Description

Off-by-one error in the iov_iter_advance function in mm/filemap.c in the Linux kernel before 2.6.27-rc2 allows local users to cause a denial of service (system crash) via a certain sequence of file I/O operations with readv and writev, as demonstrated by testcases/kernel/fs/ftest/ftest03 from the Linux Test Project.

References

http://mirror.celinuxforum.org/gitstat/commit-detail.php?commit=94ad374a0751f40d25e22e036c37f7263569d24c

http://secunia.com/advisories/31881

http://secunia.com/advisories/32190

http://secunia.com/advisories/32393

http://www.debian.org/security/2008/dsa-1636

http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.27-rc2

http://www.lkml.org/lkml/2008/7/30/446

http://www.redhat.com/support/errata/RHSA-2008-0857.html

http://www.securityfocus.com/bid/31132

http://www.ubuntu.com/usn/usn-659-1

https://exchange.xforce.ibmcloud.com/vulnerabilities/44492

Details

Risk Information

CVSS v2