Vulnerability-Lookup

BDU:2025-04702 (CVE-2024-49946)

Vulnerability from fstec – Published: 2025-04-18 – Updated: 2026-01-20 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции ppp_channel_bridge_input() компонента ppp ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции ppp_channel_bridge_input() компонента ppp ядра операционной системы Linux связана с недостаточной блокировкой ресурса. Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании

Severity

3.8 (Low) CVSS 2.0


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

4.7 (Medium) CVSS 3.0


                      
                        CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Timing and state manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-667 - Недостаточная блокировка

Aliases

CVE-2024-49946, ROS-20250414-01

References

16 references

URL
https://redos.red-soft.ru/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti…
https://git.kernel.org/stable/c/176dd41e8c2bd997ed3d66568a3362e69ecce99b
https://git.kernel.org/stable/c/635deca1800a68624f185dc1e04a8495b48cf185
https://git.kernel.org/stable/c/f9620e2a665aa642625bd2501282bbddff556bd7
https://git.kernel.org/stable/c/efe9cc0f7c0279216a5522271ec675b8288602e4
https://git.kernel.org/stable/c/c837f8583535f094a39386308c2ccfd92c8596cd
https://git.kernel.org/stable/c/aec7291003df78cb71fd461d7b672912bde55807
http://repo.red-soft.ru/redos/7.3c/x86_64/updates/
https://access.redhat.com/security/cve/CVE-2024-49946
https://www.suse.com/security/cve/CVE-2024-49946.html
https://security-tracker.debian.org/tracker/CVE-2024-49946
https://ubuntu.com/security/CVE-2024-49946
https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0411SE18
https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47
https://поддержка.нппкт.рф/bin/view/ОСнова/Обновления/2.12/
https://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16

Impacted products

24 products from 8 vendors

Vendors

Novell Inc., Canonical Ltd., Сообщество свободного программного обеспечения, ООО «Ред Софт», ООО «РусБИТех-Астра», Red Hat, Inc., АО «НППКТ»

Products

OpenSUSE Leap, Ubuntu, Debian GNU/Linux, РЕД ОС (запись в едином реестре российских программ №3751), Astra Linux Special Edition (запись в едином реестре российских программ №369), Red Hat Enterprise Linux, SUSE Linux Enterprise Server for SAP Applications, Suse Linux Enterprise Server, Suse Linux Enterprise Desktop, SUSE Linux Enterprise High Performance Computing, SUSE Linux Enterprise Module for Basesystem, SUSE Linux Enterprise Module for Development Tools, SUSE Linux Enterprise Module for Public Cloud, SUSE Linux Enterprise Real Time, Astra Linux Common Edition (запись в едином реестре российских программ №4433), SUSE Linux Enterprise Live Patching, SUSE Linux Enterprise Workstation Extension, SUSE Linux Enterprise Micro, SUSE Real Time Module, SUSE Linux Enterprise High Availability Extension, SUSE Linux Enterprise Module for Confidential Computing Technical Preview, SUSE Linux Enterprise Module for Legacy, Linux, ОСОН ОСнова Оnyx (запись в едином реестре российских программ №5913)

Versions

15.5 (OpenSUSE Leap), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 7.3 (РЕД ОС), 4.7 (Astra Linux Special Edition), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), 15 SP5 (SUSE Linux Enterprise Server for SAP Applications), 15 SP5 (Suse Linux Enterprise Server), 15 SP5 (Suse Linux Enterprise Desktop), 15 SP5 (SUSE Linux Enterprise High Performance Computing), 15 SP5 (SUSE Linux Enterprise Module for Basesystem), 15 SP5 (SUSE Linux Enterprise Module for Development Tools), 15 SP5 (SUSE Linux Enterprise Module for Public Cloud), 15 SP5 (SUSE Linux Enterprise Real Time), 1.6 «Смоленск» (Astra Linux Common Edition), 15 SP5 (SUSE Linux Enterprise Live Patching), 15 SP5 (SUSE Linux Enterprise Workstation Extension), 5.5 (SUSE Linux Enterprise Micro), 15 SP5 (SUSE Real Time Module), 15 SP6 (Suse Linux Enterprise Desktop), 15 SP6 (Suse Linux Enterprise Server), 15 SP6 (SUSE Linux Enterprise Server for SAP Applications), 15 SP6 (SUSE Linux Enterprise High Performance Computing), 15 SP6 (SUSE Linux Enterprise Module for Basesystem), 24.04 LTS (Ubuntu), 15 SP6 (SUSE Linux Enterprise Workstation Extension), 15.6 (OpenSUSE Leap), 15 SP6 (SUSE Linux Enterprise Module for Development Tools), 15 SP5 (SUSE Linux Enterprise High Availability Extension), 1.8 (Astra Linux Special Edition), 15 SP6 (SUSE Linux Enterprise High Availability Extension), 15 SP6 (SUSE Linux Enterprise Live Patching), 15 SP6 (SUSE Linux Enterprise Module for Public Cloud), 15 SP6 (SUSE Linux Enterprise Real Time), 15 SP6 (SUSE Real Time Module), 24.10 (Ubuntu), 15 SP6 (SUSE Linux Enterprise Module for Confidential Computing Technical Preview), 15 SP5 (SUSE Linux Enterprise Module for Legacy), 15 SP6 (SUSE Linux Enterprise Module for Legacy), 15 SP5 (SUSE Linux Enterprise Module for Confidential Computing Technical Preview), от 5.15.0 до 5.15.168 (Linux), от 6.1.0 до 6.1.113 (Linux), до 6.12 rc2 (Linux), до 2.12 (ОСОН ОСнова Оnyx), от 6.10.0 до 6.10.14 (Linux), от 6.11.0 до 6.11.3 (Linux), от 6.6.0 до 6.6.55 (Linux)

Product types

Operating system, Application software

Platforms

Novell Inc. OpenSUSE Leap 15.5, Canonical Ltd. Ubuntu 20.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Сообщество свободного программного обеспечения Debian GNU/Linux 12, ООО «Ред Софт» РЕД ОС 7.3 (запись в едином реестре российских программ №3751), ООО «РусБИТех-Астра» Astra Linux Special Edition 4.7 (запись в едином реестре российских программ №369), Canonical Ltd. Ubuntu 22.04 LTS, Red Hat, Inc. Red Hat Enterprise Linux 9, Novell Inc. SUSE Linux Enterprise Server for SAP Applications 15 SP5, Novell Inc. Suse Linux Enterprise Server 15 SP5, Novell Inc. Suse Linux Enterprise Desktop 15 SP5, Novell Inc. SUSE Linux Enterprise Real Time 15 SP5, ООО «РусБИТех-Астра» Astra Linux Common Edition 1.6 «Смоленск» (запись в едином реестре российских программ №4433), Novell Inc. Suse Linux Enterprise Desktop 15 SP6, Novell Inc. Suse Linux Enterprise Server 15 SP6, Novell Inc. SUSE Linux Enterprise Server for SAP Applications 15 SP6, Canonical Ltd. Ubuntu 24.04 LTS, Novell Inc. OpenSUSE Leap 15.6, ООО «РусБИТех-Астра» Astra Linux Special Edition 1.8 (запись в едином реестре российских программ №369), Novell Inc. SUSE Linux Enterprise Real Time 15 SP6, Canonical Ltd. Ubuntu 24.10, Сообщество свободного программного обеспечения Linux от 5.15.0 до 5.15.168, Сообщество свободного программного обеспечения Linux от 6.1.0 до 6.1.113, Сообщество свободного программного обеспечения Linux до 6.12 rc2, АО «НППКТ» ОСОН ОСнова Оnyx до 2.12 (запись в едином реестре российских программ №5913), Сообщество свободного программного обеспечения Linux от 6.10.0 до 6.10.14, Сообщество свободного программного обеспечения Linux от 6.11.0 до 6.11.3, Сообщество свободного программного обеспечения Linux от 6.6.0 до 6.6.55

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/2024102129-CVE-2024-49946-762f@gregkh/ https://git.kernel.org/stable/c/176dd41e8c2bd997ed3d66568a3362e69ecce99b https://git.kernel.org/stable/c/635deca1800a68624f185dc1e04a8495b48cf185 https://git.kernel.org/stable/c/f9620e2a665aa642625bd2501282bbddff556bd7 https://git.kernel.org/stable/c/efe9cc0f7c0279216a5522271ec675b8288602e4 https://git.kernel.org/stable/c/c837f8583535f094a39386308c2ccfd92c8596cd https://git.kernel.org/stable/c/aec7291003df78cb71fd461d7b672912bde55807 Для РедОС: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/ Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/CVE-2024-49946 Для программных продуктов Novell Inc.: https://www.suse.com/security/cve/CVE-2024-49946.html Для программных продуктов Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2024-49946 Для программных продуктов Ubuntu: https://ubuntu.com/security/CVE-2024-49946 Для ОС Astra Linux: - обновить пакет linux-6.1 до 6.1.124-1.astra1+ci29 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0411SE18 - обновить пакет linux-6.6 до 6.12.11-1.astra1+ci18 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0411SE18 Для ОС Astra Linux: - обновить пакет linux-5.15 до 5.15.0-127.astra1+ci5 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47 - обновить пакет linux-6.1 до 6.1.124-1.astra2+ci4 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47 Обновление программного обеспечения linux до версии 6.6.66-0.osnova2u1 Для ОС Astra Linux: обновить пакет linux-5.15 до 5.15.0-158.astra2+ci2 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:H/Au:S/C:N/I:N/A:C",
  "CVSS 3.0": "AV:L/AC:H/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": "Novell Inc., Canonical Ltd., \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f, \u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb, \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, Red Hat, Inc., \u0410\u041e \u00ab\u041d\u041f\u041f\u041a\u0422\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "15.5 (OpenSUSE Leap), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 7.3 (\u0420\u0415\u0414 \u041e\u0421), 4.7 (Astra Linux Special Edition), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), 15 SP5 (SUSE Linux Enterprise Server for SAP Applications), 15 SP5 (Suse Linux Enterprise Server), 15 SP5 (Suse Linux Enterprise Desktop), 15 SP5 (SUSE Linux Enterprise High Performance Computing), 15 SP5 (SUSE Linux Enterprise Module for Basesystem), 15 SP5 (SUSE Linux Enterprise Module for Development Tools), 15 SP5 (SUSE Linux Enterprise Module for Public Cloud), 15 SP5 (SUSE Linux Enterprise Real Time), 1.6 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb (Astra Linux Common Edition), 15 SP5 (SUSE Linux Enterprise Live Patching), 15 SP5 (SUSE Linux Enterprise Workstation Extension), 5.5 (SUSE Linux Enterprise Micro), 15 SP5 (SUSE Real Time Module), 15 SP6 (Suse Linux Enterprise Desktop), 15 SP6 (Suse Linux Enterprise Server), 15 SP6 (SUSE Linux Enterprise Server for SAP Applications), 15 SP6 (SUSE Linux Enterprise High Performance Computing), 15 SP6 (SUSE Linux Enterprise Module for Basesystem), 24.04 LTS (Ubuntu), 15 SP6 (SUSE Linux Enterprise Workstation Extension), 15.6 (OpenSUSE Leap), 15 SP6 (SUSE Linux Enterprise Module for Development Tools), 15 SP5 (SUSE Linux Enterprise High Availability Extension), 1.8 (Astra Linux Special Edition), 15 SP6 (SUSE Linux Enterprise High Availability Extension), 15 SP6 (SUSE Linux Enterprise Live Patching), 15 SP6 (SUSE Linux Enterprise Module for Public Cloud), 15 SP6 (SUSE Linux Enterprise Real Time), 15 SP6 (SUSE Real Time Module), 24.10 (Ubuntu), 15 SP6 (SUSE Linux Enterprise Module for Confidential Computing Technical Preview), 15 SP5 (SUSE Linux Enterprise Module for Legacy), 15 SP6 (SUSE Linux Enterprise Module for Legacy), 15 SP5 (SUSE Linux Enterprise Module for Confidential Computing Technical Preview), \u043e\u0442 5.15.0 \u0434\u043e 5.15.168 (Linux), \u043e\u0442 6.1.0 \u0434\u043e 6.1.113 (Linux), \u0434\u043e 6.12 rc2 (Linux), \u0434\u043e 2.12 (\u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx), \u043e\u0442 6.10.0 \u0434\u043e 6.10.14 (Linux), \u043e\u0442 6.11.0 \u0434\u043e 6.11.3 (Linux), \u043e\u0442 6.6.0 \u0434\u043e 6.6.55 (Linux)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0412 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u044f \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043e\u0442 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u0442\u0441\u044f \u043f\u0440\u0438\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c\u0441\u044f \"\u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u043e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0439 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c LINUX\", \u0438\u0437\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0445 \u0432 \u043c\u0435\u0442\u043e\u0434\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0435 \u0424\u0421\u0422\u042d\u041a \u0420\u043e\u0441\u0441\u0438\u0438, \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0451\u043d\u043d\u043e\u043c 25 \u0434\u0435\u043a\u0430\u0431\u0440\u044f 2022 \u0433\u043e\u0434\u0430.\n\n\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\n\u0414\u043b\u044f Linux:\nhttps://lore.kernel.org/linux-cve-announce/2024102129-CVE-2024-49946-762f@gregkh/\nhttps://git.kernel.org/stable/c/176dd41e8c2bd997ed3d66568a3362e69ecce99b\nhttps://git.kernel.org/stable/c/635deca1800a68624f185dc1e04a8495b48cf185\nhttps://git.kernel.org/stable/c/f9620e2a665aa642625bd2501282bbddff556bd7\nhttps://git.kernel.org/stable/c/efe9cc0f7c0279216a5522271ec675b8288602e4\nhttps://git.kernel.org/stable/c/c837f8583535f094a39386308c2ccfd92c8596cd\nhttps://git.kernel.org/stable/c/aec7291003df78cb71fd461d7b672912bde55807\n\n\u0414\u043b\u044f \u0420\u0435\u0434\u041e\u0421: \nhttp://repo.red-soft.ru/redos/7.3c/x86_64/updates/\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-2024-49946\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 Novell Inc.:\nhttps://www.suse.com/security/cve/CVE-2024-49946.html\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2024-49946\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Ubuntu:\nhttps://ubuntu.com/security/CVE-2024-49946\n\n\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-6.1 \u0434\u043e 6.1.124-1.astra1+ci29 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0411SE18\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-6.6 \u0434\u043e 6.12.11-1.astra1+ci18 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0411SE18\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-5.15 \u0434\u043e 5.15.0-127.astra1+ci5 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-6.1 \u0434\u043e 6.1.124-1.astra2+ci4 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47\n\n\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 linux \u0434\u043e \u0432\u0435\u0440\u0441\u0438\u0438 6.6.66-0.osnova2u1\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-5.15 \u0434\u043e 5.15.0-158.astra2+ci2 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "27.09.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "20.01.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "18.04.2025",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2025-04702",
  "\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-2024-49946, ROS-20250414-01",
  "\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": "OpenSUSE Leap, Ubuntu, Debian GNU/Linux, \u0420\u0415\u0414 \u041e\u0421 (\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 \u21163751), Astra Linux Special Edition (\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 \u2116369), Red Hat Enterprise Linux, SUSE Linux Enterprise Server for SAP Applications, Suse Linux Enterprise Server, Suse Linux Enterprise Desktop, SUSE Linux Enterprise High Performance Computing, SUSE Linux Enterprise Module for Basesystem, SUSE Linux Enterprise Module for Development Tools, SUSE Linux Enterprise Module for Public Cloud, SUSE Linux Enterprise Real Time, Astra Linux Common Edition (\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 \u21164433), SUSE Linux Enterprise Live Patching, SUSE Linux Enterprise Workstation Extension, SUSE Linux Enterprise Micro, SUSE Real Time Module, SUSE Linux Enterprise High Availability Extension, SUSE Linux Enterprise Module for Confidential Computing Technical Preview, SUSE Linux Enterprise Module for Legacy, Linux, \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx (\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 \u21165913)",
  "\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": "Novell Inc. OpenSUSE Leap 15.5 , Canonical Ltd. Ubuntu 20.04 LTS , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 11 , \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 12 , \u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb \u0420\u0415\u0414 \u041e\u0421 7.3  (\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 \u21163751), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 4.7  (\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 \u2116369), Canonical Ltd. Ubuntu 22.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 9 , Novell Inc. SUSE Linux Enterprise Server for SAP Applications 15 SP5 , Novell Inc. Suse Linux Enterprise Server 15 SP5 , Novell Inc. Suse Linux Enterprise Desktop 15 SP5 , Novell Inc. SUSE Linux Enterprise Real Time 15 SP5 , \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Common Edition 1.6 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb  (\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 \u21164433), Novell Inc. Suse Linux Enterprise Desktop 15 SP6 , Novell Inc. Suse Linux Enterprise Server 15 SP6 , Novell Inc. SUSE Linux Enterprise Server for SAP Applications 15 SP6 , Canonical Ltd. Ubuntu 24.04 LTS , Novell Inc. OpenSUSE Leap 15.6 , \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.8  (\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 \u2116369), Novell Inc. SUSE Linux Enterprise Real Time 15 SP6 , Canonical Ltd. Ubuntu 24.10 , \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 5.15.0 \u0434\u043e 5.15.168 , \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 6.1.0 \u0434\u043e 6.1.113 , \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 \u0434\u043e 6.12 rc2 , \u0410\u041e \u00ab\u041d\u041f\u041f\u041a\u0422\u00bb \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx \u0434\u043e 2.12  (\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 \u21165913), \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 6.10.0 \u0434\u043e 6.10.14 , \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 6.11.0 \u0434\u043e 6.11.3 , \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 6.6.0 \u0434\u043e 6.6.55 ",
  "\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 ppp_channel_bridge_input() \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 ppp \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\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u0430\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0430 (CWE-667)",
  "\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 ppp_channel_bridge_input() \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 ppp \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\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u0439 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u043e\u0439 \u0440\u0435\u0441\u0443\u0440\u0441\u0430. \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 \u0441\u0440\u043e\u043a\u0430\u043c\u0438 \u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435\u043c",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://redos.red-soft.ru/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti-kernel-lt-140425/?sphrase_id=879971\nhttps://git.kernel.org/stable/c/176dd41e8c2bd997ed3d66568a3362e69ecce99b\nhttps://git.kernel.org/stable/c/635deca1800a68624f185dc1e04a8495b48cf185\nhttps://git.kernel.org/stable/c/f9620e2a665aa642625bd2501282bbddff556bd7\nhttps://git.kernel.org/stable/c/efe9cc0f7c0279216a5522271ec675b8288602e4\nhttps://git.kernel.org/stable/c/c837f8583535f094a39386308c2ccfd92c8596cd\nhttps://git.kernel.org/stable/c/aec7291003df78cb71fd461d7b672912bde55807\nhttp://repo.red-soft.ru/redos/7.3c/x86_64/updates/\nhttps://access.redhat.com/security/cve/CVE-2024-49946\nhttps://www.suse.com/security/cve/CVE-2024-49946.html\nhttps://security-tracker.debian.org/tracker/CVE-2024-49946\nhttps://ubuntu.com/security/CVE-2024-49946\nhttps://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0411SE18\nhttps://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47\nhttps://\u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430.\u043d\u043f\u043f\u043a\u0442.\u0440\u0444/bin/view/\u041e\u0421\u043d\u043e\u0432\u0430/\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f/2.12/\nhttps://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16",
  "\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\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-667",
  "\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": "\u041d\u0438\u0437\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 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 3,8)\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 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 4,7)"
}

CVE-2024-49946 (GCVE-0-2024-49946)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-05-11 20:42

Title

ppp: do not assume bh is held in ppp_channel_bridge_input()

Summary

In the Linux kernel, the following vulnerability has been resolved: ppp: do not assume bh is held in ppp_channel_bridge_input() Networking receive path is usually handled from BH handler. However, some protocols need to acquire the socket lock, and packets might be stored in the socket backlog is the socket was owned by a user process. In this case, release_sock(), __release_sock(), and sk_backlog_rcv() might call the sk->sk_backlog_rcv() handler in process context. sybot caught ppp was not considering this case in ppp_channel_bridge_input() : WARNING: inconsistent lock state 6.11.0-rc7-syzkaller-g5f5673607153 #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. ksoftirqd/1/24 [HC0[0]:SC1[1]:HE1:SE0] takes: ffff0000db7f11e0 (&pch->downl){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] ffff0000db7f11e0 (&pch->downl){+.?.}-{2:2}, at: ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline] ffff0000db7f11e0 (&pch->downl){+.?.}-{2:2}, at: ppp_input+0x16c/0x854 drivers/net/ppp/ppp_generic.c:2304 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5759 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline] ppp_input+0x16c/0x854 drivers/net/ppp/ppp_generic.c:2304 pppoe_rcv_core+0xfc/0x314 drivers/net/ppp/pppoe.c:379 sk_backlog_rcv include/net/sock.h:1111 [inline] __release_sock+0x1a8/0x3d8 net/core/sock.c:3004 release_sock+0x68/0x1b8 net/core/sock.c:3558 pppoe_sendmsg+0xc8/0x5d8 drivers/net/ppp/pppoe.c:903 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x374/0x4f4 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2212 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 282914 hardirqs last enabled at (282914): [<ffff80008b42e30c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (282914): [<ffff80008b42e30c>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (282913): [<ffff80008b42e13c>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (282913): [<ffff80008b42e13c>] _raw_spin_lock_irqsave+0x2c/0x7c kernel/locking/spinlock.c:162 softirqs last enabled at (282904): [<ffff8000801f8e88>] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (282904): [<ffff8000801f8e88>] handle_softirqs+0xa3c/0xbfc kernel/softirq.c:582 softirqs last disabled at (282909): [<ffff8000801fbdf8>] run_ksoftirqd+0x70/0x158 kernel/softirq.c:928 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&pch->downl); <Interrupt> lock(&pch->downl); *** DEADLOCK *** 1 lock held by ksoftirqd/1/24: #0: ffff80008f74dfa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:325 stack backtrace: CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.11.0-rc7-syzkaller-g5f5673607153 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:319 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:326 __dump_sta ---truncated---

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-22 13:37 UTC

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/176dd41e8c2bd997e…
https://git.kernel.org/stable/c/635deca1800a68624…
https://git.kernel.org/stable/c/f9620e2a665aa6426…
https://git.kernel.org/stable/c/efe9cc0f7c0279216…
https://git.kernel.org/stable/c/c837f8583535f094a…
https://git.kernel.org/stable/c/aec7291003df78cb7…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4cf476ced45d7f12df30a68e833b263e7a2202d1 , < 176dd41e8c2bd997ed3d66568a3362e69ecce99b (git) Affected: 4cf476ced45d7f12df30a68e833b263e7a2202d1 , < 635deca1800a68624f185dc1e04a8495b48cf185 (git) Affected: 4cf476ced45d7f12df30a68e833b263e7a2202d1 , < f9620e2a665aa642625bd2501282bbddff556bd7 (git) Affected: 4cf476ced45d7f12df30a68e833b263e7a2202d1 , < efe9cc0f7c0279216a5522271ec675b8288602e4 (git) Affected: 4cf476ced45d7f12df30a68e833b263e7a2202d1 , < c837f8583535f094a39386308c2ccfd92c8596cd (git) Affected: 4cf476ced45d7f12df30a68e833b263e7a2202d1 , < aec7291003df78cb71fd461d7b672912bde55807 (git)
Linux	Linux	Affected: 5.11 Unaffected: 0 , < 5.11 (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.113 , ≤ 6.1.* (semver) Unaffected: 6.6.55 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-49946",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:37:03.573119Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T22:23:26.493Z",
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        "references": [
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        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          ]
        },
        {
          "defaultStatus": "affected",
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          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "5.11"
            },
            {
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              "status": "unaffected",
              "version": "0",
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            },
            {
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
                {
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                  "versionEndExcluding": "6.6.55",
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                },
                {
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                },
                {
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                },
                {
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                  "versionEndExcluding": "6.12",
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                }
              ],
              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nppp: do not assume bh is held in ppp_channel_bridge_input()\n\nNetworking receive path is usually handled from BH handler.\nHowever, some protocols need to acquire the socket lock, and\npackets might be stored in the socket backlog is the socket was\nowned by a user process.\n\nIn this case, release_sock(), __release_sock(), and sk_backlog_rcv()\nmight call the sk-\u003esk_backlog_rcv() handler in process context.\n\nsybot caught ppp was not considering this case in\nppp_channel_bridge_input() :\n\nWARNING: inconsistent lock state\n6.11.0-rc7-syzkaller-g5f5673607153 #0 Not tainted\n--------------------------------\ninconsistent {SOFTIRQ-ON-W} -\u003e {IN-SOFTIRQ-W} usage.\nksoftirqd/1/24 [HC0[0]:SC1[1]:HE1:SE0] takes:\n ffff0000db7f11e0 (\u0026pch-\u003edownl){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]\n ffff0000db7f11e0 (\u0026pch-\u003edownl){+.?.}-{2:2}, at: ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline]\n ffff0000db7f11e0 (\u0026pch-\u003edownl){+.?.}-{2:2}, at: ppp_input+0x16c/0x854 drivers/net/ppp/ppp_generic.c:2304\n{SOFTIRQ-ON-W} state was registered at:\n   lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5759\n   __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]\n   _raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:154\n   spin_lock include/linux/spinlock.h:351 [inline]\n   ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline]\n   ppp_input+0x16c/0x854 drivers/net/ppp/ppp_generic.c:2304\n   pppoe_rcv_core+0xfc/0x314 drivers/net/ppp/pppoe.c:379\n   sk_backlog_rcv include/net/sock.h:1111 [inline]\n   __release_sock+0x1a8/0x3d8 net/core/sock.c:3004\n   release_sock+0x68/0x1b8 net/core/sock.c:3558\n   pppoe_sendmsg+0xc8/0x5d8 drivers/net/ppp/pppoe.c:903\n   sock_sendmsg_nosec net/socket.c:730 [inline]\n   __sock_sendmsg net/socket.c:745 [inline]\n   __sys_sendto+0x374/0x4f4 net/socket.c:2204\n   __do_sys_sendto net/socket.c:2216 [inline]\n   __se_sys_sendto net/socket.c:2212 [inline]\n   __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2212\n   __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]\n   invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49\n   el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132\n   do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151\n   el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712\n   el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730\n   el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598\nirq event stamp: 282914\n hardirqs last  enabled at (282914): [\u003cffff80008b42e30c\u003e] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]\n hardirqs last  enabled at (282914): [\u003cffff80008b42e30c\u003e] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194\n hardirqs last disabled at (282913): [\u003cffff80008b42e13c\u003e] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]\n hardirqs last disabled at (282913): [\u003cffff80008b42e13c\u003e] _raw_spin_lock_irqsave+0x2c/0x7c kernel/locking/spinlock.c:162\n softirqs last  enabled at (282904): [\u003cffff8000801f8e88\u003e] softirq_handle_end kernel/softirq.c:400 [inline]\n softirqs last  enabled at (282904): [\u003cffff8000801f8e88\u003e] handle_softirqs+0xa3c/0xbfc kernel/softirq.c:582\n softirqs last disabled at (282909): [\u003cffff8000801fbdf8\u003e] run_ksoftirqd+0x70/0x158 kernel/softirq.c:928\n\nother info that might help us debug this:\n Possible unsafe locking scenario:\n\n       CPU0\n       ----\n  lock(\u0026pch-\u003edownl);\n  \u003cInterrupt\u003e\n    lock(\u0026pch-\u003edownl);\n\n *** DEADLOCK ***\n\n1 lock held by ksoftirqd/1/24:\n  #0: ffff80008f74dfa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:325\n\nstack backtrace:\nCPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.11.0-rc7-syzkaller-g5f5673607153 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nCall trace:\n  dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:319\n  show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:326\n  __dump_sta\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:42:36.068Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/176dd41e8c2bd997ed3d66568a3362e69ecce99b"
        },
        {
          "url": "https://git.kernel.org/stable/c/635deca1800a68624f185dc1e04a8495b48cf185"
        },
        {
          "url": "https://git.kernel.org/stable/c/f9620e2a665aa642625bd2501282bbddff556bd7"
        },
        {
          "url": "https://git.kernel.org/stable/c/efe9cc0f7c0279216a5522271ec675b8288602e4"
        },
        {
          "url": "https://git.kernel.org/stable/c/c837f8583535f094a39386308c2ccfd92c8596cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/aec7291003df78cb71fd461d7b672912bde55807"
        }
      ],
      "title": "ppp: do not assume bh is held in ppp_channel_bridge_input()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-49946",
    "datePublished": "2024-10-21T18:02:03.779Z",
    "dateReserved": "2024-10-21T12:17:06.044Z",
    "dateUpdated": "2026-05-11T20:42:36.068Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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