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Date: Thu, 27 Nov 2008 21:17:46 +0800
From: "Eugene Teo" <>
Subject: CVE request: kernel: fix soft lockups/OOM issues with unix garbage collector

This bug is different from CVE-2008-5029, but it can be triggered by
the same reproducers. It requires a CVE name.

"Reported and fixed by Dann Frazier <>:
This is an implementation of David Miller's suggested fix in:

Paraphrasing the description from the above report, it makes sendmsg()
block while UNIX garbage collection is in progress. This avoids a
situation where child processes continue to queue new FDs over a
AF_UNIX socket to a parent
which is in the exit path and running garbage collection on these FDs.
This contention can result in soft lockups and oom-killing of
unrelated processes."




Thanks, Eugene

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