CVE Database›Document archive›CVE-2022-48872

CVE-2022-48872

kernel: misc: fastrpc: Fix use-after-free race condition for maps

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · August 21, 2024

Updated · August 5, 2026

Description

A vulnerability was found in the Linux kernel's fastrpc.c driver caused by a race condition created when calling the function fastrpc_map_get() until map->fl->lock is taken in the fastrpc_free_map() function. During this call another thread could call the function fastrpc_map_lookup() and receive a reference to a map that is about to be deleted. This could lead to a use-after-free condition, potentially leading to memory corruption or system instability.

Statement

Red Hat Enterprise Linux is not impacted by this CVE, as the vulnerability in question does not affect the specific versions or configurations of the Linux kernel used in its distributions. This ensures that users of Red Hat Enterprise Linux are not exposed to the potential risks associated with this issue, and no further action or mitigation is necessary for systems running this operating system.

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

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free