Vulnerability-Lookup

BDU:2025-14148

Vulnerability from fstec - Published: 28.10.2024

Title

Уязвимость функции walk_system_ram_res_rev() модуля kernel/resource.c ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Description

Уязвимость функции walk_system_ram_res_rev() модуля kernel/resource.c ядра операционной системы Linux связана с неправильным контролем идентификаторов ресурсов («внедрение ресурсов»). Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании

Severity


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

Vendor

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

Software Name

Ubuntu, Red Hat Enterprise Linux, Fedora, Linux

Software Version

22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), 41 (Fedora), 24.04 LTS (Ubuntu), от 6.8 до 6.11.6 включительно (Linux)

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://lore.kernel.org/linux-cve-announce/2024111922-CVE-2024-50303-2bd7@gregkh/ https://git.kernel.org/stable/c/dc9031b7919bd346514ea9a720f433b8daf3970d https://git.kernel.org/linus/b125a0def25a082ae944c9615208bf359abdb61c Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/cve-2024-50303 Для Ubuntu: https://ubuntu.com/security/CVE-2024-50303 Для Fedora: https://bugzilla.redhat.com/show_bug.cgi?id=2327468

Reference

https://git.kernel.org/stable/c/dc9031b7919bd346514ea9a720f433b8daf3970d https://www.cve.org/CVERecord?id=CVE-2024-50303 https://lore.kernel.org/linux-cve-announce/2024111922-CVE-2024-50303-2bd7@gregkh/ https://git.kernel.org/linus/b125a0def25a082ae944c9615208bf359abdb61c https://ubuntu.com/security/notices/USN-7276-1 https://ubuntu.com/security/notices/USN-7277-1 https://ubuntu.com/security/notices/USN-7310-1 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.7 https://bugzilla.redhat.com/show_bug.cgi?id=2327468 https://ubuntu.com/security/CVE-2024-50303 https://access.redhat.com/security/cve/cve-2024-50303

CWE

CWE-99

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:N/I:N/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Canonical Ltd., Red Hat, Inc., Fedora Project, \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), 41 (Fedora), 24.04 LTS (Ubuntu), \u043e\u0442 6.8 \u0434\u043e 6.11.6 \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/2024111922-CVE-2024-50303-2bd7@gregkh/\nhttps://git.kernel.org/stable/c/dc9031b7919bd346514ea9a720f433b8daf3970d\nhttps://git.kernel.org/linus/b125a0def25a082ae944c9615208bf359abdb61c\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-2024-50303\n\n\u0414\u043b\u044f Ubuntu:\nhttps://ubuntu.com/security/CVE-2024-50303\n\n\u0414\u043b\u044f Fedora:\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2327468",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "28.10.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "14.11.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "14.11.2025",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2025-14148",
  "\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-2024-50303",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Ubuntu, Red Hat Enterprise Linux, Fedora, 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 22.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 9 , Fedora Project Fedora 41 , Canonical Ltd. Ubuntu 24.04 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 Linux \u043e\u0442 6.8 \u0434\u043e 6.11.6 \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 walk_system_ram_res_rev() \u043c\u043e\u0434\u0443\u043b\u044f kernel/resource.c \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\u0432\u0435\u0440\u043d\u043e\u0435 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u0430\u043c\u0438 \u0440\u0435\u0441\u0443\u0440\u0441\u0430 (\u0412\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430) (CWE-99)",
  "\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 walk_system_ram_res_rev() \u043c\u043e\u0434\u0443\u043b\u044f kernel/resource.c \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\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u044b\u043c \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0435\u043c \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u043e\u0432 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432 (\u00ab\u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432\u00bb). \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://git.kernel.org/stable/c/dc9031b7919bd346514ea9a720f433b8daf3970d\nhttps://www.cve.org/CVERecord?id=CVE-2024-50303\nhttps://lore.kernel.org/linux-cve-announce/2024111922-CVE-2024-50303-2bd7@gregkh/\nhttps://git.kernel.org/linus/b125a0def25a082ae944c9615208bf359abdb61c\nhttps://ubuntu.com/security/notices/USN-7276-1\nhttps://ubuntu.com/security/notices/USN-7277-1\nhttps://ubuntu.com/security/notices/USN-7310-1\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.7\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2327468\nhttps://ubuntu.com/security/CVE-2024-50303\nhttps://access.redhat.com/security/cve/cve-2024-50303",
  "\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-99",
  "\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-2024-50303 (GCVE-0-2024-50303)

Vulnerability from cvelistv5 – Published: 2024-11-19 17:19 – Updated: 2026-05-11 20:49

Title

resource,kexec: walk_system_ram_res_rev must retain resource flags

Summary

In the Linux kernel, the following vulnerability has been resolved: resource,kexec: walk_system_ram_res_rev must retain resource flags walk_system_ram_res_rev() erroneously discards resource flags when passing the information to the callback. This causes systems with IORESOURCE_SYSRAM_DRIVER_MANAGED memory to have these resources selected during kexec to store kexec buffers if that memory happens to be at placed above normal system ram. This leads to undefined behavior after reboot. If the kexec buffer is never touched, nothing happens. If the kexec buffer is touched, it could lead to a crash (like below) or undefined behavior. Tested on a system with CXL memory expanders with driver managed memory, TPM enabled, and CONFIG_IMA_KEXEC=y. Adding printk's showed the flags were being discarded and as a result the check for IORESOURCE_SYSRAM_DRIVER_MANAGED passes. find_next_iomem_res: name(System RAM (kmem)) start(10000000000) end(1034fffffff) flags(83000200) locate_mem_hole_top_down: start(10000000000) end(1034fffffff) flags(0) [.] BUG: unable to handle page fault for address: ffff89834ffff000 [.] #PF: supervisor read access in kernel mode [.] #PF: error_code(0x0000) - not-present page [.] PGD c04c8bf067 P4D c04c8bf067 PUD c04c8be067 PMD 0 [.] Oops: 0000 [#1] SMP [.] RIP: 0010:ima_restore_measurement_list+0x95/0x4b0 [.] RSP: 0018:ffffc900000d3a80 EFLAGS: 00010286 [.] RAX: 0000000000001000 RBX: 0000000000000000 RCX: ffff89834ffff000 [.] RDX: 0000000000000018 RSI: ffff89834ffff000 RDI: ffff89834ffff018 [.] RBP: ffffc900000d3ba0 R08: 0000000000000020 R09: ffff888132b8a900 [.] R10: 4000000000000000 R11: 000000003a616d69 R12: 0000000000000000 [.] R13: ffffffff8404ac28 R14: 0000000000000000 R15: ffff89834ffff000 [.] FS: 0000000000000000(0000) GS:ffff893d44640000(0000) knlGS:0000000000000000 [.] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [.] ata5: SATA link down (SStatus 0 SControl 300) [.] CR2: ffff89834ffff000 CR3: 000001034d00f001 CR4: 0000000000770ef0 [.] PKRU: 55555554 [.] Call Trace: [.] <TASK> [.] ? __die+0x78/0xc0 [.] ? page_fault_oops+0x2a8/0x3a0 [.] ? exc_page_fault+0x84/0x130 [.] ? asm_exc_page_fault+0x22/0x30 [.] ? ima_restore_measurement_list+0x95/0x4b0 [.] ? template_desc_init_fields+0x317/0x410 [.] ? crypto_alloc_tfm_node+0x9c/0xc0 [.] ? init_ima_lsm+0x30/0x30 [.] ima_load_kexec_buffer+0x72/0xa0 [.] ima_init+0x44/0xa0 [.] __initstub__kmod_ima__373_1201_init_ima7+0x1e/0xb0 [.] ? init_ima_lsm+0x30/0x30 [.] do_one_initcall+0xad/0x200 [.] ? idr_alloc_cyclic+0xaa/0x110 [.] ? new_slab+0x12c/0x420 [.] ? new_slab+0x12c/0x420 [.] ? number+0x12a/0x430 [.] ? sysvec_apic_timer_interrupt+0xa/0x80 [.] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [.] ? parse_args+0xd4/0x380 [.] ? parse_args+0x14b/0x380 [.] kernel_init_freeable+0x1c1/0x2b0 [.] ? rest_init+0xb0/0xb0 [.] kernel_init+0x16/0x1a0 [.] ret_from_fork+0x2f/0x40 [.] ? rest_init+0xb0/0xb0 [.] ret_from_fork_asm+0x11/0x20 [.] </TASK>

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 20:13 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/dc9031b7919bd3465…
https://git.kernel.org/stable/c/b125a0def25a082ae…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7acf164b259d9007264d9d8501da1023f140a3b4 , < dc9031b7919bd346514ea9a720f433b8daf3970d (git) Affected: 7acf164b259d9007264d9d8501da1023f140a3b4 , < b125a0def25a082ae944c9615208bf359abdb61c (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.11.7 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-50303",
                "options": [
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                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T20:13:47.930851Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          }
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          "dateUpdated": "2025-10-01T20:17:19.702Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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          "versions": [
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          "versions": [
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              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
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        }
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      "cpeApplicability": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nresource,kexec: walk_system_ram_res_rev must retain resource flags\n\nwalk_system_ram_res_rev() erroneously discards resource flags when passing\nthe information to the callback.\n\nThis causes systems with IORESOURCE_SYSRAM_DRIVER_MANAGED memory to have\nthese resources selected during kexec to store kexec buffers if that\nmemory happens to be at placed above normal system ram.\n\nThis leads to undefined behavior after reboot.  If the kexec buffer is\nnever touched, nothing happens.  If the kexec buffer is touched, it could\nlead to a crash (like below) or undefined behavior.\n\nTested on a system with CXL memory expanders with driver managed memory,\nTPM enabled, and CONFIG_IMA_KEXEC=y.  Adding printk\u0027s showed the flags\nwere being discarded and as a result the check for\nIORESOURCE_SYSRAM_DRIVER_MANAGED passes.\n\nfind_next_iomem_res: name(System RAM (kmem))\n\t\t     start(10000000000)\n\t\t     end(1034fffffff)\n\t\t     flags(83000200)\n\nlocate_mem_hole_top_down: start(10000000000) end(1034fffffff) flags(0)\n\n[.] BUG: unable to handle page fault for address: ffff89834ffff000\n[.] #PF: supervisor read access in kernel mode\n[.] #PF: error_code(0x0000) - not-present page\n[.] PGD c04c8bf067 P4D c04c8bf067 PUD c04c8be067 PMD 0\n[.] Oops: 0000 [#1] SMP\n[.] RIP: 0010:ima_restore_measurement_list+0x95/0x4b0\n[.] RSP: 0018:ffffc900000d3a80 EFLAGS: 00010286\n[.] RAX: 0000000000001000 RBX: 0000000000000000 RCX: ffff89834ffff000\n[.] RDX: 0000000000000018 RSI: ffff89834ffff000 RDI: ffff89834ffff018\n[.] RBP: ffffc900000d3ba0 R08: 0000000000000020 R09: ffff888132b8a900\n[.] R10: 4000000000000000 R11: 000000003a616d69 R12: 0000000000000000\n[.] R13: ffffffff8404ac28 R14: 0000000000000000 R15: ffff89834ffff000\n[.] FS:  0000000000000000(0000) GS:ffff893d44640000(0000) knlGS:0000000000000000\n[.] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[.] ata5: SATA link down (SStatus 0 SControl 300)\n[.] CR2: ffff89834ffff000 CR3: 000001034d00f001 CR4: 0000000000770ef0\n[.] PKRU: 55555554\n[.] Call Trace:\n[.]  \u003cTASK\u003e\n[.]  ? __die+0x78/0xc0\n[.]  ? page_fault_oops+0x2a8/0x3a0\n[.]  ? exc_page_fault+0x84/0x130\n[.]  ? asm_exc_page_fault+0x22/0x30\n[.]  ? ima_restore_measurement_list+0x95/0x4b0\n[.]  ? template_desc_init_fields+0x317/0x410\n[.]  ? crypto_alloc_tfm_node+0x9c/0xc0\n[.]  ? init_ima_lsm+0x30/0x30\n[.]  ima_load_kexec_buffer+0x72/0xa0\n[.]  ima_init+0x44/0xa0\n[.]  __initstub__kmod_ima__373_1201_init_ima7+0x1e/0xb0\n[.]  ? init_ima_lsm+0x30/0x30\n[.]  do_one_initcall+0xad/0x200\n[.]  ? idr_alloc_cyclic+0xaa/0x110\n[.]  ? new_slab+0x12c/0x420\n[.]  ? new_slab+0x12c/0x420\n[.]  ? number+0x12a/0x430\n[.]  ? sysvec_apic_timer_interrupt+0xa/0x80\n[.]  ? asm_sysvec_apic_timer_interrupt+0x16/0x20\n[.]  ? parse_args+0xd4/0x380\n[.]  ? parse_args+0x14b/0x380\n[.]  kernel_init_freeable+0x1c1/0x2b0\n[.]  ? rest_init+0xb0/0xb0\n[.]  kernel_init+0x16/0x1a0\n[.]  ret_from_fork+0x2f/0x40\n[.]  ? rest_init+0xb0/0xb0\n[.]  ret_from_fork_asm+0x11/0x20\n[.]  \u003c/TASK\u003e"
        }
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:49:32.573Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/dc9031b7919bd346514ea9a720f433b8daf3970d"
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        {
          "url": "https://git.kernel.org/stable/c/b125a0def25a082ae944c9615208bf359abdb61c"
        }
      ],
      "title": "resource,kexec: walk_system_ram_res_rev must retain resource flags",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50303",
    "datePublished": "2024-11-19T17:19:29.585Z",
    "dateReserved": "2024-10-21T19:36:19.987Z",
    "dateUpdated": "2026-05-11T20:49:32.573Z",
    "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.
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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.
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