CVE-2008-3535

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2008-08-08 · updated 2026-06-16
Weakness: CWE-193

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.

Affected products

Canonical Ubuntu Linux: 6.06, 7.10, 8.04
Debian Linux: 4.0
Linux kernel: before 2.6.27; 2.6.27, 2.6.27-rc1 — fixed in 2.6.27

How to fix

Upgrade to a fixed version: Linux kernel 2.6.27. Check the vendor advisory for mitigations.

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

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