Vulnerability-Lookup

BDU:2026-03710 (CVE-2022-49721)

Vulnerability from fstec – Published: 2026-03-25 – Updated: 2026-03-25 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции get_ftrace_plt() модуля arch/arm64/kernel/ftrace.c поддержки платформы ARM 64-бит ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции get_ftrace_plt() модуля arch/arm64/kernel/ftrace.c поддержки платформы ARM 64-бит ядра операционной системы Linux связана с некорректной зачисткой или освобождением ресурсов. 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 exhaustion

Incidents

Being clarified

Remediation

Software update

CWE

CWE-404 - Некорректная зачистка или освобождение ресурсов

Aliases

CVE-2022-49721, RHSA-2024:2394

References

12 references

URL
https://git.kernel.org/stable/c/dcecc96ed16f73417de5550f384e348c9d56f279
https://git.kernel.org/stable/c/bc28fde90937a920f7714ec4408269cac744f796
https://git.kernel.org/stable/c/db73aa9466338ec821ed2a0b01721fe4d06876b1
https://www.cve.org/CVERecord?id=CVE-2022-49721
https://lore.kernel.org/linux-cve-announce/2025022632-CVE-2022-49721-b74f@gregkh/
https://git.kernel.org/linus/a6253579977e4c6f7818eeb05bf2bc65678a7187
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.124
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.49
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.6
https://access.redhat.com/security/cve/cve-2022-49721
https://security-tracker.debian.org/tracker/CVE-2022-49721
https://ubuntu.com/security/CVE-2022-49721

Impacted products

4 products from 4 vendors

Vendors

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

Products

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

Versions

20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), от 5.16 до 5.18.5 включительно (Linux), от 5.5 до 5.10.123 включительно (Linux), от 5.11 до 5.15.48 включительно (Linux)

Product types

Operating system

Platforms

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 5.16 до 5.18.5 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.123 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.48 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/dcecc96ed16f73417de5550f384e348c9d56f279 https://git.kernel.org/stable/c/bc28fde90937a920f7714ec4408269cac744f796 https://git.kernel.org/stable/c/db73aa9466338ec821ed2a0b01721fe4d06876b1 https://git.kernel.org/linus/a6253579977e4c6f7818eeb05bf2bc65678a7187 Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/cve-2022-49721 Для программных продуктов Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2022-49721 Для программных продуктов Ubuntu: https://ubuntu.com/security/CVE-2022-49721

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., \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, Red Hat, Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), \u043e\u0442 5.16 \u0434\u043e 5.18.5 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.123 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.48 \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\u0414\u043b\u044f Linux:\nhttps://git.kernel.org/stable/c/dcecc96ed16f73417de5550f384e348c9d56f279\nhttps://git.kernel.org/stable/c/bc28fde90937a920f7714ec4408269cac744f796\nhttps://git.kernel.org/stable/c/db73aa9466338ec821ed2a0b01721fe4d06876b1\nhttps://git.kernel.org/linus/a6253579977e4c6f7818eeb05bf2bc65678a7187\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat Inc.:\nhttps://access.redhat.com/security/cve/cve-2022-49721\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 Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2022-49721\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 Ubuntu:\nhttps://ubuntu.com/security/CVE-2022-49721",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "15.06.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "25.03.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "25.03.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-03710",
  "\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-2022-49721, RHSA-2024:2394",
  "\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, Debian GNU/Linux, Red Hat Enterprise 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 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 5.18.5 \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 5.10.123 \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 5.15.48 \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 get_ftrace_plt() \u043c\u043e\u0434\u0443\u043b\u044f arch/arm64/kernel/ftrace.c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b ARM 64-\u0431\u0438\u0442 \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\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)",
  "\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 get_ftrace_plt() \u043c\u043e\u0434\u0443\u043b\u044f arch/arm64/kernel/ftrace.c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b ARM 64-\u0431\u0438\u0442 \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 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u0437\u0430\u0447\u0438\u0441\u0442\u043a\u043e\u0439 \u0438\u043b\u0438 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u0435\u043c \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432. \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://git.kernel.org/stable/c/dcecc96ed16f73417de5550f384e348c9d56f279\nhttps://git.kernel.org/stable/c/bc28fde90937a920f7714ec4408269cac744f796\nhttps://git.kernel.org/stable/c/db73aa9466338ec821ed2a0b01721fe4d06876b1\nhttps://www.cve.org/CVERecord?id=CVE-2022-49721\nhttps://lore.kernel.org/linux-cve-announce/2025022632-CVE-2022-49721-b74f@gregkh/\nhttps://git.kernel.org/linus/a6253579977e4c6f7818eeb05bf2bc65678a7187\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.124\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.49\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.6\nhttps://access.redhat.com/security/cve/cve-2022-49721\nhttps://security-tracker.debian.org/tracker/CVE-2022-49721\nhttps://ubuntu.com/security/CVE-2022-49721",
  "\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-404",
  "\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-2022-49721 (GCVE-0-2022-49721)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:24 – Updated: 2026-05-11 19:05

Title

arm64: ftrace: consistently handle PLTs.

Summary

In the Linux kernel, the following vulnerability has been resolved: arm64: ftrace: consistently handle PLTs. Sometimes it is necessary to use a PLT entry to call an ftrace trampoline. This is handled by ftrace_make_call() and ftrace_make_nop(), with each having *almost* identical logic, but this is not handled by ftrace_modify_call() since its introduction in commit: 3b23e4991fb66f6d ("arm64: implement ftrace with regs") Due to this, if we ever were to call ftrace_modify_call() for a callsite which requires a PLT entry for a trampoline, then either: a) If the old addr requires a trampoline, ftrace_modify_call() will use an out-of-range address to generate the 'old' branch instruction. This will result in warnings from aarch64_insn_gen_branch_imm() and ftrace_modify_code(), and no instructions will be modified. As ftrace_modify_call() will return an error, this will result in subsequent internal ftrace errors. b) If the old addr does not require a trampoline, but the new addr does, ftrace_modify_call() will use an out-of-range address to generate the 'new' branch instruction. This will result in warnings from aarch64_insn_gen_branch_imm(), and ftrace_modify_code() will replace the 'old' branch with a BRK. This will result in a kernel panic when this BRK is later executed. Practically speaking, case (a) is vastly more likely than case (b), and typically this will result in internal ftrace errors that don't necessarily affect the rest of the system. This can be demonstrated with an out-of-tree test module which triggers ftrace_modify_call(), e.g. | # insmod test_ftrace.ko | test_ftrace: Function test_function raw=0xffffb3749399201c, callsite=0xffffb37493992024 | branch_imm_common: offset out of range | branch_imm_common: offset out of range | ------------[ ftrace bug ]------------ | ftrace failed to modify | [<ffffb37493992024>] test_function+0x8/0x38 [test_ftrace] | actual: 1d:00:00:94 | Updating ftrace call site to call a different ftrace function | ftrace record flags: e0000002 | (2) R | expected tramp: ffffb374ae42ed54 | ------------[ cut here ]------------ | WARNING: CPU: 0 PID: 165 at kernel/trace/ftrace.c:2085 ftrace_bug+0x280/0x2b0 | Modules linked in: test_ftrace(+) | CPU: 0 PID: 165 Comm: insmod Not tainted 5.19.0-rc2-00002-g4d9ead8b45ce #13 | Hardware name: linux,dummy-virt (DT) | pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) | pc : ftrace_bug+0x280/0x2b0 | lr : ftrace_bug+0x280/0x2b0 | sp : ffff80000839ba00 | x29: ffff80000839ba00 x28: 0000000000000000 x27: ffff80000839bcf0 | x26: ffffb37493994180 x25: ffffb374b0991c28 x24: ffffb374b0d70000 | x23: 00000000ffffffea x22: ffffb374afcc33b0 x21: ffffb374b08f9cc8 | x20: ffff572b8462c000 x19: ffffb374b08f9000 x18: ffffffffffffffff | x17: 6c6c6163202c6331 x16: ffffb374ae5ad110 x15: ffffb374b0d51ee4 | x14: 0000000000000000 x13: 3435646532346561 x12: 3437336266666666 | x11: 203a706d61727420 x10: 6465746365707865 x9 : ffffb374ae5149e8 | x8 : 336266666666203a x7 : 706d617274206465 x6 : 00000000fffff167 | x5 : ffff572bffbc4a08 x4 : 00000000fffff167 x3 : 0000000000000000 | x2 : 0000000000000000 x1 : ffff572b84461e00 x0 : 0000000000000022 | Call trace: | ftrace_bug+0x280/0x2b0 | ftrace_replace_code+0x98/0xa0 | ftrace_modify_all_code+0xe0/0x144 | arch_ftrace_update_code+0x14/0x20 | ftrace_startup+0xf8/0x1b0 | register_ftrace_function+0x38/0x90 | test_ftrace_init+0xd0/0x1000 [test_ftrace] | do_one_initcall+0x50/0x2b0 | do_init_module+0x50/0x1f0 | load_module+0x17c8/0x1d64 | __do_sys_finit_module+0xa8/0x100 | __arm64_sys_finit_module+0x2c/0x3c | invoke_syscall+0x50/0x120 | el0_svc_common.constprop.0+0xdc/0x100 | do_el0_svc+0x3c/0xd0 | el0_svc+0x34/0xb0 | el0t_64_sync_handler+0xbc/0x140 | el0t_64_sync+0x18c/0x190 | ---[ end trace 0000000000000000 ]--- We can solve this by consistently determining whether to use a PLT entry for an address. Note that since (the earlier) commit: f1a54ae9 ---truncated---

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/bc28fde90937a920f…
https://git.kernel.org/stable/c/db73aa9466338ec82…
https://git.kernel.org/stable/c/dcecc96ed16f73417…
https://git.kernel.org/stable/c/a6253579977e4c6f7…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3b23e4991fb66f6d152f9055ede271a726ef9f21 , < bc28fde90937a920f7714ec4408269cac744f796 (git) Affected: 3b23e4991fb66f6d152f9055ede271a726ef9f21 , < db73aa9466338ec821ed2a0b01721fe4d06876b1 (git) Affected: 3b23e4991fb66f6d152f9055ede271a726ef9f21 , < dcecc96ed16f73417de5550f384e348c9d56f279 (git) Affected: 3b23e4991fb66f6d152f9055ede271a726ef9f21 , < a6253579977e4c6f7818eeb05bf2bc65678a7187 (git)
Linux	Linux	Affected: 5.5 Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.124 , ≤ 5.10.* (semver) Unaffected: 5.15.49 , ≤ 5.15.* (semver) Unaffected: 5.18.6 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kernel/ftrace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bc28fde90937a920f7714ec4408269cac744f796",
              "status": "affected",
              "version": "3b23e4991fb66f6d152f9055ede271a726ef9f21",
              "versionType": "git"
            },
            {
              "lessThan": "db73aa9466338ec821ed2a0b01721fe4d06876b1",
              "status": "affected",
              "version": "3b23e4991fb66f6d152f9055ede271a726ef9f21",
              "versionType": "git"
            },
            {
              "lessThan": "dcecc96ed16f73417de5550f384e348c9d56f279",
              "status": "affected",
              "version": "3b23e4991fb66f6d152f9055ede271a726ef9f21",
              "versionType": "git"
            },
            {
              "lessThan": "a6253579977e4c6f7818eeb05bf2bc65678a7187",
              "status": "affected",
              "version": "3b23e4991fb66f6d152f9055ede271a726ef9f21",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kernel/ftrace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.124",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.49",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.124",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.49",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.6",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: ftrace: consistently handle PLTs.\n\nSometimes it is necessary to use a PLT entry to call an ftrace\ntrampoline. This is handled by ftrace_make_call() and ftrace_make_nop(),\nwith each having *almost* identical logic, but this is not handled by\nftrace_modify_call() since its introduction in commit:\n\n  3b23e4991fb66f6d (\"arm64: implement ftrace with regs\")\n\nDue to this, if we ever were to call ftrace_modify_call() for a callsite\nwhich requires a PLT entry for a trampoline, then either:\n\na) If the old addr requires a trampoline, ftrace_modify_call() will use\n   an out-of-range address to generate the \u0027old\u0027 branch instruction.\n   This will result in warnings from aarch64_insn_gen_branch_imm() and\n   ftrace_modify_code(), and no instructions will be modified. As\n   ftrace_modify_call() will return an error, this will result in\n   subsequent internal ftrace errors.\n\nb) If the old addr does not require a trampoline, but the new addr does,\n   ftrace_modify_call() will use an out-of-range address to generate the\n   \u0027new\u0027 branch instruction. This will result in warnings from\n   aarch64_insn_gen_branch_imm(), and ftrace_modify_code() will replace\n   the \u0027old\u0027 branch with a BRK. This will result in a kernel panic when\n   this BRK is later executed.\n\nPractically speaking, case (a) is vastly more likely than case (b), and\ntypically this will result in internal ftrace errors that don\u0027t\nnecessarily affect the rest of the system. This can be demonstrated with\nan out-of-tree test module which triggers ftrace_modify_call(), e.g.\n\n| # insmod test_ftrace.ko\n| test_ftrace: Function test_function raw=0xffffb3749399201c, callsite=0xffffb37493992024\n| branch_imm_common: offset out of range\n| branch_imm_common: offset out of range\n| ------------[ ftrace bug ]------------\n| ftrace failed to modify\n| [\u003cffffb37493992024\u003e] test_function+0x8/0x38 [test_ftrace]\n|  actual:   1d:00:00:94\n| Updating ftrace call site to call a different ftrace function\n| ftrace record flags: e0000002\n|  (2) R\n|  expected tramp: ffffb374ae42ed54\n| ------------[ cut here ]------------\n| WARNING: CPU: 0 PID: 165 at kernel/trace/ftrace.c:2085 ftrace_bug+0x280/0x2b0\n| Modules linked in: test_ftrace(+)\n| CPU: 0 PID: 165 Comm: insmod Not tainted 5.19.0-rc2-00002-g4d9ead8b45ce #13\n| Hardware name: linux,dummy-virt (DT)\n| pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n| pc : ftrace_bug+0x280/0x2b0\n| lr : ftrace_bug+0x280/0x2b0\n| sp : ffff80000839ba00\n| x29: ffff80000839ba00 x28: 0000000000000000 x27: ffff80000839bcf0\n| x26: ffffb37493994180 x25: ffffb374b0991c28 x24: ffffb374b0d70000\n| x23: 00000000ffffffea x22: ffffb374afcc33b0 x21: ffffb374b08f9cc8\n| x20: ffff572b8462c000 x19: ffffb374b08f9000 x18: ffffffffffffffff\n| x17: 6c6c6163202c6331 x16: ffffb374ae5ad110 x15: ffffb374b0d51ee4\n| x14: 0000000000000000 x13: 3435646532346561 x12: 3437336266666666\n| x11: 203a706d61727420 x10: 6465746365707865 x9 : ffffb374ae5149e8\n| x8 : 336266666666203a x7 : 706d617274206465 x6 : 00000000fffff167\n| x5 : ffff572bffbc4a08 x4 : 00000000fffff167 x3 : 0000000000000000\n| x2 : 0000000000000000 x1 : ffff572b84461e00 x0 : 0000000000000022\n| Call trace:\n|  ftrace_bug+0x280/0x2b0\n|  ftrace_replace_code+0x98/0xa0\n|  ftrace_modify_all_code+0xe0/0x144\n|  arch_ftrace_update_code+0x14/0x20\n|  ftrace_startup+0xf8/0x1b0\n|  register_ftrace_function+0x38/0x90\n|  test_ftrace_init+0xd0/0x1000 [test_ftrace]\n|  do_one_initcall+0x50/0x2b0\n|  do_init_module+0x50/0x1f0\n|  load_module+0x17c8/0x1d64\n|  __do_sys_finit_module+0xa8/0x100\n|  __arm64_sys_finit_module+0x2c/0x3c\n|  invoke_syscall+0x50/0x120\n|  el0_svc_common.constprop.0+0xdc/0x100\n|  do_el0_svc+0x3c/0xd0\n|  el0_svc+0x34/0xb0\n|  el0t_64_sync_handler+0xbc/0x140\n|  el0t_64_sync+0x18c/0x190\n| ---[ end trace 0000000000000000 ]---\n\nWe can solve this by consistently determining whether to use a PLT entry\nfor an address.\n\nNote that since (the earlier) commit:\n\n  f1a54ae9\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:05:34.015Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bc28fde90937a920f7714ec4408269cac744f796"
        },
        {
          "url": "https://git.kernel.org/stable/c/db73aa9466338ec821ed2a0b01721fe4d06876b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/dcecc96ed16f73417de5550f384e348c9d56f279"
        },
        {
          "url": "https://git.kernel.org/stable/c/a6253579977e4c6f7818eeb05bf2bc65678a7187"
        }
      ],
      "title": "arm64: ftrace: consistently handle PLTs.",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49721",
    "datePublished": "2025-02-26T02:24:34.685Z",
    "dateReserved": "2025-02-26T02:21:30.446Z",
    "dateUpdated": "2026-05-11T19:05:34.015Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

RHSA-2024:2394

Vulnerability from csaf_redhat - Published: 2024-04-30 09:57 - Updated: 2026-09-11 09:26

Summary

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Severity

Important

Scope

341 vulnerabilities in this advisory.

Open the full advisory

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.

Action not permitted

BDU:2026-03710 (CVE-2022-49721)

CVE-2022-49721 (GCVE-0-2022-49721)

RHSA-2024:2394

Tags

Sightings

Nomenclature

Related by attack behaviour