Bug 26102

Summary:	[2.6.37-rc8] BUG kmalloc-256: Poison overwritten.
Product:	IO/Storage	Reporter:	Maciej Rutecki (maciej.rutecki)
Component:	Other	Assignee:	io_other
Status:	CLOSED OBSOLETE
Severity:	normal	CC:	alan, florian, maciej.rutecki, neilb, pluto, rjw
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.37-rc8	Subsystem:
Regression:	Yes	Bisected commit-id:
Bug Depends on:	26012
Bug Blocks:	21782

Description Maciej Rutecki 2011-01-04 19:50:45 UTC

Subject    : [2.6.37-rc8] BUG kmalloc-256: Poison overwritten.
Submitter  : Pawel Sikora <pluto@agmk.net>
Date       : 2010-12-30 15:08
Message-ID : 201012301608.40859.pluto@agmk.net
References : http://marc.info/?l=linux-kernel&m=129372388925679&w=2

This entry is being used for tracking a regression from 2.6.36. Please don't
close it until the problem is fixed in the mainline.

Comment 1 Pawel Sikora 2011-01-04 20:07:35 UTC

please note, that #25782 combo bug is partially (ocfs2 issue)
fixed on mainline but it forks in ugly way into two new bugs:

1).
use-after-free bug in soft-raid subsystem described later
in the thread: http://marc.info/?l=linux-kernel&m=129373800308277&w=2

2).
use-after-free bug in block layer:
https://bugzilla.kernel.org/show_bug.cgi?id=26012

Comment 2 Florian Mickler 2011-03-29 20:59:19 UTC

Are these still a problem in 2.6.38/2.6.39-rc ?