CVE Database›Document archive›CVE-2026-72489

CVE-2026-72489

kernel: staging: nvec: fix use-after-free in nvec_rx_completed()

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · August 15, 2026

Updated · October 30, 2026

Description

A flaw was found in the Linux kernel's nvec driver. An incomplete receive (RX) transfer in the nvec_rx_completed() function can lead to a use-after-free vulnerability. This occurs because memory is freed and then immediately accessed, allowing a concurrent memory allocation to overwrite the freed data. An attacker could potentially exploit this to cause memory corruption, leading to a denial of service or possibly privilege escalation.

Statement

This vulnerability is evaluated as Moderate severity rather than Important because exploitation is strictly limited to local interfaces on specialized Tegra embedded controller hardware, preventing remote reachability. Red Hat Enterprise Linux kernels do not enable or include this staging driver in supported configurations, leaving standard installations unaffected. Consequently, typical enterprise environments face no operational risk from this flaw.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference