CVE-2022-49968

Katalog CVE

CVSS 4.7 · Medium EPSS 0,25%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada linux kernel. Skor CVSS 3.1 4.7 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: ieee802154/adf7242: defer destroy_workqueue call There is a possible race condition (use-after-free) like below (FREE) | (USE) adf7242_remove | adf7242_channel cancel_delayed_work_sync | destroy_workqueue (1) | adf7242_cmd_rx | mod_delayed_work (2) | The root cause for this race is that the upper layer (ieee802154) is unaware of this detaching event and the function adf7242_channel can be called without any checks. To fix this, we can add a flag write at the beginning of adf7242_remove and add flag check in adf7242_channel. Or we can just defer the destructive operation like other commit 3e0588c291d6 ("hamradio: defer ax25 kfree after unregister_netdev") which let the ieee802154_unregister_hw() to handle the synchronization. This patch takes the second option. runs")

Rincian

Terbit di NVD

18 Juni 2025

Terakhir diubah

4 Agustus 2026

Status NVD

Modified

CVSS 3.1

4.7 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-416: Use After Free

EPSS (30 hari)

0,25% peluang dieksploitasi; lebih tinggi dari 15,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/15f3b89bd521d5770d36a61fc04a77c293138ba6 patch
• https://git.kernel.org/stable/c/23a29932715ca43bceb2eae1bdb770995afe7271 patch
• https://git.kernel.org/stable/c/9f8558c5c642c62c450c98c99b7d18a709fff485 patch
• https://git.kernel.org/stable/c/afe7116f6d3b888778ed6d95e3cf724767b9aedf patch
• https://git.kernel.org/stable/c/bed12d7531df1417fc92c691999ff95e03835008 patch
• https://git.kernel.org/stable/c/dede80aaf01f4b6e8657d23726cb4a3da226ec4c patch