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kernel: ptrace: Crash on PTRACE_{ATTACH,DETACH} race

Published Jun 30, 2008

Description

Race condition in the ptrace and utrace support in the Linux kernel 2.6.9 through 2.6.25, as used in Red Hat Enterprise Linux (RHEL) 4, allows local users to cause a denial of service (oops) via a long series of PTRACE_ATTACH ptrace calls to another user's process that trigger a conflict between utrace_detach and report_quiescent, related to "late ptrace_may_attach() check" and "race around &dead_engine_ops setting," a different vulnerability than CVE-2007-0771 and CVE-2008-1514. NOTE: this issue might only affect kernel versions before 2.6.16.x.

Affected products

Remediation

No remediation recorded yet.

Metrics

Weaknesses (1)

References (20)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jun 30, 2008
Updated Aug 7, 2024
Reserved May 21, 2008
NVD
Status Modified
Modified Jun 16, 2026
Red Hat
Severity Important
Public date Apr 2, 2008