CVE-2021-47538 - CVE House
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Status published Medium CVE-2021-47538

rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer() Need to call rxrpc_put_local() for peer candidate before kfree() as it holds a ref to rxrpc_local. [DH: v2: Changed to abstract the peer freeing code out into a function]

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
e8e51ce79c157188e209e5ea0afaf6b42dd76104, 9ebeddef58c41bd700419cdcece24cf64ce32276, 9b7fc03b4cdbfb668b6891967105258691c6d3b5, 4.19.82, 5.3.9, 5.4, 0, 4.19.220, 5.4.164, 5.10.84, 5.15.7, 5.16

Timeline

Official Publish: May 24th, 2024
Last Modified: May 23rd, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.