CVE-2021-47123 - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix ltout double free on completion race Always remove linked timeout on io_link_timeout_fn() from the master request link list, otherwise we may get use-after-free when first io_link_timeout_fn() puts linked timeout in the fail path, and then will be found and put on master's free.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/1f64f5e903b9d1d157875721e02adadc9d6f0a5d
https://git.kernel.org/stable/c/447c19f3b5074409c794b350b10306e1da1ef4ba
https://lore.kernel.org/linux-cve-announce/2024031511-CVE-2021-47123-8318@gregkh/T/#u
https://nvd.nist.gov/vuln/detail/CVE-2021-47123
https://www.cve.org/CVERecord?id=CVE-2021-47123

History

Tue, 05 Nov 2024 08:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 11 Sep 2024 18:30:00 +0000

Type	Values Removed	Values Added
Metrics	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 11 Sep 2024 13:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-03-15T20:14:28.888Z

Updated: 2024-11-04T11:59:51.702Z

Reserved: 2024-03-04T18:12:48.839Z

Link: CVE-2021-47123

Vulnrichment

Updated: 2024-08-04T05:24:39.841Z

NVD

Status : Awaiting Analysis

Published: 2024-03-15T21:15:07.217

Modified: 2024-03-17T22:38:29.433

Link: CVE-2021-47123

Redhat

Severity : Moderate

Publid Date: 2024-03-15T00:00:00Z

Links: CVE-2021-47123 - Bugzilla

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