CVE-2020-14381

kernel: referencing inode of removed superblock in get_futex_key() causes UAF

Published Dec 3, 2020 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
A flaw was found in the Linux kernel’s futex implementation. This flaw allows a local attacker to corrupt system memory or escalate their privileges when creating a futex on a filesystem that is about to be unmounted. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2020-6521 A flaw was found in the Linux kernel’s futex implementation. This flaw allows a local attacker to corrupt system memory or escalate their privileges when creating a futex on a filesystem that is about to be unmounted. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Feb 25, 2026, 4:48 PM
Reserved
Jun 17, 2020, 12:00 AM
Status
Modified
Published
Dec 3, 2020, 5:15 PM
Modified
Jun 17, 2026, 2:54 AM
Severity
Moderate
Public date
May 7, 2020, 7:00 PM