|Bugzilla:||652957: CVE-2010-4163 CVE-2010-4668 kernel: panic when submitting certain 0-length I/O requests|
The MITRE CVE dictionary describes this issue as:
The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 2.6.37-rc7 allows local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device, related to an unaligned map. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4163.
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.
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Red Hat security errata
|MRG Grid for RHEL 5 Server (kernel-rt)||RHSA-2011:0330||March 10, 2011|
|Red Hat Enterprise Linux version 6 (kernel)||RHSA-2011:0007||January 11, 2011|
Red Hat would like to thank Dan Rosenberg for reporting this issue.
This page is generated automatically and has not been checked for errors or omissions.
For clarification or corrections please contact the Red Hat Security Response Team.