Bug 583292

Summary:	ENOPERM when reading /proc/sys/vm/mmap_min_addr
Product:	[Fedora] Fedora	Reporter:	Thomas DuBuisson <thomas.dubuisson>
Component:	kernel	Assignee:	Eric Paris <eparis>
Status:	CLOSED UPSTREAM	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	12	CC:	anton, dougsland, gansalmon, itamar, jonathan, kernel-maint, rth
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	592417 623519 (view as bug list)		Environment:
Last Closed:	2010-05-14 20:00:30 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	592417

Description Thomas DuBuisson 2010-04-17 17:47:20 UTC

Description of problem:
Despite the permissions showing global read access, /proc/sys/vm/mmap_min_addr can not be read by normal users.


Version-Release number of selected component (if applicable):
2.6.32.11-99 is where I see the issue
2.6.32.11-90 works fine.

How reproducible:
100%

Steps to Reproduce:
1. Boot using kernel 2.6.32.11-99
2. cat /proc/sys/vm/mmap_min_addr
  
Actual results:
ERROR permission denied

Expected results:
"0" or "4096" or whatever your configuration has.

Additional info:

Comment 1 Chuck Ebbert 2010-04-21 16:52:51 UTC

*** Bug 582810 has been marked as a duplicate of this bug. ***

Comment 2 Eric Paris 2010-05-14 20:00:30 UTC

fixed upstream in 2.6.34.  If you need this in an older kernel please reopen this bug and I can backport.