Vulnerability-Lookup

BDU:2026-01488 (CVE-2022-50673)

Vulnerability from fstec – Published: 2026-02-09 – Updated: 2026-07-07 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции ext4_truncate() модуля fs/ext4/inode.c файловой системы Ext4 ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Summary

Уязвимость функции ext4_truncate() модуля fs/ext4/inode.c файловой системы Ext4 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

6.0 (Medium) CVSS 2.0


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

7.0 (High) CVSS 3.1


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-416 - Использование после освобождения
CWE-825 - Разыменование указателя с истекшим сроком действия

Aliases

CVE-2022-50673

References

19 references

URL
https://www.cve.org/CVERecord?id=CVE-2022-50673
https://git.kernel.org/stable/c/7f801a1593cb957f73659732836b2dafbdfc7709
https://git.kernel.org/stable/c/026a4490b5381229a30f23d073b58e8e35ee6858
https://git.kernel.org/stable/c/7223d5e75f26352354ea2c0ccf8b579821b52adf
https://git.kernel.org/stable/c/cf0e0817b0f925b70d101d7014ea81b7094e1159
https://git.kernel.org/stable/c/c2bdbd4c69308835d1b6f6ba74feeccbfe113478
https://git.kernel.org/stable/c/7908b8a541b1578cc61b4da7f19b604a931441da
https://git.kernel.org/linus/a71248b1accb2b42e4980afef4fa4a27fa0e36f5
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.87
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.18
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.4
https://lore.kernel.org/linux-cve-announce/2025120947-CVE-2022-50673-f920@gregkh/
https://security-tracker.debian.org/tracker/CVE-2022-50673
https://access.redhat.com/security/cve/cve-2022-50673
https://abf.rosa.ru/advisories/ROSA-SA-2026-3261
https://abf.rosa.ru/advisories/ROSA-SA-2026-3262

Impacted products

5 products from 4 vendors

Vendors

Red Hat, Inc., Сообщество свободного программного обеспечения, АО «НТЦ ИТ РОСА»

Products

Red Hat Enterprise Linux, Debian GNU/Linux, Linux, ROSA Virtualization (запись в едином реестре российских программ №5091), ROSA Virtualization 3.0 (запись в едином реестре российских программ №21308)

Versions

7 (Red Hat Enterprise Linux), 8 (Red Hat Enterprise Linux), 11 (Debian GNU/Linux), 9 (Red Hat Enterprise Linux), от 4.20 до 5.4.228 включительно (Linux), от 5.5 до 5.10.162 включительно (Linux), от 5.11 до 5.15.86 включительно (Linux), от 5.16 до 6.0.17 включительно (Linux), 2.1 (ROSA Virtualization), 3.0 (ROSA Virtualization 3.0), от 6.1 до 6.1.3 включительно (Linux), от 4.10 до 4.19.269 включительно (Linux)

Product types

Operating system, Virtualization software

Platforms

Red Hat, Inc. Red Hat Enterprise Linux 7, Inc. Red Hat Enterprise Linux 8, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Inc. Red Hat Enterprise Linux 9, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.228 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.162 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.86 включительно, Сообщество свободного программного обеспечения Linux от 5.16 до 6.0.17 включительно, АО «НТЦ ИТ РОСА» ROSA Virtualization 2.1 (запись в едином реестре российских программ №5091), АО «НТЦ ИТ РОСА» ROSA Virtualization 3.0 3.0 (запись в едином реестре российских программ №21308), Сообщество свободного программного обеспечения Linux от 6.1 до 6.1.3 включительно, Сообщество свободного программного обеспечения Linux от 4.10 до 4.19.269 включительно

Mitigations

В условиях отсутствия обновлений безопасности от производителя рекомендуется придерживаться "Рекомендаций по безопасной настройке операционных систем LINUX", изложенных в методическом документе ФСТЭК России, утверждённом 25 декабря 2022 года. Использование рекомендаций: Для Linux: https://lore.kernel.org/linux-cve-announce/2025120947-CVE-2022-50673-f920@gregkh/ https://git.kernel.org/stable/c/7f801a1593cb957f73659732836b2dafbdfc7709 https://git.kernel.org/stable/c/026a4490b5381229a30f23d073b58e8e35ee6858 https://git.kernel.org/stable/c/7223d5e75f26352354ea2c0ccf8b579821b52adf https://git.kernel.org/stable/c/cf0e0817b0f925b70d101d7014ea81b7094e1159 https://git.kernel.org/stable/c/c2bdbd4c69308835d1b6f6ba74feeccbfe113478 https://git.kernel.org/stable/c/7908b8a541b1578cc61b4da7f19b604a931441da https://git.kernel.org/linus/a71248b1accb2b42e4980afef4fa4a27fa0e36f5 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.87 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.18 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.4 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2022-50673 Для продуктов Red Hat Inc.: https://access.redhat.com/security/cve/cve-2022-50673 Для системы управления средой виртуализации «ROSA Virtualization»: https://abf.rosa.ru/advisories/ROSA-SA-2026-3261 Для программной системы управления средой виртуализации с подсистемой безагентного резервного копирования виртуальных машин «ROSA Virtualization 3.0»: https://abf.rosa.ru/advisories/ROSA-SA-2026-3262

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:H/Au:S/C:C/I:C/A:C",
  "CVSS 3.0": "AV:L/AC:H/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": "Red Hat, Inc., \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f, \u0410\u041e \u00ab\u041d\u0422\u0426 \u0418\u0422 \u0420\u041e\u0421\u0410\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "7 (Red Hat Enterprise Linux), 8 (Red Hat Enterprise Linux), 11 (Debian GNU/Linux), 9 (Red Hat Enterprise Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.228 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.162 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.86 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.16 \u0434\u043e 6.0.17 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), 2.1 (ROSA Virtualization), 3.0 (ROSA Virtualization 3.0), \u043e\u0442 6.1 \u0434\u043e 6.1.3 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.10 \u0434\u043e 4.19.269 \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\n\n\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\n\n\u0414\u043b\u044f Linux:\nhttps://lore.kernel.org/linux-cve-announce/2025120947-CVE-2022-50673-f920@gregkh/\nhttps://git.kernel.org/stable/c/7f801a1593cb957f73659732836b2dafbdfc7709\nhttps://git.kernel.org/stable/c/026a4490b5381229a30f23d073b58e8e35ee6858\nhttps://git.kernel.org/stable/c/7223d5e75f26352354ea2c0ccf8b579821b52adf\nhttps://git.kernel.org/stable/c/cf0e0817b0f925b70d101d7014ea81b7094e1159\nhttps://git.kernel.org/stable/c/c2bdbd4c69308835d1b6f6ba74feeccbfe113478\nhttps://git.kernel.org/stable/c/7908b8a541b1578cc61b4da7f19b604a931441da\nhttps://git.kernel.org/linus/a71248b1accb2b42e4980afef4fa4a27fa0e36f5\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.87\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.18\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.4\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2022-50673\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat Inc.:\nhttps://access.redhat.com/security/cve/cve-2022-50673\n\n\u0414\u043b\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0440\u0435\u0434\u043e\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u00abROSA Virtualization\u00bb: https://abf.rosa.ru/advisories/ROSA-SA-2026-3261\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0440\u0435\u0434\u043e\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u043e\u0439 \u0431\u0435\u0437\u0430\u0433\u0435\u043d\u0442\u043d\u043e\u0433\u043e \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u043c\u0430\u0448\u0438\u043d \u00abROSA Virtualization 3.0\u00bb: https://abf.rosa.ru/advisories/ROSA-SA-2026-3262",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "08.12.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "07.07.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "09.02.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-01488",
  "\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-2022-50673",
  "\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": "Red Hat Enterprise Linux, Debian GNU/Linux, Linux, ROSA Virtualization (\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 \u21165091), ROSA Virtualization 3.0 (\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 \u211621308)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Red Hat, Inc. Red Hat Enterprise Linux 7 , Red Hat, Inc. Red Hat Enterprise Linux 8 , \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 , Red Hat, Inc. Red Hat Enterprise Linux 9 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 4.20 \u0434\u043e 5.4.228 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.5 \u0434\u043e 5.10.162 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.11 \u0434\u043e 5.15.86 \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 6.0.17 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0410\u041e \u00ab\u041d\u0422\u0426 \u0418\u0422 \u0420\u041e\u0421\u0410\u00bb ROSA Virtualization 2.1  (\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 \u21165091), \u0410\u041e \u00ab\u041d\u0422\u0426 \u0418\u0422 \u0420\u041e\u0421\u0410\u00bb ROSA Virtualization 3.0 3.0  (\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 \u211621308), \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 6.1 \u0434\u043e 6.1.3 \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 4.10 \u0434\u043e 4.19.269 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 ext4_truncate() \u043c\u043e\u0434\u0443\u043b\u044f fs/ext4/inode.c \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Ext4 \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), \u0420\u0430\u0437\u044b\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f \u0441 \u0438\u0441\u0442\u0435\u043a\u0448\u0438\u043c \u0441\u0440\u043e\u043a\u043e\u043c \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f (CWE-825)",
  "\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 ext4_truncate() \u043c\u043e\u0434\u0443\u043b\u044f fs/ext4/inode.c \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Ext4 \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://www.cve.org/CVERecord?id=CVE-2022-50673\nhttps://git.kernel.org/stable/c/7f801a1593cb957f73659732836b2dafbdfc7709\nhttps://git.kernel.org/stable/c/026a4490b5381229a30f23d073b58e8e35ee6858\nhttps://git.kernel.org/stable/c/7223d5e75f26352354ea2c0ccf8b579821b52adf\nhttps://git.kernel.org/stable/c/cf0e0817b0f925b70d101d7014ea81b7094e1159\nhttps://git.kernel.org/stable/c/c2bdbd4c69308835d1b6f6ba74feeccbfe113478\nhttps://git.kernel.org/stable/c/7908b8a541b1578cc61b4da7f19b604a931441da\nhttps://git.kernel.org/linus/a71248b1accb2b42e4980afef4fa4a27fa0e36f5\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.87\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.18\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.4\nhttps://lore.kernel.org/linux-cve-announce/2025120947-CVE-2022-50673-f920@gregkh/\nhttps://security-tracker.debian.org/tracker/CVE-2022-50673\nhttps://access.redhat.com/security/cve/cve-2022-50673\nhttps://abf.rosa.ru/advisories/ROSA-SA-2026-3261\nhttps://abf.rosa.ru/advisories/ROSA-SA-2026-3262",
  "\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, \u041f\u041e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438/\u041f\u041e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e-\u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-416, CWE-825",
  "\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)\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)"
}

CVE-2022-50673 (GCVE-0-2022-50673)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2026-08-05 08:59

Title

ext4: fix use-after-free in ext4_orphan_cleanup

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in ext4_orphan_cleanup I caught a issue as follows: ================================================================== BUG: KASAN: use-after-free in __list_add_valid+0x28/0x1a0 Read of size 8 at addr ffff88814b13f378 by task mount/710 CPU: 1 PID: 710 Comm: mount Not tainted 6.1.0-rc3-next #370 Call Trace: <TASK> dump_stack_lvl+0x73/0x9f print_report+0x25d/0x759 kasan_report+0xc0/0x120 __asan_load8+0x99/0x140 __list_add_valid+0x28/0x1a0 ext4_orphan_cleanup+0x564/0x9d0 [ext4] __ext4_fill_super+0x48e2/0x5300 [ext4] ext4_fill_super+0x19f/0x3a0 [ext4] get_tree_bdev+0x27b/0x450 ext4_get_tree+0x19/0x30 [ext4] vfs_get_tree+0x49/0x150 path_mount+0xaae/0x1350 do_mount+0xe2/0x110 __x64_sys_mount+0xf0/0x190 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd </TASK> [...] ================================================================== Above issue may happen as follows: ------------------------------------- ext4_fill_super ext4_orphan_cleanup --- loop1: assume last_orphan is 12 --- list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan) ext4_truncate --> return 0 ext4_inode_attach_jinode --> return -ENOMEM iput(inode) --> free inode<12> --- loop2: last_orphan is still 12 --- list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan); // use inode<12> and trigger UAF To solve this issue, we need to propagate the return value of ext4_inode_attach_jinode() appropriately.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-16 15:48 UTC

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/7f801a1593cb957f7…
https://git.kernel.org/stable/c/026a4490b5381229a…
https://git.kernel.org/stable/c/7223d5e75f2635235…
https://git.kernel.org/stable/c/cf0e0817b0f925b70…
https://git.kernel.org/stable/c/c2bdbd4c69308835d…
https://git.kernel.org/stable/c/7908b8a541b1578cc…
https://git.kernel.org/stable/c/a71248b1accb2b42e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < 7f801a1593cb957f73659732836b2dafbdfc7709 (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < 026a4490b5381229a30f23d073b58e8e35ee6858 (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < 7223d5e75f26352354ea2c0ccf8b579821b52adf (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < cf0e0817b0f925b70d101d7014ea81b7094e1159 (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < c2bdbd4c69308835d1b6f6ba74feeccbfe113478 (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < 7908b8a541b1578cc61b4da7f19b604a931441da (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < a71248b1accb2b42e4980afef4fa4a27fa0e36f5 (git)
Linux	Linux	Affected: 4.10 Unaffected: 0 , < 4.10 (semver) Unaffected: 4.19.270 , ≤ 4.19.* (semver) Unaffected: 5.4.229 , ≤ 5.4.* (semver) Unaffected: 5.10.163 , ≤ 5.10.* (semver) Unaffected: 5.15.87 , ≤ 5.15.* (semver) Unaffected: 6.0.18 , ≤ 6.0.* (semver) Unaffected: 6.1.4 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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                "id": "CVE-2022-50673",
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                "timestamp": "2026-06-16T15:48:47.172262Z",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix use-after-free in ext4_orphan_cleanup\n\nI caught a issue as follows:\n==================================================================\n BUG: KASAN: use-after-free in __list_add_valid+0x28/0x1a0\n Read of size 8 at addr ffff88814b13f378 by task mount/710\n\n CPU: 1 PID: 710 Comm: mount Not tainted 6.1.0-rc3-next #370\n Call Trace:\n  \u003cTASK\u003e\n  dump_stack_lvl+0x73/0x9f\n  print_report+0x25d/0x759\n  kasan_report+0xc0/0x120\n  __asan_load8+0x99/0x140\n  __list_add_valid+0x28/0x1a0\n  ext4_orphan_cleanup+0x564/0x9d0 [ext4]\n  __ext4_fill_super+0x48e2/0x5300 [ext4]\n  ext4_fill_super+0x19f/0x3a0 [ext4]\n  get_tree_bdev+0x27b/0x450\n  ext4_get_tree+0x19/0x30 [ext4]\n  vfs_get_tree+0x49/0x150\n  path_mount+0xaae/0x1350\n  do_mount+0xe2/0x110\n  __x64_sys_mount+0xf0/0x190\n  do_syscall_64+0x35/0x80\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n  \u003c/TASK\u003e\n [...]\n==================================================================\n\nAbove issue may happen as follows:\n-------------------------------------\next4_fill_super\n  ext4_orphan_cleanup\n   --- loop1: assume last_orphan is 12 ---\n    list_add(\u0026EXT4_I(inode)-\u003ei_orphan, \u0026EXT4_SB(sb)-\u003es_orphan)\n    ext4_truncate --\u003e return 0\n      ext4_inode_attach_jinode --\u003e return -ENOMEM\n    iput(inode) --\u003e free inode\u003c12\u003e\n   --- loop2: last_orphan is still 12 ---\n    list_add(\u0026EXT4_I(inode)-\u003ei_orphan, \u0026EXT4_SB(sb)-\u003es_orphan);\n    // use inode\u003c12\u003e and trigger UAF\n\nTo solve this issue, we need to propagate the return value of\next4_inode_attach_jinode() appropriately."
        }
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
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              "lang": "en",
              "value": "AV:L - The bug is reached only through the local VFS mount path (mount \u2192 ext4_fill_super \u2192 ext4_orphan_cleanup \u2192 ext4_process_orphan \u2192 ext4_truncate); it is not reachable from network protocol handlers or packet processing.\nAC:L - An attacker who crafts an ext4 image with truncate orphans (nlink\u003e0, non-block-aligned i_size) controls the on-disk state that forces the attach_jinode path; on memory-constrained deployments (Android/embedded/IoT) that ENOMEM is reliably inducible, after which orphan cleanup loops on the same inode and the UAF is deterministic.\nPR:N - No privileges on the target are required\u2014only a malicious ext4 image (USB/SD, disk image, or media presented to udisks/Android vold automount); the attacker need not hold CAP_SYS_ADMIN on the victim host.\nUI:R - ext4 lacks FS_USERNS_MOUNT and mount_capable() requires capable(CAP_SYS_ADMIN) in the init user namespace, so a user or automount daemon must mount the attacker-supplied image for the orphan-cleanup UAF to run.\nS:U - Impact is a host-kernel heap use-after-free during local mount/orphan cleanup within the same OS security authority; there is no VM escape, IOMMU bypass, or other cross-boundary effect.\nC:H - This is a confirmed KASAN use-after-free of an ext4 inode on the orphan list; per UAF guidance, reclaim of the freed object enables arbitrary kernel memory disclosure primitives.\nI:H - The UAF corrupts the orphan list via list_add on a freed inode and enables heap spraying/arbitrary write and control-flow hijack primitives, so integrity impact is High.\nA:H - The KASAN report shows a kernel oops on the freed inode during orphan cleanup, and the stuck s_last_orphan loop can hang or crash the mount path, yielding High availability impact."
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        "dateUpdated": "2026-08-05T08:59:21.383Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/a71248b1accb2b42e4980afef4fa4a27fa0e36f5"
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      "title": "ext4: fix use-after-free in ext4_orphan_cleanup",
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    "cveId": "CVE-2022-50673",
    "datePublished": "2025-12-09T01:29:25.220Z",
    "dateReserved": "2025-12-09T01:26:45.991Z",
    "dateUpdated": "2026-08-05T08:59:21.383Z",
    "state": "PUBLISHED"
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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.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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