzhnikov at google dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #7 from Paul Pluzhnikov <ppluzhnikov at google dot com> ---
I have removed hard-coded paths from the test, removed gratuitous dependency on
boost:thread, and verified the crash when using more than 1 thread and linking
with jemalloc (the crash goes away when jemalloc is removed from the link).

I then verified that the crash also goes away when I use current libc build.

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[Bug libc/9721] dl-tls.c: tls_get_addr, etc, allocate using __libc_memalign but free with free - causes problems if you link a different malloc/free/etc library

[cvs-commit at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=9721

--- Comment #8 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".

The branch, master has been updated
       via  497b1e69f9ad6d11341735d81b7c9181d168df90 (commit)
      from  e732c5f04958e535fa309b0fae50d67063a1a203 (commit)

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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=497b1e69f9ad6d11341735d81b7c9181d168df90

commit 497b1e69f9ad6d11341735d81b7c9181d168df90
Author: Paul Pluzhnikov <ppluzhnikov@google.com>
Date:   Sun Jan 12 09:23:10 2014 -0800

    Mention BZ 9721

-----------------------------------------------------------------------

Summary of changes:
 NEWS |   32 ++++++++++++++++----------------
 1 files changed, 16 insertions(+), 16 deletions(-)

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[Bug libc/9721] dl-tls.c: tls_get_addr, etc, allocate using __libc_memalign but free with free - causes problems if you link a different malloc/free/etc library

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=9721

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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[Bug libc/9721] dl-tls.c: tls_get_addr, etc, allocate using __libc_memalign but free with free - causes problems if you link a different malloc/free/etc library

[drepper at redhat dot com]

------- Additional Comments From drepper at redhat dot com  2009-01-08 15:28 -------
Where is the test code?  You have to provide a simple, self-contained program.

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           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING


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