Vulnerability-Lookup

BDU:2025-07469

Vulnerability from fstec - Published: 30.11.2022

Title

Уязвимость функции retract_page_tables() модуля mm/khugepaged.c подсистемы управления памятью ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Description

Уязвимость функции retract_page_tables() модуля mm/khugepaged.c подсистемы управления памятью ядра операционной системы Linux связана с повторным использованием ранее освобожденной памяти. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Severity


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

Vendor

Сообщество свободного программного обеспечения, ООО «Открытая мобильная платформа»

Software Name

Linux, ОС Аврора (запись в едином реестре российских программ №1543)

Software Version

от 4.10 до 4.14.302 включительно (Linux), от 4.15 до 4.19.269 включительно (Linux), от 5.5 до 5.10.158 включительно (Linux), от 5.11 до 5.15.82 включительно (Linux), от 5.16 до 6.0.12 включительно (Linux), от 4.20 до 5.4.226 включительно (Linux), от 4.8 до 4.9.336 включительно (Linux), до 5.1.5 включительно (ОС Аврора)

Possible 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/f268f6cf875f3220afc77bdd0bf1bb136eb54db9 https://git.kernel.org/stable/c/5450535901d89a5dcca5fbbc59a24fe89caeb465 https://git.kernel.org/stable/c/5ffc2a75534d9d74d49760f983f8eb675fa63d69 https://git.kernel.org/stable/c/275c626c131cfe141beeb6c575e31fa53d32da19 https://git.kernel.org/stable/c/ff2a1a6f869650aec99e9d070b5ab625bfbc5bc3 https://git.kernel.org/stable/c/c23105673228c349739e958fa33955ed8faddcaf https://git.kernel.org/stable/c/7f445ca2e0e59c7971d0b7b853465e50844ab596 https://git.kernel.org/stable/c/1a3f8c6cd29d9078cc81b29d39d0e9ae1d6a03c3 https://lore.kernel.org/linux-cve-announce/2024102148-CVE-2022-48991-3987@gregkh/ https://git.kernel.org/linus/f268f6cf875f3220afc77bdd0bf1bb136eb54db9 https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1&id=7f445ca2e0e59c7971d0b7b853465e50844ab596 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.337 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.303 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.227 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.159 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.83 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13 Для ОС Аврора: https://cve.omp.ru/bb30515

Reference

https://git.kernel.org/stable/c/f268f6cf875f3220afc77bdd0bf1bb136eb54db9 https://git.kernel.org/stable/c/5450535901d89a5dcca5fbbc59a24fe89caeb465 https://git.kernel.org/stable/c/5ffc2a75534d9d74d49760f983f8eb675fa63d69 https://git.kernel.org/stable/c/275c626c131cfe141beeb6c575e31fa53d32da19 https://git.kernel.org/stable/c/ff2a1a6f869650aec99e9d070b5ab625bfbc5bc3 https://git.kernel.org/stable/c/c23105673228c349739e958fa33955ed8faddcaf https://git.kernel.org/stable/c/7f445ca2e0e59c7971d0b7b853465e50844ab596 https://git.kernel.org/stable/c/1a3f8c6cd29d9078cc81b29d39d0e9ae1d6a03c3 https://www.cve.org/CVERecord?id=CVE-2022-48991 https://lore.kernel.org/linux-cve-announce/2024102148-CVE-2022-48991-3987@gregkh/ https://git.kernel.org/linus/f268f6cf875f3220afc77bdd0bf1bb136eb54db9 https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1&id=7f445ca2e0e59c7971d0b7b853465e50844ab596 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.337 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.303 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.227 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.159 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.83 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13 https://cve.omp.ru/bb30515

CWE

CWE-416

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:C/I:C/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "\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, \u041e\u041e\u041e \u00ab\u041e\u0442\u043a\u0440\u044b\u0442\u0430\u044f \u043c\u043e\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u043e\u0442 4.10 \u0434\u043e 4.14.302 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.269 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.158 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.82 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.16 \u0434\u043e 6.0.12 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.226 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.8 \u0434\u043e 4.9.336 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u0434\u043e 5.1.5 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (\u041e\u0421 \u0410\u0432\u0440\u043e\u0440\u0430)",
  "\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/f268f6cf875f3220afc77bdd0bf1bb136eb54db9\nhttps://git.kernel.org/stable/c/5450535901d89a5dcca5fbbc59a24fe89caeb465\nhttps://git.kernel.org/stable/c/5ffc2a75534d9d74d49760f983f8eb675fa63d69\nhttps://git.kernel.org/stable/c/275c626c131cfe141beeb6c575e31fa53d32da19\nhttps://git.kernel.org/stable/c/ff2a1a6f869650aec99e9d070b5ab625bfbc5bc3\nhttps://git.kernel.org/stable/c/c23105673228c349739e958fa33955ed8faddcaf\nhttps://git.kernel.org/stable/c/7f445ca2e0e59c7971d0b7b853465e50844ab596\nhttps://git.kernel.org/stable/c/1a3f8c6cd29d9078cc81b29d39d0e9ae1d6a03c3\nhttps://lore.kernel.org/linux-cve-announce/2024102148-CVE-2022-48991-3987@gregkh/\nhttps://git.kernel.org/linus/f268f6cf875f3220afc77bdd0bf1bb136eb54db9\nhttps://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1\u0026id=7f445ca2e0e59c7971d0b7b853465e50844ab596\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.337\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.303\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.227\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.159\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.83\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13\n\n\u0414\u043b\u044f \u041e\u0421 \u0410\u0432\u0440\u043e\u0440\u0430: https://cve.omp.ru/bb30515",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "30.11.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "20.01.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "25.06.2025",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2025-07469",
  "\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-2022-48991",
  "\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": "Linux, \u041e\u0421 \u0410\u0432\u0440\u043e\u0440\u0430 (\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 \u21161543)",
  "\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": "\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 4.14.302 \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 4.19.269 \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 5.10.158 \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 5.15.82 \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 6.0.12 \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 5.4.226 \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 4.8 \u0434\u043e 4.9.336 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u041e\u041e\u041e \u00ab\u041e\u0442\u043a\u0440\u044b\u0442\u0430\u044f \u043c\u043e\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430\u00bb \u041e\u0421 \u0410\u0432\u0440\u043e\u0440\u0430 \u0434\u043e 5.1.5 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e  (\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 \u21161543)",
  "\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 retract_page_tables() \u043c\u043e\u0434\u0443\u043b\u044f mm/khugepaged.c \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u044c\u044e \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f (CWE-416)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 retract_page_tables() \u043c\u043e\u0434\u0443\u043b\u044f mm/khugepaged.c \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u044c\u044e \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u044b\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0440\u0430\u043d\u0435\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://git.kernel.org/stable/c/f268f6cf875f3220afc77bdd0bf1bb136eb54db9\nhttps://git.kernel.org/stable/c/5450535901d89a5dcca5fbbc59a24fe89caeb465\nhttps://git.kernel.org/stable/c/5ffc2a75534d9d74d49760f983f8eb675fa63d69\nhttps://git.kernel.org/stable/c/275c626c131cfe141beeb6c575e31fa53d32da19\nhttps://git.kernel.org/stable/c/ff2a1a6f869650aec99e9d070b5ab625bfbc5bc3\nhttps://git.kernel.org/stable/c/c23105673228c349739e958fa33955ed8faddcaf\nhttps://git.kernel.org/stable/c/7f445ca2e0e59c7971d0b7b853465e50844ab596\nhttps://git.kernel.org/stable/c/1a3f8c6cd29d9078cc81b29d39d0e9ae1d6a03c3\nhttps://www.cve.org/CVERecord?id=CVE-2022-48991\nhttps://lore.kernel.org/linux-cve-announce/2024102148-CVE-2022-48991-3987@gregkh/\nhttps://git.kernel.org/linus/f268f6cf875f3220afc77bdd0bf1bb136eb54db9\nhttps://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1\u0026id=7f445ca2e0e59c7971d0b7b853465e50844ab596\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.337\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.303\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.227\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.159\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.83\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13\nhttps://cve.omp.ru/bb30515",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-416",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 6,8)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)"
}

CVE-2022-48991 (GCVE-0-2022-48991)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:06 – Updated: 2026-05-11 18:51

Title

mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths Any codepath that zaps page table entries must invoke MMU notifiers to ensure that secondary MMUs (like KVM) don't keep accessing pages which aren't mapped anymore. Secondary MMUs don't hold their own references to pages that are mirrored over, so failing to notify them can lead to page use-after-free. I'm marking this as addressing an issue introduced in commit f3f0e1d2150b ("khugepaged: add support of collapse for tmpfs/shmem pages"), but most of the security impact of this only came in commit 27e1f8273113 ("khugepaged: enable collapse pmd for pte-mapped THP"), which actually omitted flushes for the removal of present PTEs, not just for the removal of empty page tables.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/275c626c131cfe141…
https://git.kernel.org/stable/c/c23105673228c3497…
https://git.kernel.org/stable/c/ff2a1a6f869650aec…
https://git.kernel.org/stable/c/5ffc2a75534d9d74d…
https://git.kernel.org/stable/c/7f445ca2e0e59c797…
https://git.kernel.org/stable/c/1a3f8c6cd29d9078c…
https://git.kernel.org/stable/c/5450535901d89a5dc…
https://git.kernel.org/stable/c/f268f6cf875f3220a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 , < 275c626c131cfe141beeb6c575e31fa53d32da19 (git) Affected: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 , < c23105673228c349739e958fa33955ed8faddcaf (git) Affected: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 , < ff2a1a6f869650aec99e9d070b5ab625bfbc5bc3 (git) Affected: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 , < 5ffc2a75534d9d74d49760f983f8eb675fa63d69 (git) Affected: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 , < 7f445ca2e0e59c7971d0b7b853465e50844ab596 (git) Affected: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 , < 1a3f8c6cd29d9078cc81b29d39d0e9ae1d6a03c3 (git) Affected: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 , < 5450535901d89a5dcca5fbbc59a24fe89caeb465 (git) Affected: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 , < f268f6cf875f3220afc77bdd0bf1bb136eb54db9 (git)
Linux	Linux	Affected: 4.8 Unaffected: 0 , < 4.8 (semver) Unaffected: 4.9.337 , ≤ 4.9.* (semver) Unaffected: 4.14.303 , ≤ 4.14.* (semver) Unaffected: 4.19.270 , ≤ 4.19.* (semver) Unaffected: 5.4.227 , ≤ 5.4.* (semver) Unaffected: 5.10.159 , ≤ 5.10.* (semver) Unaffected: 5.15.83 , ≤ 5.15.* (semver) Unaffected: 6.0.13 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-48991",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:16:32.481668Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:18:42.186Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/khugepaged.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "275c626c131cfe141beeb6c575e31fa53d32da19",
              "status": "affected",
              "version": "f3f0e1d2150b2b99da2cbdfaad000089efe9bf30",
              "versionType": "git"
            },
            {
              "lessThan": "c23105673228c349739e958fa33955ed8faddcaf",
              "status": "affected",
              "version": "f3f0e1d2150b2b99da2cbdfaad000089efe9bf30",
              "versionType": "git"
            },
            {
              "lessThan": "ff2a1a6f869650aec99e9d070b5ab625bfbc5bc3",
              "status": "affected",
              "version": "f3f0e1d2150b2b99da2cbdfaad000089efe9bf30",
              "versionType": "git"
            },
            {
              "lessThan": "5ffc2a75534d9d74d49760f983f8eb675fa63d69",
              "status": "affected",
              "version": "f3f0e1d2150b2b99da2cbdfaad000089efe9bf30",
              "versionType": "git"
            },
            {
              "lessThan": "7f445ca2e0e59c7971d0b7b853465e50844ab596",
              "status": "affected",
              "version": "f3f0e1d2150b2b99da2cbdfaad000089efe9bf30",
              "versionType": "git"
            },
            {
              "lessThan": "1a3f8c6cd29d9078cc81b29d39d0e9ae1d6a03c3",
              "status": "affected",
              "version": "f3f0e1d2150b2b99da2cbdfaad000089efe9bf30",
              "versionType": "git"
            },
            {
              "lessThan": "5450535901d89a5dcca5fbbc59a24fe89caeb465",
              "status": "affected",
              "version": "f3f0e1d2150b2b99da2cbdfaad000089efe9bf30",
              "versionType": "git"
            },
            {
              "lessThan": "f268f6cf875f3220afc77bdd0bf1bb136eb54db9",
              "status": "affected",
              "version": "f3f0e1d2150b2b99da2cbdfaad000089efe9bf30",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/khugepaged.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.8"
            },
            {
              "lessThan": "4.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.337",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.303",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.227",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.83",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.13",
              "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": "4.9.337",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.303",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.270",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.227",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.159",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.83",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.13",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/khugepaged: invoke MMU notifiers in shmem/file collapse paths\n\nAny codepath that zaps page table entries must invoke MMU notifiers to\nensure that secondary MMUs (like KVM) don\u0027t keep accessing pages which\naren\u0027t mapped anymore.  Secondary MMUs don\u0027t hold their own references to\npages that are mirrored over, so failing to notify them can lead to page\nuse-after-free.\n\nI\u0027m marking this as addressing an issue introduced in commit f3f0e1d2150b\n(\"khugepaged: add support of collapse for tmpfs/shmem pages\"), but most of\nthe security impact of this only came in commit 27e1f8273113 (\"khugepaged:\nenable collapse pmd for pte-mapped THP\"), which actually omitted flushes\nfor the removal of present PTEs, not just for the removal of empty page\ntables."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:51:06.742Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/275c626c131cfe141beeb6c575e31fa53d32da19"
        },
        {
          "url": "https://git.kernel.org/stable/c/c23105673228c349739e958fa33955ed8faddcaf"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff2a1a6f869650aec99e9d070b5ab625bfbc5bc3"
        },
        {
          "url": "https://git.kernel.org/stable/c/5ffc2a75534d9d74d49760f983f8eb675fa63d69"
        },
        {
          "url": "https://git.kernel.org/stable/c/7f445ca2e0e59c7971d0b7b853465e50844ab596"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a3f8c6cd29d9078cc81b29d39d0e9ae1d6a03c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/5450535901d89a5dcca5fbbc59a24fe89caeb465"
        },
        {
          "url": "https://git.kernel.org/stable/c/f268f6cf875f3220afc77bdd0bf1bb136eb54db9"
        }
      ],
      "title": "mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48991",
    "datePublished": "2024-10-21T20:06:08.312Z",
    "dateReserved": "2024-08-22T01:27:53.636Z",
    "dateUpdated": "2026-05-11T18:51:06.742Z",
    "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.

Action not permitted

BDU:2025-07469

CVE-2022-48991 (GCVE-0-2022-48991)

Tags

Sightings

Nomenclature