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CVE-2021-47310

kernel: net: ti: fix UAF in tlan_remove_one

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Severity

Moderate

Red Hat Product Security

4.4

CVSS 3.1

Review impact separately from score.

Published · May 21, 2024

Updated · June 28, 2026

Description

A vulnerability was found in the Linux kernel's TI TLAN driver, where the tlan_remove_one function can lead to a use-after-free issue when the driver attempts to access private data after the network device has already been freed, potentially causing system instability or crash.

Statement

This vulnerability is rated as a moderate because the use-after-free can disrupt network functionality, resulting in service interruptions, but it does not directly compromise sensitive information.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

CVSS / CWE

CVSS 3.1 · 4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-416 · Use After Free