Vulnerability-Lookup

BDU:2026-02367 (CVE-2022-50314)

Vulnerability from fstec – Published: 2026-02-27 – Updated: 2026-02-27 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции nbd_start_device_ioctl() в модуле drivers/block/nbd.c драйвера блочных устройств ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции nbd_start_device_ioctl() в модуле drivers/block/nbd.c драйвера блочных устройств ядра операционной системы Linux связана с ошибками синхронизации при использовании общего ресурса. 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

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Resource manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-667 - Недостаточная блокировка

Aliases

CVE-2022-50314

References

19 references

URL
https://git.kernel.org/stable/c/c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398
https://git.kernel.org/stable/c/3575949513ea3b387b30dac1e69468a923c86caf
https://git.kernel.org/stable/c/c0d73be0af8c1310713bc39a8d7a22e35084e14f
https://git.kernel.org/stable/c/35fb7d4a53d9e36d1b91161ea9870d9c6d57dccf
https://git.kernel.org/stable/c/b2700f98b3f4dd19fb4315b70581e5caff89eb49
https://git.kernel.org/stable/c/62006a72b05e0d38727eef5188700f2488be5e89
https://git.kernel.org/stable/c/3ba3846cb3e2fb3c6fbf79e998472821b298419e
https://www.cve.org/CVERecord?id=CVE-2022-50314
https://git.kernel.org/linus/1de7c3cf48fc41cd95adb12bd1ea9033a917798a
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://security-tracker.debian.org/tracker/CVE-2022-50314
https://access.redhat.com/security/cve/CVE-2022-50314
https://ubuntu.com/security/CVE-2022-50314

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

14.04 LTS (Ubuntu), 16.04 LTS (Ubuntu), 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 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), от 6.0 до 6.0.2 включительно (Linux), от 4.12 до 4.14.295 включительно (Linux)

Product types

Operating system

Platforms

Canonical Ltd. Ubuntu 14.04 LTS, 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, Canonical Ltd. Ubuntu 22.04 LTS, Inc. Red Hat Enterprise Linux 9, 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, Сообщество свободного программного обеспечения Linux от 6.0 до 6.0.2 включительно, Сообщество свободного программного обеспечения Linux от 4.12 до 4.14.295 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/c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398 https://git.kernel.org/stable/c/3575949513ea3b387b30dac1e69468a923c86caf https://git.kernel.org/stable/c/c0d73be0af8c1310713bc39a8d7a22e35084e14f https://git.kernel.org/stable/c/35fb7d4a53d9e36d1b91161ea9870d9c6d57dccf https://git.kernel.org/stable/c/b2700f98b3f4dd19fb4315b70581e5caff89eb49 https://git.kernel.org/stable/c/62006a72b05e0d38727eef5188700f2488be5e89 https://git.kernel.org/stable/c/3ba3846cb3e2fb3c6fbf79e998472821b298419e https://git.kernel.org/linus/1de7c3cf48fc41cd95adb12bd1ea9033a917798a 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 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2022-50314 Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/CVE-2022-50314 Для Ubuntu: https://ubuntu.com/security/CVE-2022-50314

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,
  "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": "14.04 LTS (Ubuntu), 16.04 LTS (Ubuntu), 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), \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), \u043e\u0442 6.0 \u0434\u043e 6.0.2 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.12 \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\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\n\u0414\u043b\u044f Linux:\n\nhttps://git.kernel.org/stable/c/c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398\nhttps://git.kernel.org/stable/c/3575949513ea3b387b30dac1e69468a923c86caf\nhttps://git.kernel.org/stable/c/c0d73be0af8c1310713bc39a8d7a22e35084e14f\nhttps://git.kernel.org/stable/c/35fb7d4a53d9e36d1b91161ea9870d9c6d57dccf\nhttps://git.kernel.org/stable/c/b2700f98b3f4dd19fb4315b70581e5caff89eb49\nhttps://git.kernel.org/stable/c/62006a72b05e0d38727eef5188700f2488be5e89\nhttps://git.kernel.org/stable/c/3ba3846cb3e2fb3c6fbf79e998472821b298419e\nhttps://git.kernel.org/linus/1de7c3cf48fc41cd95adb12bd1ea9033a917798a\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\n\n\n\n\u0414\u043b\u044f Debian GNU/Linux:\n\nhttps://security-tracker.debian.org/tracker/CVE-2022-50314\n\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.:\n\nhttps://access.redhat.com/security/cve/CVE-2022-50314\n\n\n\n\u0414\u043b\u044f Ubuntu:\nhttps://ubuntu.com/security/CVE-2022-50314",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "08.09.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "27.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "27.02.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-02367",
  "\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-2022-50314",
  "\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 14.04 LTS , 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 , 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 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 , \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 Linux \u043e\u0442 4.12 \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 nbd_start_device_ioctl() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 drivers/block/nbd.c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0431\u043b\u043e\u0447\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \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\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u0430\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0430 (CWE-667)",
  "\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 nbd_start_device_ioctl() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 drivers/block/nbd.c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0431\u043b\u043e\u0447\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \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 \u043e\u0448\u0438\u0431\u043a\u0430\u043c\u0438 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u043e\u0431\u0449\u0435\u0433\u043e \u0440\u0435\u0441\u0443\u0440\u0441\u0430. \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": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://git.kernel.org/stable/c/c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398\nhttps://git.kernel.org/stable/c/3575949513ea3b387b30dac1e69468a923c86caf\nhttps://git.kernel.org/stable/c/c0d73be0af8c1310713bc39a8d7a22e35084e14f\nhttps://git.kernel.org/stable/c/35fb7d4a53d9e36d1b91161ea9870d9c6d57dccf\nhttps://git.kernel.org/stable/c/b2700f98b3f4dd19fb4315b70581e5caff89eb49\nhttps://git.kernel.org/stable/c/62006a72b05e0d38727eef5188700f2488be5e89\nhttps://git.kernel.org/stable/c/3ba3846cb3e2fb3c6fbf79e998472821b298419e\n\nhttps://www.cve.org/CVERecord?id=CVE-2022-50314\n\nhttps://git.kernel.org/linus/1de7c3cf48fc41cd95adb12bd1ea9033a917798a\n\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.296\n\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.262\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.220\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17\n\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3\n\nhttps://security-tracker.debian.org/tracker/CVE-2022-50314\n\nhttps://access.redhat.com/security/cve/CVE-2022-50314\n\nhttps://ubuntu.com/security/CVE-2022-50314",
  "\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-667",
  "\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-2022-50314 (GCVE-0-2022-50314)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:46 – Updated: 2026-05-11 19:16

Title

nbd: Fix hung when signal interrupts nbd_start_device_ioctl()

Summary

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix hung when signal interrupts nbd_start_device_ioctl() syzbot reported hung task [1]. The following program is a simplified version of the reproducer: int main(void) { int sv[2], fd; if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv) < 0) return 1; if ((fd = open("/dev/nbd0", 0)) < 0) return 1; if (ioctl(fd, NBD_SET_SIZE_BLOCKS, 0x81) < 0) return 1; if (ioctl(fd, NBD_SET_SOCK, sv[0]) < 0) return 1; if (ioctl(fd, NBD_DO_IT) < 0) return 1; return 0; } When signal interrupt nbd_start_device_ioctl() waiting the condition atomic_read(&config->recv_threads) == 0, the task can hung because it waits the completion of the inflight IOs. This patch fixes the issue by clearing queue, not just shutdown, when signal interrupt nbd_start_device_ioctl().

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

8 references

URL	Tags
https://git.kernel.org/stable/c/3ba3846cb3e2fb3c6…
https://git.kernel.org/stable/c/c7b4641bd2395c2f3…
https://git.kernel.org/stable/c/3575949513ea3b387…
https://git.kernel.org/stable/c/b2700f98b3f4dd19f…
https://git.kernel.org/stable/c/c0d73be0af8c13107…
https://git.kernel.org/stable/c/62006a72b05e0d387…
https://git.kernel.org/stable/c/35fb7d4a53d9e36d1…
https://git.kernel.org/stable/c/1de7c3cf48fc41cd9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5ea8d10802ec4c153a6e21eebaf412e2abd29736 , < 3ba3846cb3e2fb3c6fbf79e998472821b298419e (git) Affected: 5ea8d10802ec4c153a6e21eebaf412e2abd29736 , < c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398 (git) Affected: 5ea8d10802ec4c153a6e21eebaf412e2abd29736 , < 3575949513ea3b387b30dac1e69468a923c86caf (git) Affected: 5ea8d10802ec4c153a6e21eebaf412e2abd29736 , < b2700f98b3f4dd19fb4315b70581e5caff89eb49 (git) Affected: 5ea8d10802ec4c153a6e21eebaf412e2abd29736 , < c0d73be0af8c1310713bc39a8d7a22e35084e14f (git) Affected: 5ea8d10802ec4c153a6e21eebaf412e2abd29736 , < 62006a72b05e0d38727eef5188700f2488be5e89 (git) Affected: 5ea8d10802ec4c153a6e21eebaf412e2abd29736 , < 35fb7d4a53d9e36d1b91161ea9870d9c6d57dccf (git) Affected: 5ea8d10802ec4c153a6e21eebaf412e2abd29736 , < 1de7c3cf48fc41cd95adb12bd1ea9033a917798a (git)
Linux	Linux	Affected: 4.12 Unaffected: 0 , < 4.12 (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)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/nbd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3ba3846cb3e2fb3c6fbf79e998472821b298419e",
              "status": "affected",
              "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
              "versionType": "git"
            },
            {
              "lessThan": "c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398",
              "status": "affected",
              "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
              "versionType": "git"
            },
            {
              "lessThan": "3575949513ea3b387b30dac1e69468a923c86caf",
              "status": "affected",
              "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
              "versionType": "git"
            },
            {
              "lessThan": "b2700f98b3f4dd19fb4315b70581e5caff89eb49",
              "status": "affected",
              "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
              "versionType": "git"
            },
            {
              "lessThan": "c0d73be0af8c1310713bc39a8d7a22e35084e14f",
              "status": "affected",
              "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
              "versionType": "git"
            },
            {
              "lessThan": "62006a72b05e0d38727eef5188700f2488be5e89",
              "status": "affected",
              "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
              "versionType": "git"
            },
            {
              "lessThan": "35fb7d4a53d9e36d1b91161ea9870d9c6d57dccf",
              "status": "affected",
              "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
              "versionType": "git"
            },
            {
              "lessThan": "1de7c3cf48fc41cd95adb12bd1ea9033a917798a",
              "status": "affected",
              "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/nbd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.12"
            },
            {
              "lessThan": "4.12",
              "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": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.262",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.220",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.150",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.75",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: Fix hung when signal interrupts nbd_start_device_ioctl()\n\nsyzbot reported hung task [1].  The following program is a simplified\nversion of the reproducer:\n\nint main(void)\n{\n\tint sv[2], fd;\n\n\tif (socketpair(AF_UNIX, SOCK_STREAM, 0, sv) \u003c 0)\n\t\treturn 1;\n\tif ((fd = open(\"/dev/nbd0\", 0)) \u003c 0)\n\t\treturn 1;\n\tif (ioctl(fd, NBD_SET_SIZE_BLOCKS, 0x81) \u003c 0)\n\t\treturn 1;\n\tif (ioctl(fd, NBD_SET_SOCK, sv[0]) \u003c 0)\n\t\treturn 1;\n\tif (ioctl(fd, NBD_DO_IT) \u003c 0)\n\t\treturn 1;\n\treturn 0;\n}\n\nWhen signal interrupt nbd_start_device_ioctl() waiting the condition\natomic_read(\u0026config-\u003erecv_threads) == 0, the task can hung because it\nwaits the completion of the inflight IOs.\n\nThis patch fixes the issue by clearing queue, not just shutdown, when\nsignal interrupt nbd_start_device_ioctl()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:16:55.078Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3ba3846cb3e2fb3c6fbf79e998472821b298419e"
        },
        {
          "url": "https://git.kernel.org/stable/c/c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398"
        },
        {
          "url": "https://git.kernel.org/stable/c/3575949513ea3b387b30dac1e69468a923c86caf"
        },
        {
          "url": "https://git.kernel.org/stable/c/b2700f98b3f4dd19fb4315b70581e5caff89eb49"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0d73be0af8c1310713bc39a8d7a22e35084e14f"
        },
        {
          "url": "https://git.kernel.org/stable/c/62006a72b05e0d38727eef5188700f2488be5e89"
        },
        {
          "url": "https://git.kernel.org/stable/c/35fb7d4a53d9e36d1b91161ea9870d9c6d57dccf"
        },
        {
          "url": "https://git.kernel.org/stable/c/1de7c3cf48fc41cd95adb12bd1ea9033a917798a"
        }
      ],
      "title": "nbd: Fix hung when signal interrupts nbd_start_device_ioctl()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50314",
    "datePublished": "2025-09-15T14:46:09.240Z",
    "dateReserved": "2025-09-15T14:18:36.813Z",
    "dateUpdated": "2026-05-11T19:16:55.078Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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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.

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.
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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:2026-02367 (CVE-2022-50314)

CVE-2022-50314 (GCVE-0-2022-50314)

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