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CVE-2006-6056

Linux kernel 2.6.x up to 2.6.18 and possibly other versions, when SELinux hooks are enabled,...

4.9 Medium

Linux kernel 2.6.x up to 2.6.18 and possibly other versions, when SELinux hooks are enabled, allows local users to cause a denial of service (crash) via a malformed file stream that triggers a NULL pointer dereference in the superblock_doinit function, as demonstrated using an HFS filesystem image.

Exploit likelihood

0.56%Down 1.0 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 4.9

Linux kernel 2.6.x up to 2.6.18 and possibly other versions, when SELinux hooks are enabled, allows local users to cause a denial of service (crash) via a malformed file stream that triggers a NULL pointer dereference in the superblock_doinit function, as demonstrated using an HFS filesystem image.

Record
CVE-2006-6056
CVSS 2.0
4.9 MediumAV:L/AC:L/Au:N/C:N/I:N/A:C
Updated
2026-11-02
CVE List No score

Linux kernel 2.6.x up to 2.6.18 and possibly other versions, when SELinux hooks are enabled, allows local users to cause a denial of service (crash) via a malformed file stream that triggers a NULL pointer dereference in the superblock_doinit function, as demonstrated using an HFS filesystem image.

Record
CVE-2006-6056
Updated
2026-11-02
EUVDEUVD-2006-6039 No score

Linux kernel 2.6.x up to 2.6.18 and possibly other versions, when SELinux hooks are enabled, allows local users to cause a denial of service (crash) via a malformed file stream that triggers a NULL pointer dereference in the superblock_doinit function, as demonstrated using an HFS filesystem image.

Record
EUVD-2006-6039
Updated
2026-11-03
GitHub AdvisoriesGHSA-qgv2-2pw8-fjr2 No score

Linux kernel 2.6.x up to 2.6.18 and possibly other versions, when SELinux hooks are enabled,...

Linux kernel 2.6.x up to 2.6.18 and possibly other versions, when SELinux hooks are enabled, allows local users to cause a denial of service (crash) via a malformed file stream that triggers a NULL pointer dereference in the superblock_doinit function, as demonstrated using an HFS filesystem image.

Record
GHSA-qgv2-2pw8-fjr2
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kernel-source-2.6.8
Debian:3.1
From an advisory covering 14 CVEs
 before 2.6.8-16sarge7, plus listed versions
2.6.8-162.6.8-16sarge12.6.8-16sarge22.6.8-16sarge32.6.8-16sarge42.6.8-16sarge52.6.8-16sarge6
2.6.8-16sarge7
kernel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-doc
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-hugemem
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-largesmp
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-smp
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
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Affected packages
PackageAffectedFixed
kernel-smp-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-doc
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-hugemem
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-largesmp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-smp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-doc
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-hugemem
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-largesmp
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-smp
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-doc
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-hugemem
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-largesmp
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-smp
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 15 CVEs
 before 0:2.6.9-42.0.8.EL
0:2.6.9-42.0.8.EL

History

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

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

In short

CVE-2006-6056 is a medium vulnerability (CVSS 4.9) in Linux Kernel, published November 22, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 46th percentile. No source names a fixed version.

References

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