A Canonical customer has been running this exact patch (character-
identical) in production for a good while, and reports no regressions,
and that it solved their problem.
** Tags removed: verification-needed
** Tags added: verification-done
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This bug was fixed in the package eglibc - 2.15-0ubuntu10.12
---
eglibc (2.15-0ubuntu10.12) precise; urgency=medium
* cvs-vfprintf-multibyte.diff: Fix memory exhausted bug in who, by no
longer parsing %s format arguments as multibyte strings (LP: #1109327)
*
(seems like the changes got sponsored, unsubscribing sponsors)
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Title:
Race condition using ATOMIC_FASTBINS in _int_free causes crash or heap
** Branch linked: lp:ubuntu/precise-proposed/eglibc
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Title:
Race condition using ATOMIC_FASTBINS in _int_free causes crash or heap
corruption
Hello Josh, or anyone else affected,
Accepted eglibc into precise-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/eglibc/2.15-0ubuntu10.12 in a few
hours, and then in the -proposed repository.
Please help us by testing this new package. See
Chris, please find the updated debdiff.
** Patch removed: precise_eglibc_2.15-0ubuntu10.11.debdiff
https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1020210/+attachment/4317996/+files/precise_eglibc_2.15-0ubuntu10.11.debdiff
** Patch added: precise_eglibc_2.15-0ubuntu10.11.debdiff
Chris, please find the updated debdiff.
** Patch added: precise_eglibc_2.15-0ubuntu10.11.debdiff
https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1020210/+attachment/4317996/+files/precise_eglibc_2.15-0ubuntu10.11.debdiff
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Can you resubmit/recheck this patch against 10.10 and bump version to
10.11?
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Title:
Race condition using ATOMIC_FASTBINS in _int_free causes
After testing on our system for 12.04 LTS I can now confirm it works for
me
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Title:
Race condition using ATOMIC_FASTBINS in _int_free causes
Updated debdiff against eglibc_2.15-0ubuntu10.9.
** Patch added: precise_eglibc_2.15-0ubuntu10.10.debdiff
https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1020210/+attachment/4299972/+files/precise_eglibc_2.15-0ubuntu10.10.debdiff
** Patch removed:
SRU proposal for precise
** Description changed:
+ [Impact]
+
+ * This bug is likely to cause a crash with a SEGV in multithreading
+ applications doing many memory deallocations with ATOMIC_FASTBINS
+ feature enabled.
+
+ [Test Case]
+
+ * Since this is a race condition issue there is no
** Description changed:
[Impact]
- * This bug is likely to cause a crash with a SEGV in multithreading
+ * This bug is likely to cause a crash with a SEGV in multithreading
applications doing many memory deallocations with ATOMIC_FASTBINS
feature enabled.
[Test Case]
- * Since
When should we expect the fix to be merged in the Precise pipeline? It
seems it's the only LTS left out right now.
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Title:
Race condition using
This was fixed in trusty with the upload of 2.19.
** Changed in: eglibc (Ubuntu)
Status: In Progress = Fix Released
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Title:
Race
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2012-4412
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2012-4424
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2013-4237
** CVE added: http://www.cve.mitre.org/cgi-
** Changed in: eglibc (Ubuntu)
Status: Confirmed = In Progress
** Also affects: eglibc (Ubuntu Precise)
Importance: Undecided
Status: New
** Changed in: eglibc (Ubuntu Precise)
Status: New = In Progress
** Changed in: eglibc (Ubuntu Precise)
Assignee: (unassigned) =
** Changed in: eglibc
Status: Confirmed = Fix Released
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Title:
Race condition using ATOMIC_FASTBINS in _int_free causes crash or heap
** Changed in: eglibc
Status: Fix Released = Confirmed
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Title:
Race condition using ATOMIC_FASTBINS in _int_free causes crash or heap
** Changed in: eglibc (Ubuntu)
Assignee: (unassigned) = Adam Conrad (adconrad)
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Title:
Race condition using ATOMIC_FASTBINS in _int_free
** Changed in: eglibc
Status: Incomplete = Fix Released
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Title:
Race condition using ATOMIC_FASTBINS in _int_free causes crash or heap
I believe I am seeing this bug in-action on Ubuntu 12.04.3 AMD64. I
have some gdb backtrace info pasted below. I am surprised glibc malloc
has been broken for more than 1 year. I will definitely avoid it in the
future, but it also shows the potential for future instability at the
OS-level:
##t
Sorry for the previous comment. After testing with jemalloc and
valgrind, I found the problem was caused by a double free within a class
destructor, that was being used within an std::unordered_set, so the
copy constructor was causing deletions and accesses to the deleted
memory. It helped to
I can reproduce this on the Ubuntu Trusty Tahr amd64 daily snapshot:
(d6856805ca67b41eac70213736c198eb *trusty-desktop-amd64.iso)
This confirms the bug's existence up through eglibc 2.17-93ubuntu4. I
have attached an updated recipe for this target.
testuser@trusty:~$ apt-cache policy libc6
** Changed in: eglibc
Status: Confirmed = Incomplete
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Title:
Race condition using ATOMIC_FASTBINS in _int_free causes crash or heap
Launchpad has imported 1 comments from the remote bug at
http://sourceware.org/bugzilla/show_bug.cgi?id=15073.
If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
Reported upstream at:
http://sourceware.org/bugzilla/show_bug.cgi?id=15073
** Bug watch added: Sourceware.org Bugzilla #15073
http://sourceware.org/bugzilla/show_bug.cgi?id=15073
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** Also affects: eglibc via
http://sourceware.org/bugzilla/show_bug.cgi?id=15073
Importance: Unknown
Status: Unknown
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Title:
Race
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: eglibc (Ubuntu)
Status: New = Confirmed
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Title:
** Attachment added: atomic_fastbin.cc
https://bugs.launchpad.net/bugs/1020210/+attachment/3211072/+files/atomic_fastbin.cc
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Title:
Race
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