Vulnerability-Lookup

BDU:2026-05626 (CVE-2022-49865)

Vulnerability from fstec – Published: 2026-04-20 – Updated: 2026-04-20 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции ip6addrlbl_putmsg() в модуле net/ipv6/addrlabel.c реализации протокола IPv6 ядра операционной системы Linux, позволяющая нарушителю получить доступ к защищаемой информации или вызвать отказ в обслуживании

Summary

Уязвимость функции ip6addrlbl_putmsg() в модуле net/ipv6/addrlabel.c реализации протокола IPv6 ядра операционной системы Linux связана с доступом к неинициализированному указателю. Эксплуатация уязвимости может позволить нарушителю получить доступ к защищаемой информации или вызвать отказ в обслуживании

Severity

6.2 (Medium) CVSS 2.0


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

7.1 (High) CVSS 3.1


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation, Resource manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-824 - Доступ неинициализированного указателя
CWE-909 - Отсутствие инициализации ресурса

Aliases

CVE-2022-49865

References

12 references

URL
https://git.kernel.org/stable/c/568a47ff756f913e8b374c2af9d22cd2c772c744
https://git.kernel.org/stable/c/0f85b7ae7c4b5d7b4bbf7ac653a733c181a8a2bf
https://git.kernel.org/stable/c/58cd7fdc8c1e6c7873acc08f190069fed88d1c12
https://git.kernel.org/stable/c/6d26d0587abccb9835382a0b53faa7b9b1cd83e3
https://git.kernel.org/stable/c/49e92ba5ecd7d72ba369dde2ccff738edd028a47
https://git.kernel.org/stable/c/a033b86c7f7621fde31f0364af8986f43b44914f
https://git.kernel.org/stable/c/2acb2779b147decd300c117683d5a32ce61c75d6
https://www.cve.org/CVERecord?id=CVE-2022-49865
https://git.kernel.org/linus/c23fb2c82267638f9d206cb96bb93e1f93ad7828
https://access.redhat.com/security/cve/cve-2022-49865
https://security-tracker.debian.org/tracker/CVE-2022-49865
https://ubuntu.com/security/CVE-2022-49865

Impacted products

5 products from 5 vendors

Vendors

Canonical Ltd., Сообщество свободного программного обеспечения, Red Hat, Inc., АО «СберТех»

Products

Ubuntu, Debian GNU/Linux, Red Hat Enterprise Linux, Linux, Platform V SberLinux OS Server (запись в едином реестре российских программ №18785)

Versions

16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), от 4.10 до 4.14.299 включительно (Linux), от 4.15 до 4.19.266 включительно (Linux), от 4.20 до 5.4.224 включительно (Linux), от 5.5 до 5.10.154 включительно (Linux), от 5.11 до 5.15.78 включительно (Linux), от 5.16 до 6.0.8 включительно (Linux), от 2.6.25 до 4.9.333 включительно (Linux), до 9.2.0-fstec (Platform V SberLinux OS Server)

Product types

Operating system

Platforms

Canonical Ltd. Ubuntu 16.04 LTS, Canonical Ltd. Ubuntu 18.04 LTS, Canonical Ltd. Ubuntu 20.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Canonical Ltd. Ubuntu 22.04 LTS, Red Hat, Inc. Red Hat Enterprise Linux 9, Сообщество свободного программного обеспечения Linux от 4.10 до 4.14.299 включительно, Сообщество свободного программного обеспечения Linux от 4.15 до 4.19.266 включительно, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.224 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.154 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.78 включительно, Сообщество свободного программного обеспечения Linux от 5.16 до 6.0.8 включительно, Сообщество свободного программного обеспечения Linux от 2.6.25 до 4.9.333 включительно, АО «СберТех» Platform V SberLinux OS Server до 9.2.0-fstec (запись в едином реестре российских программ №18785)

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/568a47ff756f913e8b374c2af9d22cd2c772c744 https://git.kernel.org/stable/c/0f85b7ae7c4b5d7b4bbf7ac653a733c181a8a2bf https://git.kernel.org/stable/c/58cd7fdc8c1e6c7873acc08f190069fed88d1c12 https://git.kernel.org/stable/c/6d26d0587abccb9835382a0b53faa7b9b1cd83e3 https://git.kernel.org/stable/c/49e92ba5ecd7d72ba369dde2ccff738edd028a47 https://git.kernel.org/stable/c/a033b86c7f7621fde31f0364af8986f43b44914f https://git.kernel.org/stable/c/2acb2779b147decd300c117683d5a32ce61c75d6 https://git.kernel.org/linus/c23fb2c82267638f9d206cb96bb93e1f93ad7828 Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/cve-2022-49865 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2022-49865 Для Ubuntu: https://ubuntu.com/security/CVE-2022-49865 Для Platform V SberLinux OS Server: Обновление операционной системы до версии 9.2.0-fstec или выше

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:C/I:N/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:H/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": "07.11.2022",
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  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-05626",
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  "\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, Debian GNU/Linux, Red Hat Enterprise Linux, Linux, Platform V SberLinux OS Server (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u211618785)",
  "\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 , 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 4.10 \u0434\u043e 4.14.299 \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 4.19.266 \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 5.4.224 \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 5.10.154 \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 5.15.78 \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 6.0.8 \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 2.6.25 \u0434\u043e 4.9.333 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0410\u041e \u00ab\u0421\u0431\u0435\u0440\u0422\u0435\u0445\u00bb Platform V SberLinux OS Server \u0434\u043e 9.2.0-fstec  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u211618785)",
  "\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 ip6addrlbl_putmsg() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 net/ipv6/addrlabel.c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 IPv6 \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 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0438\u043b\u0438 \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": "\u0414\u043e\u0441\u0442\u0443\u043f \u043d\u0435\u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f (CWE-824), \u041e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435 \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0435\u0441\u0443\u0440\u0441\u0430 (CWE-909)",
  "\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 ip6addrlbl_putmsg() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 net/ipv6/addrlabel.c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 IPv6 \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 \u0434\u043e\u0441\u0442\u0443\u043f\u043e\u043c \u043a \u043d\u0435\u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044e. \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 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0438\u043b\u0438 \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 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445, \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/568a47ff756f913e8b374c2af9d22cd2c772c744\nhttps://git.kernel.org/stable/c/0f85b7ae7c4b5d7b4bbf7ac653a733c181a8a2bf\nhttps://git.kernel.org/stable/c/58cd7fdc8c1e6c7873acc08f190069fed88d1c12\nhttps://git.kernel.org/stable/c/6d26d0587abccb9835382a0b53faa7b9b1cd83e3\nhttps://git.kernel.org/stable/c/49e92ba5ecd7d72ba369dde2ccff738edd028a47\nhttps://git.kernel.org/stable/c/a033b86c7f7621fde31f0364af8986f43b44914f\nhttps://git.kernel.org/stable/c/2acb2779b147decd300c117683d5a32ce61c75d6\nhttps://www.cve.org/CVERecord?id=CVE-2022-49865\nhttps://git.kernel.org/linus/c23fb2c82267638f9d206cb96bb93e1f93ad7828\nhttps://access.redhat.com/security/cve/cve-2022-49865\nhttps://security-tracker.debian.org/tracker/CVE-2022-49865\nhttps://ubuntu.com/security/CVE-2022-49865",
  "\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-824, CWE-909",
  "\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 6,2)\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 7,1)"
}

CVE-2022-49865 (GCVE-0-2022-49865)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2026-05-11 19:08

Title

ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network When copying a `struct ifaddrlblmsg` to the network, __ifal_reserved remained uninitialized, resulting in a 1-byte infoleak: BUG: KMSAN: kernel-network-infoleak in __netdev_start_xmit ./include/linux/netdevice.h:4841 __netdev_start_xmit ./include/linux/netdevice.h:4841 netdev_start_xmit ./include/linux/netdevice.h:4857 xmit_one net/core/dev.c:3590 dev_hard_start_xmit+0x1dc/0x800 net/core/dev.c:3606 __dev_queue_xmit+0x17e8/0x4350 net/core/dev.c:4256 dev_queue_xmit ./include/linux/netdevice.h:3009 __netlink_deliver_tap_skb net/netlink/af_netlink.c:307 __netlink_deliver_tap+0x728/0xad0 net/netlink/af_netlink.c:325 netlink_deliver_tap net/netlink/af_netlink.c:338 __netlink_sendskb net/netlink/af_netlink.c:1263 netlink_sendskb+0x1d9/0x200 net/netlink/af_netlink.c:1272 netlink_unicast+0x56d/0xf50 net/netlink/af_netlink.c:1360 nlmsg_unicast ./include/net/netlink.h:1061 rtnl_unicast+0x5a/0x80 net/core/rtnetlink.c:758 ip6addrlbl_get+0xfad/0x10f0 net/ipv6/addrlabel.c:628 rtnetlink_rcv_msg+0xb33/0x1570 net/core/rtnetlink.c:6082 ... Uninit was created at: slab_post_alloc_hook+0x118/0xb00 mm/slab.h:742 slab_alloc_node mm/slub.c:3398 __kmem_cache_alloc_node+0x4f2/0x930 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 __kmalloc_node_track_caller+0x117/0x3d0 mm/slab_common.c:975 kmalloc_reserve net/core/skbuff.c:437 __alloc_skb+0x27a/0xab0 net/core/skbuff.c:509 alloc_skb ./include/linux/skbuff.h:1267 nlmsg_new ./include/net/netlink.h:964 ip6addrlbl_get+0x490/0x10f0 net/ipv6/addrlabel.c:608 rtnetlink_rcv_msg+0xb33/0x1570 net/core/rtnetlink.c:6082 netlink_rcv_skb+0x299/0x550 net/netlink/af_netlink.c:2540 rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 netlink_unicast+0x9ab/0xf50 net/netlink/af_netlink.c:1345 netlink_sendmsg+0xebc/0x10f0 net/netlink/af_netlink.c:1921 ... This patch ensures that the reserved field is always initialized.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/568a47ff756f913e8…
https://git.kernel.org/stable/c/0f85b7ae7c4b5d7b4…
https://git.kernel.org/stable/c/6d26d0587abccb983…
https://git.kernel.org/stable/c/58cd7fdc8c1e6c787…
https://git.kernel.org/stable/c/a033b86c7f7621fde…
https://git.kernel.org/stable/c/2acb2779b147decd3…
https://git.kernel.org/stable/c/49e92ba5ecd7d72ba…
https://git.kernel.org/stable/c/c23fb2c82267638f9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2a8cc6c89039e0530a3335954253b76ed0f9339a , < 568a47ff756f913e8b374c2af9d22cd2c772c744 (git) Affected: 2a8cc6c89039e0530a3335954253b76ed0f9339a , < 0f85b7ae7c4b5d7b4bbf7ac653a733c181a8a2bf (git) Affected: 2a8cc6c89039e0530a3335954253b76ed0f9339a , < 6d26d0587abccb9835382a0b53faa7b9b1cd83e3 (git) Affected: 2a8cc6c89039e0530a3335954253b76ed0f9339a , < 58cd7fdc8c1e6c7873acc08f190069fed88d1c12 (git) Affected: 2a8cc6c89039e0530a3335954253b76ed0f9339a , < a033b86c7f7621fde31f0364af8986f43b44914f (git) Affected: 2a8cc6c89039e0530a3335954253b76ed0f9339a , < 2acb2779b147decd300c117683d5a32ce61c75d6 (git) Affected: 2a8cc6c89039e0530a3335954253b76ed0f9339a , < 49e92ba5ecd7d72ba369dde2ccff738edd028a47 (git) Affected: 2a8cc6c89039e0530a3335954253b76ed0f9339a , < c23fb2c82267638f9d206cb96bb93e1f93ad7828 (git)
Linux	Linux	Affected: 2.6.25 Unaffected: 0 , < 2.6.25 (semver) Unaffected: 4.9.334 , ≤ 4.9.* (semver) Unaffected: 4.14.300 , ≤ 4.14.* (semver) Unaffected: 4.19.267 , ≤ 4.19.* (semver) Unaffected: 5.4.225 , ≤ 5.4.* (semver) Unaffected: 5.10.155 , ≤ 5.10.* (semver) Unaffected: 5.15.79 , ≤ 5.15.* (semver) Unaffected: 6.0.9 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/addrlabel.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "568a47ff756f913e8b374c2af9d22cd2c772c744",
              "status": "affected",
              "version": "2a8cc6c89039e0530a3335954253b76ed0f9339a",
              "versionType": "git"
            },
            {
              "lessThan": "0f85b7ae7c4b5d7b4bbf7ac653a733c181a8a2bf",
              "status": "affected",
              "version": "2a8cc6c89039e0530a3335954253b76ed0f9339a",
              "versionType": "git"
            },
            {
              "lessThan": "6d26d0587abccb9835382a0b53faa7b9b1cd83e3",
              "status": "affected",
              "version": "2a8cc6c89039e0530a3335954253b76ed0f9339a",
              "versionType": "git"
            },
            {
              "lessThan": "58cd7fdc8c1e6c7873acc08f190069fed88d1c12",
              "status": "affected",
              "version": "2a8cc6c89039e0530a3335954253b76ed0f9339a",
              "versionType": "git"
            },
            {
              "lessThan": "a033b86c7f7621fde31f0364af8986f43b44914f",
              "status": "affected",
              "version": "2a8cc6c89039e0530a3335954253b76ed0f9339a",
              "versionType": "git"
            },
            {
              "lessThan": "2acb2779b147decd300c117683d5a32ce61c75d6",
              "status": "affected",
              "version": "2a8cc6c89039e0530a3335954253b76ed0f9339a",
              "versionType": "git"
            },
            {
              "lessThan": "49e92ba5ecd7d72ba369dde2ccff738edd028a47",
              "status": "affected",
              "version": "2a8cc6c89039e0530a3335954253b76ed0f9339a",
              "versionType": "git"
            },
            {
              "lessThan": "c23fb2c82267638f9d206cb96bb93e1f93ad7828",
              "status": "affected",
              "version": "2a8cc6c89039e0530a3335954253b76ed0f9339a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/addrlabel.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.25"
            },
            {
              "lessThan": "2.6.25",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.334",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.300",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.267",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.225",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.155",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.79",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.9",
              "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": "4.9.334",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.300",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.267",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.225",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.155",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.79",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.9",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network\n\nWhen copying a `struct ifaddrlblmsg` to the network, __ifal_reserved\nremained uninitialized, resulting in a 1-byte infoleak:\n\n  BUG: KMSAN: kernel-network-infoleak in __netdev_start_xmit ./include/linux/netdevice.h:4841\n   __netdev_start_xmit ./include/linux/netdevice.h:4841\n   netdev_start_xmit ./include/linux/netdevice.h:4857\n   xmit_one net/core/dev.c:3590\n   dev_hard_start_xmit+0x1dc/0x800 net/core/dev.c:3606\n   __dev_queue_xmit+0x17e8/0x4350 net/core/dev.c:4256\n   dev_queue_xmit ./include/linux/netdevice.h:3009\n   __netlink_deliver_tap_skb net/netlink/af_netlink.c:307\n   __netlink_deliver_tap+0x728/0xad0 net/netlink/af_netlink.c:325\n   netlink_deliver_tap net/netlink/af_netlink.c:338\n   __netlink_sendskb net/netlink/af_netlink.c:1263\n   netlink_sendskb+0x1d9/0x200 net/netlink/af_netlink.c:1272\n   netlink_unicast+0x56d/0xf50 net/netlink/af_netlink.c:1360\n   nlmsg_unicast ./include/net/netlink.h:1061\n   rtnl_unicast+0x5a/0x80 net/core/rtnetlink.c:758\n   ip6addrlbl_get+0xfad/0x10f0 net/ipv6/addrlabel.c:628\n   rtnetlink_rcv_msg+0xb33/0x1570 net/core/rtnetlink.c:6082\n  ...\n  Uninit was created at:\n   slab_post_alloc_hook+0x118/0xb00 mm/slab.h:742\n   slab_alloc_node mm/slub.c:3398\n   __kmem_cache_alloc_node+0x4f2/0x930 mm/slub.c:3437\n   __do_kmalloc_node mm/slab_common.c:954\n   __kmalloc_node_track_caller+0x117/0x3d0 mm/slab_common.c:975\n   kmalloc_reserve net/core/skbuff.c:437\n   __alloc_skb+0x27a/0xab0 net/core/skbuff.c:509\n   alloc_skb ./include/linux/skbuff.h:1267\n   nlmsg_new ./include/net/netlink.h:964\n   ip6addrlbl_get+0x490/0x10f0 net/ipv6/addrlabel.c:608\n   rtnetlink_rcv_msg+0xb33/0x1570 net/core/rtnetlink.c:6082\n   netlink_rcv_skb+0x299/0x550 net/netlink/af_netlink.c:2540\n   rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6109\n   netlink_unicast_kernel net/netlink/af_netlink.c:1319\n   netlink_unicast+0x9ab/0xf50 net/netlink/af_netlink.c:1345\n   netlink_sendmsg+0xebc/0x10f0 net/netlink/af_netlink.c:1921\n  ...\n\nThis patch ensures that the reserved field is always initialized."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:08:14.487Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/568a47ff756f913e8b374c2af9d22cd2c772c744"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f85b7ae7c4b5d7b4bbf7ac653a733c181a8a2bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d26d0587abccb9835382a0b53faa7b9b1cd83e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/58cd7fdc8c1e6c7873acc08f190069fed88d1c12"
        },
        {
          "url": "https://git.kernel.org/stable/c/a033b86c7f7621fde31f0364af8986f43b44914f"
        },
        {
          "url": "https://git.kernel.org/stable/c/2acb2779b147decd300c117683d5a32ce61c75d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/49e92ba5ecd7d72ba369dde2ccff738edd028a47"
        },
        {
          "url": "https://git.kernel.org/stable/c/c23fb2c82267638f9d206cb96bb93e1f93ad7828"
        }
      ],
      "title": "ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49865",
    "datePublished": "2025-05-01T14:10:17.673Z",
    "dateReserved": "2025-05-01T14:05:17.237Z",
    "dateUpdated": "2026-05-11T19:08:14.487Z",
    "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.