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CVE-2006-2446

Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in...

5.4 Medium

CVE-2006-2446 is a medium vulnerability (CVSS 5.4) in Linux Kernel, published August 15, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.44%, the 89th percentile. No source names a fixed version.

Severity
5.4 MediumCVSS 2.0, NVD
Exploit chance
3.44%EPSS, 89th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other versions, allows remote attackers to cause a denial of service (crash), as demonstrated using the TCP stress tests from the LTP test suite.

Exploit likelihood

3.44%Up 1.5 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kernel-source-2.4.27
Debian:3.1
From an advisory covering 7 CVEs
before 2.4.27-10sarge4, plus listed versions
2.4.27-102.4.27-10sarge12.4.27-10sarge22.4.27-10sarge3
2.4.27-10sarge4
fai-kernels
Debian:3.1
From an advisory covering 7 CVEs
before 1.9.1sarge4, plus listed versions
1.9.11.9.1sarge11.9.1sarge21.9.1sarge3
1.9.1sarge4
systemimager
Debian:3.1
From an advisory covering 7 CVEs
before 3.2.3-6sarge3, plus listed versions
3.2.3-63.2.3-6sarge13.2.3-6sarge2
3.2.3-6sarge3
kernel-source-2.6.8
Debian:3.1
From an advisory covering 16 CVEs
before 2.6.8-16sarge5, plus listed versions
2.6.8-162.6.8-16sarge12.6.8-16sarge22.6.8-16sarge32.6.8-16sarge4
2.6.8-16sarge5
fai-kernels
Debian:3.1
From an advisory covering 16 CVEs
before 1.9.1sarge4, plus listed versions
1.9.11.9.1sarge11.9.1sarge21.9.1sarge3
1.9.1sarge4
kernel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-doc
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-hugemem
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
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Affected packages
PackageAffectedFixed
kernel-hugemem-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-largesmp
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-smp
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-doc
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-hugemem
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-largesmp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-smp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-doc
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-hugemem
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-largesmp
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-smp
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-doc
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-hugemem
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-largesmp
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-smp
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
before 0:2.6.9-42.EL
0:2.6.9-42.EL

What each source reports

NVD Score used5.4

Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other versions, allows remote attackers to cause a denial of service (crash), as demonstrated using the TCP stress tests from the LTP test suite.

Record
CVE-2006-2446
CVSS 2.0
5.4 MediumAV:N/AC:H/Au:N/C:N/I:N/A:C
Updated
2026-11-02
CVE ListNo score

Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other versions, allows remote attackers to cause a denial of service (crash), as demonstrated using the TCP stress tests from the LTP test suite.

Record
CVE-2006-2446
Updated
2026-11-02
EUVDEUVD-2006-2447No score

Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other versions, allows remote attackers to cause a denial of service (crash), as demonstrated using the TCP stress tests from the LTP test suite.

Record
EUVD-2006-2447
Updated
2026-11-03
GitHub AdvisoriesGHSA-9rjv-c6fw-mm24No score

Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in...

Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other versions, allows remote attackers to cause a denial of service (crash), as demonstrated using the TCP stress tests from the LTP test suite.

Record
GHSA-9rjv-c6fw-mm24
Updated
2026-11-02

History

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

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

References

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Left out here: 23 references. The JSON record has them.

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