Vulnerability-Lookup

BDU:2026-02181 (CVE-2022-50408)

Vulnerability from fstec – Published: 2026-02-25 – Updated: 2026-02-25 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции brcmf_netdev_start_xmit() в модуле drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c драйвера адаптеров беспроводной связи Broadcom ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Summary

Уязвимость функции brcmf_netdev_start_xmit() в модуле drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c драйвера адаптеров беспроводной связи Broadcom ядра операционной системы Linux связана с повторным использованием ранее освобожденной памяти. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Severity

6.8 (Medium) CVSS 2.0


                      
                        AV:L/AC:L/Au:S/C:C/I:C/A:C

7.8 (High) CVSS 3.1


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-416 - Использование после освобождения

Aliases

CVE-2022-50408

References

19 references

URL
https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e
https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02
https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96
https://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560
https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2
https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df
https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed
https://www.cve.org/CVERecord?id=CVE-2022-50408
https://git.kernel.org/linus/3f42faf6db431e04bf942d2ebe3ae88975723478
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.296
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.262
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.220
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3
https://access.redhat.com/security/cve/cve-2022-50408
https://security-tracker.debian.org/tracker/CVE-2022-50408
https://ubuntu.com/security/CVE-2022-50408

Impacted products

4 products from 4 vendors

Vendors

Canonical Ltd., Red Hat, Inc., Сообщество свободного программного обеспечения

Products

Ubuntu, Red Hat Enterprise Linux, Debian GNU/Linux, Linux

Versions

16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), 8 (Red Hat Enterprise Linux), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), 8.2 Advanced Update Support (Red Hat Enterprise Linux), от 5.16 до 5.19.16 включительно (Linux), от 4.15 до 4.19.261 включительно (Linux), от 4.20 до 5.4.219 включительно (Linux), от 5.5 до 5.10.149 включительно (Linux), от 5.11 до 5.15.74 включительно (Linux), 8.4 Advanced Mission Critical Update Support (Red Hat Enterprise Linux), 9.0 Update Services for SAP Solutions (Red Hat Enterprise Linux), 8.6 Update Services for SAP Solutions (Red Hat Enterprise Linux), 8.6 Telecommunications Update Service (Red Hat Enterprise Linux), 8.6 Advanced Mission Critical Update Support (Red Hat Enterprise Linux), 7 Extended Lifecycle Support (Red Hat Enterprise Linux), от 6.0 до 6.0.2 включительно (Linux), 13 (Debian GNU/Linux), 8.4 Extended Update Support Long-Life Add-On (Red Hat Enterprise Linux), от 3.9 до 4.14.295 включительно (Linux)

Product types

Operating system

Platforms

Canonical Ltd. Ubuntu 16.04 LTS, Canonical Ltd. Ubuntu 18.04 LTS, Red Hat, Inc. Red Hat Enterprise Linux 8, Canonical Ltd. Ubuntu 20.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Сообщество свободного программного обеспечения Debian GNU/Linux 12, Canonical Ltd. Ubuntu 22.04 LTS, Inc. Red Hat Enterprise Linux 9, Inc. Red Hat Enterprise Linux 8.2 Advanced Update Support, Сообщество свободного программного обеспечения Linux от 5.16 до 5.19.16 включительно, Сообщество свободного программного обеспечения Linux от 4.15 до 4.19.261 включительно, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.219 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.149 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.74 включительно, Inc. Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Inc. Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Inc. Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Inc. Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Inc. Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Inc. Red Hat Enterprise Linux 7 Extended Lifecycle Support, Сообщество свободного программного обеспечения Linux от 6.0 до 6.0.2 включительно, Сообщество свободного программного обеспечения Debian GNU/Linux 13, Inc. Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Сообщество свободного программного обеспечения Linux от 3.9 до 4.14.295 включительно

Mitigations

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:C/I:C/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Canonical Ltd., Red Hat, Inc., \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), 8 (Red Hat Enterprise Linux), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), 8.2 Advanced Update Support (Red Hat Enterprise Linux), \u043e\u0442 5.16 \u0434\u043e 5.19.16 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.261 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.219 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.149 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.74 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), 8.4 Advanced Mission Critical Update Support (Red Hat Enterprise Linux), 9.0 Update Services for SAP Solutions (Red Hat Enterprise Linux), 8.6 Update Services for SAP Solutions (Red Hat Enterprise Linux), 8.6 Telecommunications Update Service (Red Hat Enterprise Linux), 8.6 Advanced Mission Critical Update Support (Red Hat Enterprise Linux), 7 Extended Lifecycle Support (Red Hat Enterprise Linux), \u043e\u0442 6.0 \u0434\u043e 6.0.2 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), 13 (Debian GNU/Linux), 8.4 Extended Update Support Long-Life Add-On (Red Hat Enterprise Linux), \u043e\u0442 3.9 \u0434\u043e 4.14.295 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0412 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u044f \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043e\u0442 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u0442\u0441\u044f \u043f\u0440\u0438\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c\u0441\u044f \"\u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u043e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0439 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c LINUX\", \u0438\u0437\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0445 \u0432 \u043c\u0435\u0442\u043e\u0434\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0435 \u0424\u0421\u0422\u042d\u041a \u0420\u043e\u0441\u0441\u0438\u0438, \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0451\u043d\u043d\u043e\u043c 25 \u0434\u0435\u043a\u0430\u0431\u0440\u044f 2022 \u0433\u043e\u0434\u0430.\n\n\n\n\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\n\n\u0414\u043b\u044f Linux:\nhttps://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e\nhttps://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02\nhttps://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96\nhttps://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560\nhttps://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2\nhttps://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df\nhttps://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed\nhttps://git.kernel.org/linus/3f42faf6db431e04bf942d2ebe3ae88975723478\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat Inc.:\nhttps://access.redhat.com/security/cve/cve-2022-50408\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2022-50408\n\n\u0414\u043b\u044f Ubuntu:\nhttps://ubuntu.com/security/CVE-2022-50408",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "07.09.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "25.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "25.02.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-02181",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2022-50408",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Ubuntu, Red Hat Enterprise Linux, Debian GNU/Linux, Linux",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Canonical Ltd. Ubuntu 16.04 LTS , Canonical Ltd. Ubuntu 18.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 8 , Canonical Ltd. Ubuntu 20.04 LTS , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 11 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 12 , Canonical Ltd. Ubuntu 22.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 9 , Red Hat, Inc. Red Hat Enterprise Linux 8.2 Advanced Update Support , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.16 \u0434\u043e 5.19.16 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 4.15 \u0434\u043e 4.19.261 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 4.20 \u0434\u043e 5.4.219 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.5 \u0434\u043e 5.10.149 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.11 \u0434\u043e 5.15.74 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , Red Hat, Inc. Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support , Red Hat, Inc. Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions , Red Hat, Inc. Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions , Red Hat, Inc. Red Hat Enterprise Linux 8.6 Telecommunications Update Service , Red Hat, Inc. Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support , Red Hat, Inc. Red Hat Enterprise Linux 7 Extended Lifecycle Support , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 6.0 \u0434\u043e 6.0.2 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 13 , Red Hat, Inc. Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 3.9 \u0434\u043e 4.14.295 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 brcmf_netdev_start_xmit() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0430\u0434\u0430\u043f\u0442\u0435\u0440\u043e\u0432 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439 \u0441\u0432\u044f\u0437\u0438 Broadcom \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f (CWE-416)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 brcmf_netdev_start_xmit() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0430\u0434\u0430\u043f\u0442\u0435\u0440\u043e\u0432 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439 \u0441\u0432\u044f\u0437\u0438 Broadcom \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u044b\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0440\u0430\u043d\u0435\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e\nhttps://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02\nhttps://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96\nhttps://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560\nhttps://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2\nhttps://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df\nhttps://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed\nhttps://www.cve.org/CVERecord?id=CVE-2022-50408\nhttps://git.kernel.org/linus/3f42faf6db431e04bf942d2ebe3ae88975723478\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.296\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.262\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.220\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3\nhttps://access.redhat.com/security/cve/cve-2022-50408\nhttps://security-tracker.debian.org/tracker/CVE-2022-50408\nhttps://ubuntu.com/security/CVE-2022-50408",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-416",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 6,8)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)"
}

CVE-2022-50408 (GCVE-0-2022-50408)

Vulnerability from cvelistv5 – Published: 2025-09-18 16:03 – Updated: 2026-08-05 08:58

Title

wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() > ret = brcmf_proto_tx_queue_data(drvr, ifp->ifidx, skb); may be schedule, and then complete before the line > ndev->stats.tx_bytes += skb->len; [ 46.912801] ================================================================== [ 46.920552] BUG: KASAN: use-after-free in brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac] [ 46.928673] Read of size 4 at addr ffffff803f5882e8 by task systemd-resolve/328 [ 46.935991] [ 46.937514] CPU: 1 PID: 328 Comm: systemd-resolve Tainted: G O 5.4.199-[REDACTED] #1 [ 46.947255] Hardware name: [REDACTED] [ 46.954568] Call trace: [ 46.957037] dump_backtrace+0x0/0x2b8 [ 46.960719] show_stack+0x24/0x30 [ 46.964052] dump_stack+0x128/0x194 [ 46.967557] print_address_description.isra.0+0x64/0x380 [ 46.972877] __kasan_report+0x1d4/0x240 [ 46.976723] kasan_report+0xc/0x18 [ 46.980138] __asan_report_load4_noabort+0x18/0x20 [ 46.985027] brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac] [ 46.990613] dev_hard_start_xmit+0x1bc/0xda0 [ 46.994894] sch_direct_xmit+0x198/0xd08 [ 46.998827] __qdisc_run+0x37c/0x1dc0 [ 47.002500] __dev_queue_xmit+0x1528/0x21f8 [ 47.006692] dev_queue_xmit+0x24/0x30 [ 47.010366] neigh_resolve_output+0x37c/0x678 [ 47.014734] ip_finish_output2+0x598/0x2458 [ 47.018927] __ip_finish_output+0x300/0x730 [ 47.023118] ip_output+0x2e0/0x430 [ 47.026530] ip_local_out+0x90/0x140 [ 47.030117] igmpv3_sendpack+0x14c/0x228 [ 47.034049] igmpv3_send_cr+0x384/0x6b8 [ 47.037895] igmp_ifc_timer_expire+0x4c/0x118 [ 47.042262] call_timer_fn+0x1cc/0xbe8 [ 47.046021] __run_timers+0x4d8/0xb28 [ 47.049693] run_timer_softirq+0x24/0x40 [ 47.053626] __do_softirq+0x2c0/0x117c [ 47.057387] irq_exit+0x2dc/0x388 [ 47.060715] __handle_domain_irq+0xb4/0x158 [ 47.064908] gic_handle_irq+0x58/0xb0 [ 47.068581] el0_irq_naked+0x50/0x5c [ 47.072162] [ 47.073665] Allocated by task 328: [ 47.077083] save_stack+0x24/0xb0 [ 47.080410] __kasan_kmalloc.isra.0+0xc0/0xe0 [ 47.084776] kasan_slab_alloc+0x14/0x20 [ 47.088622] kmem_cache_alloc+0x15c/0x468 [ 47.092643] __alloc_skb+0xa4/0x498 [ 47.096142] igmpv3_newpack+0x158/0xd78 [ 47.099987] add_grhead+0x210/0x288 [ 47.103485] add_grec+0x6b0/0xb70 [ 47.106811] igmpv3_send_cr+0x2e0/0x6b8 [ 47.110657] igmp_ifc_timer_expire+0x4c/0x118 [ 47.115027] call_timer_fn+0x1cc/0xbe8 [ 47.118785] __run_timers+0x4d8/0xb28 [ 47.122457] run_timer_softirq+0x24/0x40 [ 47.126389] __do_softirq+0x2c0/0x117c [ 47.130142] [ 47.131643] Freed by task 180: [ 47.134712] save_stack+0x24/0xb0 [ 47.138041] __kasan_slab_free+0x108/0x180 [ 47.142146] kasan_slab_free+0x10/0x18 [ 47.145904] slab_free_freelist_hook+0xa4/0x1b0 [ 47.150444] kmem_cache_free+0x8c/0x528 [ 47.154292] kfree_skbmem+0x94/0x108 [ 47.157880] consume_skb+0x10c/0x5a8 [ 47.161466] __dev_kfree_skb_any+0x88/0xa0 [ 47.165598] brcmu_pkt_buf_free_skb+0x44/0x68 [brcmutil] [ 47.171023] brcmf_txfinalize+0xec/0x190 [brcmfmac] [ 47.176016] brcmf_proto_bcdc_txcomplete+0x1c0/0x210 [brcmfmac] [ 47.182056] brcmf_sdio_sendfromq+0x8dc/0x1e80 [brcmfmac] [ 47.187568] brcmf_sdio_dpc+0xb48/0x2108 [brcmfmac] [ 47.192529] brcmf_sdio_dataworker+0xc8/0x238 [brcmfmac] [ 47.197859] process_one_work+0x7fc/0x1a80 [ 47.201965] worker_thread+0x31c/0xc40 [ 47.205726] kthread+0x2d8/0x370 [ 47.208967] ret_from_fork+0x10/0x18 [ 47.212546] [ 47.214051] The buggy address belongs to the object at ffffff803f588280 [ 47.214051] which belongs to the cache skbuff_head_cache of size 208 [ 47.227086] The buggy address is located 104 bytes inside of [ 47.227086] 208-byte region [ffffff803f588280, ffffff803f588350) [ 47.238814] The buggy address belongs to the page: [ 47.243618] page:ffffffff00dd6200 refcount:1 mapcou ---truncated---

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-14 19:08 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/1613a7b24f1a7467c…
https://git.kernel.org/stable/c/d79f4d903e14dde82…
https://git.kernel.org/stable/c/49c742afd60f552fc…
https://git.kernel.org/stable/c/e01d96494a9de0f48…
https://git.kernel.org/stable/c/232d59eca07f6ea27…
https://git.kernel.org/stable/c/27574a3f421c3a169…
https://git.kernel.org/stable/c/c369836cff98d3877…
https://git.kernel.org/stable/c/3f42faf6db431e04b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 , < 1613a7b24f1a7467cb727ba3ec77c9a808383560 (git) Affected: b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 , < d79f4d903e14dde822c60b5fd3bedc5a289d25df (git) Affected: b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 , < 49c742afd60f552fce7799287080db02bffe1db2 (git) Affected: b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 , < e01d96494a9de0f48b1167f0494f6d929fa773ed (git) Affected: b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 , < 232d59eca07f6ea27307022a33d226aff373bd02 (git) Affected: b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 , < 27574a3f421c3a1694d0207f37c6bbf23d66978e (git) Affected: b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 , < c369836cff98d3877f98c98e15c0151462812d96 (git) Affected: b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 , < 3f42faf6db431e04bf942d2ebe3ae88975723478 (git)
Linux	Linux	Affected: 3.9 Unaffected: 0 , < 3.9 (semver) Unaffected: 4.14.296 , ≤ 4.14.* (semver) Unaffected: 4.19.262 , ≤ 4.19.* (semver) Unaffected: 5.4.220 , ≤ 5.4.* (semver) Unaffected: 5.10.150 , ≤ 5.10.* (semver) Unaffected: 5.15.75 , ≤ 5.15.* (semver) Unaffected: 5.19.17 , ≤ 5.19.* (semver) Unaffected: 6.0.3 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-50408",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
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                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T19:08:23.930157Z",
                "version": "2.0.3"
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              "type": "ssvc"
            }
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        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T19:13:08.728Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1613a7b24f1a7467cb727ba3ec77c9a808383560",
              "status": "affected",
              "version": "b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4",
              "versionType": "git"
            },
            {
              "lessThan": "d79f4d903e14dde822c60b5fd3bedc5a289d25df",
              "status": "affected",
              "version": "b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4",
              "versionType": "git"
            },
            {
              "lessThan": "49c742afd60f552fce7799287080db02bffe1db2",
              "status": "affected",
              "version": "b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4",
              "versionType": "git"
            },
            {
              "lessThan": "e01d96494a9de0f48b1167f0494f6d929fa773ed",
              "status": "affected",
              "version": "b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4",
              "versionType": "git"
            },
            {
              "lessThan": "232d59eca07f6ea27307022a33d226aff373bd02",
              "status": "affected",
              "version": "b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4",
              "versionType": "git"
            },
            {
              "lessThan": "27574a3f421c3a1694d0207f37c6bbf23d66978e",
              "status": "affected",
              "version": "b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4",
              "versionType": "git"
            },
            {
              "lessThan": "c369836cff98d3877f98c98e15c0151462812d96",
              "status": "affected",
              "version": "b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4",
              "versionType": "git"
            },
            {
              "lessThan": "3f42faf6db431e04bf942d2ebe3ae88975723478",
              "status": "affected",
              "version": "b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.9"
            },
            {
              "lessThan": "3.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.296",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.262",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.220",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.150",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.296",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.262",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.220",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.150",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.75",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()\n\n\u003e ret = brcmf_proto_tx_queue_data(drvr, ifp-\u003eifidx, skb);\n\nmay be schedule, and then complete before the line\n\n\u003e ndev-\u003estats.tx_bytes += skb-\u003elen;\n\n[   46.912801] ==================================================================\n[   46.920552] BUG: KASAN: use-after-free in brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]\n[   46.928673] Read of size 4 at addr ffffff803f5882e8 by task systemd-resolve/328\n[   46.935991]\n[   46.937514] CPU: 1 PID: 328 Comm: systemd-resolve Tainted: G           O      5.4.199-[REDACTED] #1\n[   46.947255] Hardware name: [REDACTED]\n[   46.954568] Call trace:\n[   46.957037]  dump_backtrace+0x0/0x2b8\n[   46.960719]  show_stack+0x24/0x30\n[   46.964052]  dump_stack+0x128/0x194\n[   46.967557]  print_address_description.isra.0+0x64/0x380\n[   46.972877]  __kasan_report+0x1d4/0x240\n[   46.976723]  kasan_report+0xc/0x18\n[   46.980138]  __asan_report_load4_noabort+0x18/0x20\n[   46.985027]  brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]\n[   46.990613]  dev_hard_start_xmit+0x1bc/0xda0\n[   46.994894]  sch_direct_xmit+0x198/0xd08\n[   46.998827]  __qdisc_run+0x37c/0x1dc0\n[   47.002500]  __dev_queue_xmit+0x1528/0x21f8\n[   47.006692]  dev_queue_xmit+0x24/0x30\n[   47.010366]  neigh_resolve_output+0x37c/0x678\n[   47.014734]  ip_finish_output2+0x598/0x2458\n[   47.018927]  __ip_finish_output+0x300/0x730\n[   47.023118]  ip_output+0x2e0/0x430\n[   47.026530]  ip_local_out+0x90/0x140\n[   47.030117]  igmpv3_sendpack+0x14c/0x228\n[   47.034049]  igmpv3_send_cr+0x384/0x6b8\n[   47.037895]  igmp_ifc_timer_expire+0x4c/0x118\n[   47.042262]  call_timer_fn+0x1cc/0xbe8\n[   47.046021]  __run_timers+0x4d8/0xb28\n[   47.049693]  run_timer_softirq+0x24/0x40\n[   47.053626]  __do_softirq+0x2c0/0x117c\n[   47.057387]  irq_exit+0x2dc/0x388\n[   47.060715]  __handle_domain_irq+0xb4/0x158\n[   47.064908]  gic_handle_irq+0x58/0xb0\n[   47.068581]  el0_irq_naked+0x50/0x5c\n[   47.072162]\n[   47.073665] Allocated by task 328:\n[   47.077083]  save_stack+0x24/0xb0\n[   47.080410]  __kasan_kmalloc.isra.0+0xc0/0xe0\n[   47.084776]  kasan_slab_alloc+0x14/0x20\n[   47.088622]  kmem_cache_alloc+0x15c/0x468\n[   47.092643]  __alloc_skb+0xa4/0x498\n[   47.096142]  igmpv3_newpack+0x158/0xd78\n[   47.099987]  add_grhead+0x210/0x288\n[   47.103485]  add_grec+0x6b0/0xb70\n[   47.106811]  igmpv3_send_cr+0x2e0/0x6b8\n[   47.110657]  igmp_ifc_timer_expire+0x4c/0x118\n[   47.115027]  call_timer_fn+0x1cc/0xbe8\n[   47.118785]  __run_timers+0x4d8/0xb28\n[   47.122457]  run_timer_softirq+0x24/0x40\n[   47.126389]  __do_softirq+0x2c0/0x117c\n[   47.130142]\n[   47.131643] Freed by task 180:\n[   47.134712]  save_stack+0x24/0xb0\n[   47.138041]  __kasan_slab_free+0x108/0x180\n[   47.142146]  kasan_slab_free+0x10/0x18\n[   47.145904]  slab_free_freelist_hook+0xa4/0x1b0\n[   47.150444]  kmem_cache_free+0x8c/0x528\n[   47.154292]  kfree_skbmem+0x94/0x108\n[   47.157880]  consume_skb+0x10c/0x5a8\n[   47.161466]  __dev_kfree_skb_any+0x88/0xa0\n[   47.165598]  brcmu_pkt_buf_free_skb+0x44/0x68 [brcmutil]\n[   47.171023]  brcmf_txfinalize+0xec/0x190 [brcmfmac]\n[   47.176016]  brcmf_proto_bcdc_txcomplete+0x1c0/0x210 [brcmfmac]\n[   47.182056]  brcmf_sdio_sendfromq+0x8dc/0x1e80 [brcmfmac]\n[   47.187568]  brcmf_sdio_dpc+0xb48/0x2108 [brcmfmac]\n[   47.192529]  brcmf_sdio_dataworker+0xc8/0x238 [brcmfmac]\n[   47.197859]  process_one_work+0x7fc/0x1a80\n[   47.201965]  worker_thread+0x31c/0xc40\n[   47.205726]  kthread+0x2d8/0x370\n[   47.208967]  ret_from_fork+0x10/0x18\n[   47.212546]\n[   47.214051] The buggy address belongs to the object at ffffff803f588280\n[   47.214051]  which belongs to the cache skbuff_head_cache of size 208\n[   47.227086] The buggy address is located 104 bytes inside of\n[   47.227086]  208-byte region [ffffff803f588280, ffffff803f588350)\n[   47.238814] The buggy address belongs to the page:\n[   47.243618] page:ffffffff00dd6200 refcount:1 mapcou\n---truncated---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The UAF is in brcmfmac\u0027s ndo_start_xmit TX path (brcmf_netdev_start_xmit \u2192 brcmf_proto_tx_queue_data), reached when the local stack transmits through the WiFi interface; it is not an RX/WiFi-frame-injection path, so Local applies rather than Adjacent/Network.\nAC:L - The attacker drives packet TX which both enters start_xmit and schedules async bus completion (brcmf_sdio_trigger_dpc/USB URB/PCIe TX status) that frees the skb, and can retry by flooding; the race was hit in practice (KASAN), so success does not depend on attacker-uncontrollable conditions.\nPR:L - Any unprivileged local user can open sockets and send traffic that is routed out a brcmfmac wlan interface (typical on Android phones and Broadcom/Cypress embedded devices), with no capability or init-namespace root required.\nUI:N - The attacker triggers the race solely by generating their own TX traffic on the interface; no separate victim action such as mounting a filesystem or opening a crafted file is required.\nS:U - The use-after-free corrupts host-kernel skbuff slab state within the same OS security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - This is a slab use-after-free read of skb-\u003elen after brcmf_txfinalize frees the skbuff; per UAF guidance, reclaim/spray of the freed object enables kernel memory disclosure (including via the value later visible in interface TX stats).\nI:H - The same skbuff use-after-free is a reclaimable heap object under attacker-driven TX load; per UAF guidance this class of bug enables heap corruption and control-flow hijack primitives, so Integrity is High.\nA:H - The documented failure is a KASAN use-after-free in brcmf_netdev_start_xmit that oopses/panics the kernel, and any UAF scores Availability High even when not fully exploited for code execution."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:58:38.195Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560"
        },
        {
          "url": "https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df"
        },
        {
          "url": "https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2"
        },
        {
          "url": "https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed"
        },
        {
          "url": "https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02"
        },
        {
          "url": "https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e"
        },
        {
          "url": "https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478"
        }
      ],
      "title": "wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50408",
    "datePublished": "2025-09-18T16:03:53.197Z",
    "dateReserved": "2025-09-17T14:53:07.001Z",
    "dateUpdated": "2026-08-05T08:58:38.195Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

BDU:2026-02181 (CVE-2022-50408)

CVE-2022-50408 (GCVE-0-2022-50408)

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