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CVE-2010-4656

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37...

7.8 HighFix available

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.40%Down 0.7 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.8

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report.

Record
CVE-2010-4656
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report.

Record
CVE-2010-4656
Updated
2026-11-02
EUVDEUVD-2010-4621 No score

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report.

Record
EUVD-2010-4621
Updated
2026-11-03
GitHub AdvisoriesGHSA-5jgm-4h75-c4h8 7.8

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37...

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report.

Record
GHSA-5jgm-4h75-c4h8
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
OSVSUSE-SU-2015:0652-1 No score

Security update for Kernel

The SUSE Linux Enterprise 11 SP1 Teradata kernel was updated to fix bugs and security issues.

Following security issues were fixed:

CVE-2011-1083: Limit the path length users can build using epoll() to avoid local attackers consuming lots of kernel CPU time.

CVE-2011-4086: Fixed a oops in jbd/jbd2 that could be caused by specific filesystem access patterns.

CVE-2011-4622: KVM: Prevent starting PIT timers in the absence of irqchip support.

CVE-2012-0045: KVM: Extend 'struct x86_emulate_ops' with 'get_cpuid' and fix missing checks in syscall emulation.

CVE-2012-0879: Fix io_context leak after clone with CLONE_IO.

CVE-2012-1090: Fixed a dentry refcount leak in the CIFS file system that could lead to a crash on unmount.

CVE-2012-1097: The regset common infrastructure assumed that regsets would always have .get and .set methods, but necessarily .active methods. Unfortunately people have since written regsets without .set method, so NULL pointer dereference attacks were possible.

Following non-security issues were fixed:

* SCSI inquiry doesn't return data on SLES 11-SP1 Xen VMs (bnc#745929).
* FC transport driver killing off the timers/work queues (bnc#734300).
* The driver ixgbevf doesn't work on newer SLES 11-SP1 kernels
  (bnc#752972).
* Pack sparsemem memmap sections closer together and in higher zones
  (bnc#743870).

Following feature was implemented:

* The megaraid_sas driver update to version 5.40-LSI (bnc#736813).

Security Issues:

* CVE-2011-1083
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1083>
* CVE-2011-4086
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4086>
* CVE-2011-4622
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4622>
* CVE-2012-0045
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0045>
* CVE-2012-0879
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0879>
* CVE-2012-1090
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1090>
* CVE-2012-1097
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1097>
Record
SUSE-SU-2015:0652-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
linux-2.6
Debian:5.0
before 2.6.26-26lenny2, plus listed versions
2.6.26-132.6.26-13lenny22.6.26-13lenny2~bpo40+12.6.26-142.6.26-15
Show 33 moreShow less
2.6.26-15lenny12.6.26-15lenny22.6.26-15lenny32.6.26-15~bpo40+12.6.26-15~bpo40+22.6.26-162.6.26-172.6.26-17lenny12.6.26-17lenny22.6.26-17lenny2~bpo40+12.6.26-17~bpo40+12.6.26-182.6.26-192.6.26-19lenny12.6.26-19lenny22.6.26-19~bpo40+12.6.26-202.6.26-20~bpo40+12.6.26-212.6.26-21lenny12.6.26-21lenny22.6.26-21lenny32.6.26-21lenny42.6.26-21~bpo40+12.6.26-222.6.26-22lenny12.6.26-232.6.26-242.6.26-24lenny12.6.26-252.6.26-25lenny12.6.26-262.6.26-26lenny1
2.6.26-26lenny2
user-mode-linux
Debian:5.0
before 2.6.26-1um-2+26lenny2, plus listed versions
2.6.26-1um-22.6.26-1um-2+152.6.26-1um-2+15lenny22.6.26-1um-2+15lenny32.6.26-1um-2+16
Show 13 moreShow less
2.6.26-1um-2+17lenny12.6.26-1um-2+17lenny22.6.26-1um-2+192.6.26-1um-2+19lenny12.6.26-1um-2+212.6.26-1um-2+21lenny32.6.26-1um-2+21lenny42.6.26-1um-2+22lenny12.6.26-1um-2+242.6.26-1um-2+24lenny12.6.26-1um-2+25lenny12.6.26-1um-2+262.6.26-1um-2+26lenny1
2.6.26-1um-2+26lenny2
kernel-rt
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-debug
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-debug-debuginfo
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-debug-devel
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-debuginfo
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-debuginfo-common
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-devel
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-doc
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
Show 57 moreShow less
Affected packages
PackageAffectedFixed
kernel-rt-trace
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-trace-debuginfo
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-trace-devel
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-vanilla
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-vanilla-debuginfo
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel-rt-vanilla-devel
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
perf
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
perf-debuginfo
Red Hat:enterprise_mrg:1::el5
before 0:2.6.33.7-rt29.55.el5rt
0:2.6.33.7-rt29.55.el5rt
kernel
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo-common-i686
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-devel
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-doc
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
perf
Red Hat:enterprise_linux:6::client
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-devel
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-doc
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
perf
Red Hat:enterprise_linux:6::computenode
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-bootwrapper
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo-common-i686
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo-common-ppc64
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo-common-s390x
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-devel
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-doc
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-kdump
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-kdump-debuginfo
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-kdump-devel
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
perf
Red Hat:enterprise_linux:6::server
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo-common-i686
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-devel
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-doc
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6
perf
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-71.24.1.el6
0:2.6.32-71.24.1.el6

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2010-4656 is a high vulnerability (CVSS 7.8) in Linux Kernel, published January 30, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 33rd percentile. Fixed in linux-2.6 2.6.26-26lenny2.

References

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