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Bug 1730281 - podman leaks kernel memory due to return code stored in tmpfs
Summary: podman leaks kernel memory due to return code stored in tmpfs
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: podman
Version: 8.0
Hardware: Unspecified
OS: Unspecified
Target Milestone: rc
: 8.1
Assignee: Matthew Heon
QA Contact: atomic-bugs@redhat.com
Depends On:
Blocks: 1186913 1727325 1734574
TreeView+ depends on / blocked
Reported: 2019-07-16 11:46 UTC by Michele Baldessari
Modified: 2020-10-29 04:11 UTC (History)
10 users (show)

Fixed In Version: podman-1.4.2-2
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2019-11-05 21:02:47 UTC
Type: Bug
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Github containers libpod pull 3551 0 'None' closed Fix memory leak with exit files 2021-01-20 07:27:13 UTC
Red Hat Product Errata RHSA-2019:3403 0 None None None 2019-11-05 21:03:41 UTC

Internal Links: 1755044

Description Michele Baldessari 2019-07-16 11:46:01 UTC
Description of problem:

This BZ is a spinoff from https://bugzilla.redhat.com/show_bug.cgi?id=1699202 . The investigation in the original kernel leak bug has shown that another leak occurred during the creation/destruction cycle of podman containers.

The upstream review meant to fix this leak is here: 

The aim of this BZ is to A) track the fix in podman and B) separate this issue from the other analysis going on in rhbz#1699202

Comment 5 Joy Pu 2019-09-29 07:00:30 UTC
Can reproduce this with podman-1.1.0-1.git006206a.module+el8+2851+dbc75b3b.x86_64. Test with podman-1.4.2-5.module+el8.1.0+4240+893c1ab8.x86_64, the exist file is already not show up in the tmpfs /run/libpod/exist. Details:
# podman run --name test -d busybox
# ls /run/libpod/exits/

Comment 7 errata-xmlrpc 2019-11-05 21:02:47 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.


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