Linux kernel 2.6.16-rc2 and earlier, when running on x86_64 systems with preemption enabled, allows local users to cause a denial of…

Description

Linux kernel 2.6.16-rc2 and earlier, when running on x86_64 systems with preemption enabled, allows local users to cause a denial of service (oops) via multiple ptrace tasks that perform single steps, which can cause corruption of the DEBUG_STACK stack during the do_debug function call.

Scores

EPSS (exploitation in 30 days)

0.35% · top 71% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.2.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (9)

• USN-281-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• MDKSA-2006:151 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• 21614 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 19955 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 17216 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 24098 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• DSA-1017 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 19374 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• [linux-kernel] 20060207 [PATCH] arch/x86_64/kernel/traps.c PTRACE_SINGLESTEP oops (opens in a new tab)mailing-listx_refsource_MLISTx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2006-1066](https://trackcve.app/badge/CVE-2006-1066.svg)](https://trackcve.app/cve/CVE-2006-1066)

Record last updated 7 Aug 2024, 16:56 UTC.