CVE-2006-5158

High

The nlmclnt_mark_reclaim in clntlock.c in NFS lockd in Linux kernel before 2.6.16 allows remote attackers to cause a denial of service (process crash) and deny access to NFS exports via unspecified vectors that trigger a kernel oops (null dereference) and a deadlock.

Package Linux Kernel
Published 2006-10-05
Last modified 2026-04-23
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

7.5

out of 10
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-667

CVE-2006-5158 is a Improper Locking vulnerability

What is Improper Locking?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2006-5158 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2006-5158?

    CVE-2006-5158 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as an Improper Locking flaw (CWE-667) . CVE-2006-5158 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2006-5158?

    CVE-2006-5158 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2006-5158?

    No patch is currently available for CVE-2006-5158. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2006-5158 actively exploited?

    No — CVE-2006-5158 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is Improper Locking (CWE-667)?

    The product does not properly acquire or release a lock, which can lead to unexpected behaviour. View CWE-667 on MITRE CWE →

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