Bug 176686

Summary: Permissions too open for /proc/PID/smaps
Product: [Fedora] Fedora Reporter: Guillaume Chazarain <guichaz>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED DUPLICATE QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 4CC: wtogami
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Target Release: ---   
Hardware: i386   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2005-12-29 23:05:32 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Guillaume Chazarain 2005-12-29 23:00:03 UTC 
From Bugzilla Helper:
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Description of problem:
The execshield patch tightens the permissions of /proc/PID/maps
but not the new /proc/PID/smaps.

Version-Release number of selected component (if applicable):
kernel-2.6.14-1.1653_FC4smp

How reproducible:
Always

Steps to Reproduce:
1. cat /proc/1/smaps


Actual Results:  I could discover the memory layout of a process I don't own.

Expected Results:  Like with cat /proc/1/maps I should not have access to these informations.

Additional info:

Not sure about the security risk involved, but it is
inconsistent with the /proc/PID/maps permissions.
Comment 1 Guillaume Chazarain 2005-12-29 23:05:32 UTC 
Sorry for the double click ;-)

*** This bug has been marked as a duplicate of 176687 ***