CVEvulnerability

CVE-2021-47201

5.5 MEDIUM Published 2024-04-10 Modified 2026-08-04 Official page ↗
Status
Modified
Published
2024-04-10
Last modified
2026-08-04
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: iavf: free q_vectors before queues in iavf_disable_vf iavf_free_queues() clears adapter->num_active_queues, which iavf_free_q_vectors() relies on, so swap the order of these two function calls in iavf_disable_vf(). This resolves a panic encountered when the interface is disabled and then later brought up again after PF communication is restored.

Affected configurations

• linux linux kernel (>= 4.13 < 5.4.162) • linux linux kernel (>= 5.5 < 5.10.82) • linux linux kernel (>= 5.11 < 5.15.5) • linux linux kernel 5.16

References