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Bug 176686 - Permissions too open for /proc/PID/smaps
Permissions too open for /proc/PID/smaps
Status: CLOSED DUPLICATE of bug 176687
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Kernel Maintainer List
Brian Brock
Depends On:
  Show dependency treegraph
Reported: 2005-12-29 18:00 EST by Guillaume Chazarain
Modified: 2007-11-30 17:11 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-12-29 18:05:32 EST
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description Guillaume Chazarain 2005-12-29 18:00:03 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; fr-FR; rv:1.7.12) Gecko/20050919 Firefox/1.0.7

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):

How reproducible:

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 18:05:32 EST
Sorry for the double click ;-)

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

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