Vulnerability-Lookup

BDU:2026-03886 (CVE-2022-50575)

Vulnerability from fstec – Published: 2026-03-26 – Updated: 2026-03-26 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции privcmd_ioctl_mmap_resource() модуля drivers/xen/privcmd.c драйвера устройств кадрового буфера ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции privcmd_ioctl_mmap_resource() модуля drivers/xen/privcmd.c драйвера устройств кадрового буфера ядра операционной системы Linux связана с распределением ресурсов без ограничений и регулирования. Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании

Severity

4.6 (Medium) CVSS 2.0


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

5.5 (Medium) CVSS 3.1


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

Class

Multi-factor vulnerability

Status

Confirmed by the vendor

Exploitation

Resource exhaustion

Incidents

Being clarified

Remediation

Software update

CWE

CWE-400 - Неконтролируемый расход ресурса («Истощение ресурса»)
CWE-404 - Некорректная зачистка или освобождение ресурсов
CWE-770 - Неограниченное распределение ресурсов или дросселирование

Aliases

CVE-2022-50575

References

17 references

URL
https://www.cve.org/CVERecord?id=CVE-2022-50575
https://git.kernel.org/stable/c/5d68ae32d132ea2af73bc223fd64c46f85302a8b
https://git.kernel.org/stable/c/4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5
https://git.kernel.org/stable/c/46026bb057c35f5bb111bf95e00cd8366d2e34d4
https://git.kernel.org/stable/c/0bf874183b32eae2cc20e3c5be38ec3d33e7e564
https://git.kernel.org/stable/c/e0c5f1058ed96f2b7487560c4c4cbd768d13d065
https://git.kernel.org/stable/c/4da411086f5ab32f811a89ef804980ec106ebb65
https://git.kernel.org/linus/8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2
https://access.redhat.com/security/cve/cve-2022-50575
https://security-tracker.debian.org/tracker/CVE-2022-50575
https://ubuntu.com/security/CVE-2022-50575

Impacted products

4 products from 4 vendors

Vendors

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

Products

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

Versions

7 (Red Hat Enterprise Linux), 18.04 LTS (Ubuntu), 8 (Red Hat Enterprise Linux), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), от 4.20 до 5.4.228 включительно (Linux), от 5.5 до 5.10.162 включительно (Linux), от 5.11 до 5.15.85 включительно (Linux), от 5.16 до 6.0.15 включительно (Linux), от 6.1 до 6.1.1 включительно (Linux), от 4.18 до 4.19.269 включительно (Linux)

Product types

Operating system

Platforms

Red Hat, Inc. Red Hat Enterprise Linux 7, Canonical Ltd. Ubuntu 18.04 LTS, Inc. Red Hat Enterprise Linux 8, Canonical Ltd. Ubuntu 20.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Canonical Ltd. Ubuntu 22.04 LTS, Inc. Red Hat Enterprise Linux 9, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.228 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.162 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.85 включительно, Сообщество свободного программного обеспечения Linux от 5.16 до 6.0.15 включительно, Сообщество свободного программного обеспечения Linux от 6.1 до 6.1.1 включительно, Сообщество свободного программного обеспечения Linux от 4.18 до 4.19.269 включительно

Mitigations

В условиях отсутствия обновлений безопасности от производителя рекомендуется придерживаться "Рекомендаций по безопасной настройке операционных систем LINUX", изложенных в методическом документе ФСТЭК России, утверждённом 25 декабря 2022 года. Использование рекомендаций: Для Linux: https://git.kernel.org/stable/c/5d68ae32d132ea2af73bc223fd64c46f85302a8b https://git.kernel.org/stable/c/4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5 https://git.kernel.org/stable/c/46026bb057c35f5bb111bf95e00cd8366d2e34d4 https://git.kernel.org/stable/c/0bf874183b32eae2cc20e3c5be38ec3d33e7e564 https://git.kernel.org/stable/c/e0c5f1058ed96f2b7487560c4c4cbd768d13d065 https://git.kernel.org/stable/c/4da411086f5ab32f811a89ef804980ec106ebb65 https://git.kernel.org/linus/8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79 Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/cve-2022-50575 Для программных продуктов Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2022-50575 Для программных продуктов Ubuntu: https://ubuntu.com/security/CVE-2022-50575 Компенсирующие меры: - минимизация пользовательских привилегий; - отключение/удаление неиспользуемых учётных записей пользователей; - контроль журналов аудита кластера для отслеживания попыток эксплуатации уязвимости.

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:N/I:N/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "CVSS 4.0": null,
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  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "05.12.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "26.03.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "26.03.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-03886",
  "\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-2022-50575",
  "\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 \u043c\u043d\u043e\u0433\u043e\u0444\u0430\u043a\u0442\u043e\u0440\u043d\u0430\u044f",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Red Hat Enterprise Linux, Ubuntu, 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": "Red Hat, Inc. Red Hat Enterprise Linux 7 , 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 , Canonical Ltd. Ubuntu 22.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 9 , \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 5.4.228 \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 5.10.162 \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 5.15.85 \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 5.16 \u0434\u043e 6.0.15 \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 6.1 \u0434\u043e 6.1.1 \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 4.18 \u0434\u043e 4.19.269 \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 privcmd_ioctl_mmap_resource() \u043c\u043e\u0434\u0443\u043b\u044f drivers/xen/privcmd.c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043a\u0430\u0434\u0440\u043e\u0432\u043e\u0433\u043e \u0431\u0443\u0444\u0435\u0440\u0430 \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 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\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": "\u041d\u0435\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u0440\u0430\u0441\u0445\u043e\u0434 \u0440\u0435\u0441\u0443\u0440\u0441\u0430 (\u00ab\u0418\u0441\u0442\u043e\u0449\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u00bb) (CWE-400), \u041d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u0430\u044f \u0437\u0430\u0447\u0438\u0441\u0442\u043a\u0430 \u0438\u043b\u0438 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432 (CWE-404), \u041d\u0435\u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u043e\u0435 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432 \u0438\u043b\u0438 \u0434\u0440\u043e\u0441\u0441\u0435\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 (CWE-770)",
  "\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 privcmd_ioctl_mmap_resource() \u043c\u043e\u0434\u0443\u043b\u044f drivers/xen/privcmd.c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043a\u0430\u0434\u0440\u043e\u0432\u043e\u0433\u043e \u0431\u0443\u0444\u0435\u0440\u0430 \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 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435\u043c \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432 \u0431\u0435\u0437 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u0438 \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \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 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\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": "\u0418\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://www.cve.org/CVERecord?id=CVE-2022-50575\nhttps://git.kernel.org/stable/c/5d68ae32d132ea2af73bc223fd64c46f85302a8b\nhttps://git.kernel.org/stable/c/4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5\nhttps://git.kernel.org/stable/c/46026bb057c35f5bb111bf95e00cd8366d2e34d4\nhttps://git.kernel.org/stable/c/0bf874183b32eae2cc20e3c5be38ec3d33e7e564\nhttps://git.kernel.org/stable/c/e0c5f1058ed96f2b7487560c4c4cbd768d13d065\nhttps://git.kernel.org/stable/c/4da411086f5ab32f811a89ef804980ec106ebb65\nhttps://git.kernel.org/linus/8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2\nhttps://access.redhat.com/security/cve/cve-2022-50575\nhttps://security-tracker.debian.org/tracker/CVE-2022-50575\nhttps://ubuntu.com/security/CVE-2022-50575",
  "\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-400, CWE-404, CWE-770",
  "\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 4,6)\n\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 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5,5)"
}

CVE-2022-50575 (GCVE-0-2022-50575)

Vulnerability from cvelistv5 – Published: 2025-10-22 13:23 – Updated: 2026-05-11 19:22

Title

xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()

Summary

In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource() As 'kdata.num' is user-controlled data, if user tries to allocate memory larger than(>=) MAX_ORDER, then kcalloc() will fail, it creates a stack trace and messes up dmesg with a warning. Call trace: -> privcmd_ioctl --> privcmd_ioctl_mmap_resource Add __GFP_NOWARN in order to avoid too large allocation warning. This is detected by static analysis using smatch.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/5d68ae32d132ea2af…
https://git.kernel.org/stable/c/4f983ee5e5de924d9…
https://git.kernel.org/stable/c/46026bb057c35f5bb…
https://git.kernel.org/stable/c/0bf874183b32eae2c…
https://git.kernel.org/stable/c/e0c5f1058ed96f2b7…
https://git.kernel.org/stable/c/4da411086f5ab32f8…
https://git.kernel.org/stable/c/8b997b2bb2c53b76a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3ad0876554cafa368f574d4d408468510543e9ff , < 5d68ae32d132ea2af73bc223fd64c46f85302a8b (git) Affected: 3ad0876554cafa368f574d4d408468510543e9ff , < 4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5 (git) Affected: 3ad0876554cafa368f574d4d408468510543e9ff , < 46026bb057c35f5bb111bf95e00cd8366d2e34d4 (git) Affected: 3ad0876554cafa368f574d4d408468510543e9ff , < 0bf874183b32eae2cc20e3c5be38ec3d33e7e564 (git) Affected: 3ad0876554cafa368f574d4d408468510543e9ff , < e0c5f1058ed96f2b7487560c4c4cbd768d13d065 (git) Affected: 3ad0876554cafa368f574d4d408468510543e9ff , < 4da411086f5ab32f811a89ef804980ec106ebb65 (git) Affected: 3ad0876554cafa368f574d4d408468510543e9ff , < 8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79 (git)
Linux	Linux	Affected: 4.18 Unaffected: 0 , < 4.18 (semver) Unaffected: 4.19.270 , ≤ 4.19.* (semver) Unaffected: 5.4.229 , ≤ 5.4.* (semver) Unaffected: 5.10.163 , ≤ 5.10.* (semver) Unaffected: 5.15.86 , ≤ 5.15.* (semver) Unaffected: 6.0.16 , ≤ 6.0.* (semver) Unaffected: 6.1.2 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/xen/privcmd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5d68ae32d132ea2af73bc223fd64c46f85302a8b",
              "status": "affected",
              "version": "3ad0876554cafa368f574d4d408468510543e9ff",
              "versionType": "git"
            },
            {
              "lessThan": "4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5",
              "status": "affected",
              "version": "3ad0876554cafa368f574d4d408468510543e9ff",
              "versionType": "git"
            },
            {
              "lessThan": "46026bb057c35f5bb111bf95e00cd8366d2e34d4",
              "status": "affected",
              "version": "3ad0876554cafa368f574d4d408468510543e9ff",
              "versionType": "git"
            },
            {
              "lessThan": "0bf874183b32eae2cc20e3c5be38ec3d33e7e564",
              "status": "affected",
              "version": "3ad0876554cafa368f574d4d408468510543e9ff",
              "versionType": "git"
            },
            {
              "lessThan": "e0c5f1058ed96f2b7487560c4c4cbd768d13d065",
              "status": "affected",
              "version": "3ad0876554cafa368f574d4d408468510543e9ff",
              "versionType": "git"
            },
            {
              "lessThan": "4da411086f5ab32f811a89ef804980ec106ebb65",
              "status": "affected",
              "version": "3ad0876554cafa368f574d4d408468510543e9ff",
              "versionType": "git"
            },
            {
              "lessThan": "8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79",
              "status": "affected",
              "version": "3ad0876554cafa368f574d4d408468510543e9ff",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/xen/privcmd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.18"
            },
            {
              "lessThan": "4.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.270",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.229",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.163",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.86",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()\n\nAs \u0027kdata.num\u0027 is user-controlled data, if user tries to allocate\nmemory larger than(\u003e=) MAX_ORDER, then kcalloc() will fail, it\ncreates a stack trace and messes up dmesg with a warning.\n\nCall trace:\n-\u003e privcmd_ioctl\n--\u003e privcmd_ioctl_mmap_resource\n\nAdd __GFP_NOWARN in order to avoid too large allocation warning.\nThis is detected by static analysis using smatch."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:22:04.640Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5d68ae32d132ea2af73bc223fd64c46f85302a8b"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5"
        },
        {
          "url": "https://git.kernel.org/stable/c/46026bb057c35f5bb111bf95e00cd8366d2e34d4"
        },
        {
          "url": "https://git.kernel.org/stable/c/0bf874183b32eae2cc20e3c5be38ec3d33e7e564"
        },
        {
          "url": "https://git.kernel.org/stable/c/e0c5f1058ed96f2b7487560c4c4cbd768d13d065"
        },
        {
          "url": "https://git.kernel.org/stable/c/4da411086f5ab32f811a89ef804980ec106ebb65"
        },
        {
          "url": "https://git.kernel.org/stable/c/8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79"
        }
      ],
      "title": "xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50575",
    "datePublished": "2025-10-22T13:23:29.595Z",
    "dateReserved": "2025-10-22T13:20:23.761Z",
    "dateUpdated": "2026-05-11T19:22:04.640Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
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.

Related by attack behaviour

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.