Bug 652529 (CVE-2010-4162) - CVE-2010-4162 kernel: bio: integer overflow page count when mapping/copying user data
Summary: CVE-2010-4162 kernel: bio: integer overflow page count when mapping/copying u...
Alias: CVE-2010-4162
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: Engineering652530 Engineering652531 Engineering652532
TreeView+ depends on / blocked
Reported: 2010-11-12 06:27 UTC by Eugene Teo (Security Response)
Modified: 2023-05-11 16:36 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2013-06-05 17:53:36 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:0007 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2011-01-11 19:44:55 UTC
Red Hat Product Errata RHSA-2011:0330 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2011-03-10 20:04:13 UTC

Description Eugene Teo (Security Response) 2010-11-12 06:27:04 UTC
Due to integer underflow and overflow issues when determining the number of pages required for maliciously crafted I/O requests, a local user could send a device ioctl that results in the sequential allocation of a very large number of pages, causing the OOM killer to be invoked and crashing the system:

Proposed patch:


Red Hat would like to thank Dan Rosenberg for reporting this issue.

Comment 3 Eugene Teo (Security Response) 2010-11-12 06:37:44 UTC

This issue did not affect the versions of Linux kernel as shipped with Red Hat
Enterprise Linux 4 and 5 as they did not backport the upstream commit c5dec1c3 that introduced the issue. This has been addressed in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0007.html and https://rhn.redhat.com/errata/RHSA-2011-0330.html.

Comment 5 Eugene Teo (Security Response) 2010-11-15 06:22:50 UTC
Upstream commit:

Comment 7 errata-xmlrpc 2011-01-11 19:45:46 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0007 https://rhn.redhat.com/errata/RHSA-2011-0007.html

Comment 8 errata-xmlrpc 2011-03-10 20:04:36 UTC
This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2011:0330 https://rhn.redhat.com/errata/RHSA-2011-0330.html

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