Vulnerability-Lookup

BDU:2026-01234 (CVE-2023-54094)

Vulnerability from fstec – Published: 2026-02-04 – Updated: 2026-02-04 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции skb_segment_list() модуля net/core/skbuff.c поддержки сетевых функций ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции skb_segment_list() модуля net/core/skbuff.c поддержки сетевых функций ядра операционной системы Linux связана с разыменованием указателей. Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании

Severity

4.6 (Medium) CVSS 2.0


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

5.5 (Medium) CVSS 3.1


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-476 - Разыменование указателя NULL

Aliases

CVE-2023-54094

References

13 references

URL
https://www.cve.org/CVERecord?id=CVE-2023-54094
https://git.kernel.org/stable/c/bc3ab5d2ab69823f5cff89cf74ef78ffa0386c9a
https://git.kernel.org/stable/c/ea438eed94ac0fe69b93ac034738823c0e989a12
https://git.kernel.org/stable/c/1731234e8b60063eae858c77b55c7a88f5084353
https://git.kernel.org/stable/c/7a59f29961cf97b98b02acaadf5a0b1f8dde938c
https://git.kernel.org/stable/c/c329b261afe71197d9da83c1f18eb45a7e97e089
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.40
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.5
https://lore.kernel.org/linux-cve-announce/2025122408-CVE-2023-54094-e8ce@gregkh/
https://security-tracker.debian.org/tracker/CVE-2023-54094
https://access.redhat.com/security/cve/cve-2023-54094

Impacted products

3 products from 3 vendors

Vendors

Red Hat, Inc., Сообщество свободного программного обеспечения

Products

Red Hat Enterprise Linux, Debian GNU/Linux, Linux

Versions

8 (Red Hat Enterprise Linux), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 9 (Red Hat Enterprise Linux), от 5.11 до 5.15.120 включительно (Linux), от 5.16 до 6.1.39 включительно (Linux), от 6.2 до 6.4.4 включительно (Linux), от 5.6 до 5.10.187 включительно (Linux)

Product types

Operating system

Platforms

Red Hat, Inc. Red Hat Enterprise Linux 8, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Сообщество свободного программного обеспечения Debian GNU/Linux 12, Inc. Red Hat Enterprise Linux 9, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.120 включительно, Сообщество свободного программного обеспечения Linux от 5.16 до 6.1.39 включительно, Сообщество свободного программного обеспечения Linux от 6.2 до 6.4.4 включительно, Сообщество свободного программного обеспечения Linux от 5.6 до 5.10.187 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/2025122408-CVE-2023-54094-e8ce@gregkh/ https://git.kernel.org/stable/c/bc3ab5d2ab69823f5cff89cf74ef78ffa0386c9a https://git.kernel.org/stable/c/ea438eed94ac0fe69b93ac034738823c0e989a12 https://git.kernel.org/stable/c/1731234e8b60063eae858c77b55c7a88f5084353 https://git.kernel.org/stable/c/7a59f29961cf97b98b02acaadf5a0b1f8dde938c https://git.kernel.org/stable/c/c329b261afe71197d9da83c1f18eb45a7e97e089 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.40 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.5 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2023-54094 Для продуктов Red Hat Inc.: https://access.redhat.com/security/cve/cve-2023-54094

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": "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",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "8 (Red Hat Enterprise Linux), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 9 (Red Hat Enterprise Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.120 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.16 \u0434\u043e 6.1.39 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 6.2 \u0434\u043e 6.4.4 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.6 \u0434\u043e 5.10.187 \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/2025122408-CVE-2023-54094-e8ce@gregkh/\nhttps://git.kernel.org/stable/c/bc3ab5d2ab69823f5cff89cf74ef78ffa0386c9a\nhttps://git.kernel.org/stable/c/ea438eed94ac0fe69b93ac034738823c0e989a12\nhttps://git.kernel.org/stable/c/1731234e8b60063eae858c77b55c7a88f5084353\nhttps://git.kernel.org/stable/c/7a59f29961cf97b98b02acaadf5a0b1f8dde938c\nhttps://git.kernel.org/stable/c/c329b261afe71197d9da83c1f18eb45a7e97e089\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.40\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.5\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2023-54094\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat Inc.:\nhttps://access.redhat.com/security/cve/cve-2023-54094",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "08.07.2023",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "04.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "04.02.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-01234",
  "\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-2023-54094",
  "\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",
  "\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 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 , \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 , Red Hat, Inc. Red Hat Enterprise Linux 9 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.11 \u0434\u043e 5.15.120 \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 6.1.39 \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 6.2 \u0434\u043e 6.4.4 \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 5.6 \u0434\u043e 5.10.187 \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 skb_segment_list() \u043c\u043e\u0434\u0443\u043b\u044f net/core/skbuff.c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 \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": "\u0420\u0430\u0437\u044b\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f NULL (CWE-476)",
  "\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 skb_segment_list() \u043c\u043e\u0434\u0443\u043b\u044f net/core/skbuff.c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 \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 \u0440\u0430\u0437\u044b\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u0435\u0439. \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\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-2023-54094\nhttps://git.kernel.org/stable/c/bc3ab5d2ab69823f5cff89cf74ef78ffa0386c9a\nhttps://git.kernel.org/stable/c/ea438eed94ac0fe69b93ac034738823c0e989a12\nhttps://git.kernel.org/stable/c/1731234e8b60063eae858c77b55c7a88f5084353\nhttps://git.kernel.org/stable/c/7a59f29961cf97b98b02acaadf5a0b1f8dde938c\nhttps://git.kernel.org/stable/c/c329b261afe71197d9da83c1f18eb45a7e97e089\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.40\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.5\nhttps://lore.kernel.org/linux-cve-announce/2025122408-CVE-2023-54094-e8ce@gregkh/\nhttps://security-tracker.debian.org/tracker/CVE-2023-54094\nhttps://access.redhat.com/security/cve/cve-2023-54094",
  "\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-476",
  "\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-2023-54094 (GCVE-0-2023-54094)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:06 – Updated: 2026-08-05 09:17

Title

net: prevent skb corruption on frag list segmentation

Summary

In the Linux kernel, the following vulnerability has been resolved: net: prevent skb corruption on frag list segmentation Ian reported several skb corruptions triggered by rx-gro-list, collecting different oops alike: [ 62.624003] BUG: kernel NULL pointer dereference, address: 00000000000000c0 [ 62.631083] #PF: supervisor read access in kernel mode [ 62.636312] #PF: error_code(0x0000) - not-present page [ 62.641541] PGD 0 P4D 0 [ 62.644174] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 62.648629] CPU: 1 PID: 913 Comm: napi/eno2-79 Not tainted 6.4.0 #364 [ 62.655162] Hardware name: Supermicro Super Server/A2SDi-12C-HLN4F, BIOS 1.7a 10/13/2022 [ 62.663344] RIP: 0010:__udp_gso_segment (./include/linux/skbuff.h:2858 ./include/linux/udp.h:23 net/ipv4/udp_offload.c:228 net/ipv4/udp_offload.c:261 net/ipv4/udp_offload.c:277) [ 62.687193] RSP: 0018:ffffbd3a83b4f868 EFLAGS: 00010246 [ 62.692515] RAX: 00000000000000ce RBX: 0000000000000000 RCX: 0000000000000000 [ 62.699743] RDX: ffffa124def8a000 RSI: 0000000000000079 RDI: ffffa125952a14d4 [ 62.706970] RBP: ffffa124def8a000 R08: 0000000000000022 R09: 00002000001558c9 [ 62.714199] R10: 0000000000000000 R11: 00000000be554639 R12: 00000000000000e2 [ 62.721426] R13: ffffa125952a1400 R14: ffffa125952a1400 R15: 00002000001558c9 [ 62.728654] FS: 0000000000000000(0000) GS:ffffa127efa40000(0000) knlGS:0000000000000000 [ 62.736852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.742702] CR2: 00000000000000c0 CR3: 00000001034b0000 CR4: 00000000003526e0 [ 62.749948] Call Trace: [ 62.752498] <TASK> [ 62.779267] inet_gso_segment (net/ipv4/af_inet.c:1398) [ 62.787605] skb_mac_gso_segment (net/core/gro.c:141) [ 62.791906] __skb_gso_segment (net/core/dev.c:3403 (discriminator 2)) [ 62.800492] validate_xmit_skb (./include/linux/netdevice.h:4862 net/core/dev.c:3659) [ 62.804695] validate_xmit_skb_list (net/core/dev.c:3710) [ 62.809158] sch_direct_xmit (net/sched/sch_generic.c:330) [ 62.813198] __dev_queue_xmit (net/core/dev.c:3805 net/core/dev.c:4210) net/netfilter/core.c:626) [ 62.821093] br_dev_queue_push_xmit (net/bridge/br_forward.c:55) [ 62.825652] maybe_deliver (net/bridge/br_forward.c:193) [ 62.829420] br_flood (net/bridge/br_forward.c:233) [ 62.832758] br_handle_frame_finish (net/bridge/br_input.c:215) [ 62.837403] br_handle_frame (net/bridge/br_input.c:298 net/bridge/br_input.c:416) [ 62.851417] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5387) [ 62.866114] __netif_receive_skb_list_core (net/core/dev.c:5570) [ 62.871367] netif_receive_skb_list_internal (net/core/dev.c:5638 net/core/dev.c:5727) [ 62.876795] napi_complete_done (./include/linux/list.h:37 ./include/net/gro.h:434 ./include/net/gro.h:429 net/core/dev.c:6067) [ 62.881004] ixgbe_poll (drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:3191) [ 62.893534] __napi_poll (net/core/dev.c:6498) [ 62.897133] napi_threaded_poll (./include/linux/netpoll.h:89 net/core/dev.c:6640) [ 62.905276] kthread (kernel/kthread.c:379) [ 62.913435] ret_from_fork (arch/x86/entry/entry_64.S:314) [ 62.917119] </TASK> In the critical scenario, rx-gro-list GRO-ed packets are fed, via a bridge, both to the local input path and to an egress device (tun). The segmentation of such packets unsafely writes to the cloned skbs with shared heads. This change addresses the issue by uncloning as needed the to-be-segmented skbs.

Severity

9.8 (Critical)


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

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/bc3ab5d2ab69823f5…
https://git.kernel.org/stable/c/ea438eed94ac0fe69…
https://git.kernel.org/stable/c/1731234e8b60063ea…
https://git.kernel.org/stable/c/7a59f29961cf97b98…
https://git.kernel.org/stable/c/c329b261afe71197d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596 , < bc3ab5d2ab69823f5cff89cf74ef78ffa0386c9a (git) Affected: 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596 , < ea438eed94ac0fe69b93ac034738823c0e989a12 (git) Affected: 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596 , < 1731234e8b60063eae858c77b55c7a88f5084353 (git) Affected: 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596 , < 7a59f29961cf97b98b02acaadf5a0b1f8dde938c (git) Affected: 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596 , < c329b261afe71197d9da83c1f18eb45a7e97e089 (git)
Linux	Linux	Affected: 5.6 Unaffected: 0 , < 5.6 (semver) Unaffected: 5.10.188 , ≤ 5.10.* (semver) Unaffected: 5.15.121 , ≤ 5.15.* (semver) Unaffected: 6.1.40 , ≤ 6.1.* (semver) Unaffected: 6.4.5 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/skbuff.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bc3ab5d2ab69823f5cff89cf74ef78ffa0386c9a",
              "status": "affected",
              "version": "3a1296a38d0cf62bffb9a03c585cbd5dbf15d596",
              "versionType": "git"
            },
            {
              "lessThan": "ea438eed94ac0fe69b93ac034738823c0e989a12",
              "status": "affected",
              "version": "3a1296a38d0cf62bffb9a03c585cbd5dbf15d596",
              "versionType": "git"
            },
            {
              "lessThan": "1731234e8b60063eae858c77b55c7a88f5084353",
              "status": "affected",
              "version": "3a1296a38d0cf62bffb9a03c585cbd5dbf15d596",
              "versionType": "git"
            },
            {
              "lessThan": "7a59f29961cf97b98b02acaadf5a0b1f8dde938c",
              "status": "affected",
              "version": "3a1296a38d0cf62bffb9a03c585cbd5dbf15d596",
              "versionType": "git"
            },
            {
              "lessThan": "c329b261afe71197d9da83c1f18eb45a7e97e089",
              "status": "affected",
              "version": "3a1296a38d0cf62bffb9a03c585cbd5dbf15d596",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/core/skbuff.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.6"
            },
            {
              "lessThan": "5.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.188",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.121",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.40",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4.5",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: prevent skb corruption on frag list segmentation\n\nIan reported several skb corruptions triggered by rx-gro-list,\ncollecting different oops alike:\n\n[   62.624003] BUG: kernel NULL pointer dereference, address: 00000000000000c0\n[   62.631083] #PF: supervisor read access in kernel mode\n[   62.636312] #PF: error_code(0x0000) - not-present page\n[   62.641541] PGD 0 P4D 0\n[   62.644174] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[   62.648629] CPU: 1 PID: 913 Comm: napi/eno2-79 Not tainted 6.4.0 #364\n[   62.655162] Hardware name: Supermicro Super Server/A2SDi-12C-HLN4F, BIOS 1.7a 10/13/2022\n[   62.663344] RIP: 0010:__udp_gso_segment (./include/linux/skbuff.h:2858\n./include/linux/udp.h:23 net/ipv4/udp_offload.c:228 net/ipv4/udp_offload.c:261\nnet/ipv4/udp_offload.c:277)\n[   62.687193] RSP: 0018:ffffbd3a83b4f868 EFLAGS: 00010246\n[   62.692515] RAX: 00000000000000ce RBX: 0000000000000000 RCX: 0000000000000000\n[   62.699743] RDX: ffffa124def8a000 RSI: 0000000000000079 RDI: ffffa125952a14d4\n[   62.706970] RBP: ffffa124def8a000 R08: 0000000000000022 R09: 00002000001558c9\n[   62.714199] R10: 0000000000000000 R11: 00000000be554639 R12: 00000000000000e2\n[   62.721426] R13: ffffa125952a1400 R14: ffffa125952a1400 R15: 00002000001558c9\n[   62.728654] FS:  0000000000000000(0000) GS:ffffa127efa40000(0000)\nknlGS:0000000000000000\n[   62.736852] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   62.742702] CR2: 00000000000000c0 CR3: 00000001034b0000 CR4: 00000000003526e0\n[   62.749948] Call Trace:\n[   62.752498]  \u003cTASK\u003e\n[   62.779267] inet_gso_segment (net/ipv4/af_inet.c:1398)\n[   62.787605] skb_mac_gso_segment (net/core/gro.c:141)\n[   62.791906] __skb_gso_segment (net/core/dev.c:3403 (discriminator 2))\n[   62.800492] validate_xmit_skb (./include/linux/netdevice.h:4862\nnet/core/dev.c:3659)\n[   62.804695] validate_xmit_skb_list (net/core/dev.c:3710)\n[   62.809158] sch_direct_xmit (net/sched/sch_generic.c:330)\n[   62.813198] __dev_queue_xmit (net/core/dev.c:3805 net/core/dev.c:4210)\nnet/netfilter/core.c:626)\n[   62.821093] br_dev_queue_push_xmit (net/bridge/br_forward.c:55)\n[   62.825652] maybe_deliver (net/bridge/br_forward.c:193)\n[   62.829420] br_flood (net/bridge/br_forward.c:233)\n[   62.832758] br_handle_frame_finish (net/bridge/br_input.c:215)\n[   62.837403] br_handle_frame (net/bridge/br_input.c:298\nnet/bridge/br_input.c:416)\n[   62.851417] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5387)\n[   62.866114] __netif_receive_skb_list_core (net/core/dev.c:5570)\n[   62.871367] netif_receive_skb_list_internal (net/core/dev.c:5638\nnet/core/dev.c:5727)\n[   62.876795] napi_complete_done (./include/linux/list.h:37\n./include/net/gro.h:434 ./include/net/gro.h:429 net/core/dev.c:6067)\n[   62.881004] ixgbe_poll (drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:3191)\n[   62.893534] __napi_poll (net/core/dev.c:6498)\n[   62.897133] napi_threaded_poll (./include/linux/netpoll.h:89\nnet/core/dev.c:6640)\n[   62.905276] kthread (kernel/kthread.c:379)\n[   62.913435] ret_from_fork (arch/x86/entry/entry_64.S:314)\n[   62.917119]  \u003c/TASK\u003e\n\nIn the critical scenario, rx-gro-list GRO-ed packets are fed, via a\nbridge, both to the local input path and to an egress device (tun).\n\nThe segmentation of such packets unsafely writes to the cloned skbs\nwith shared heads.\n\nThis change addresses the issue by uncloning as needed the\nto-be-segmented skbs."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable code is reached purely by processing packets received from the network \u2014 GRO aggregation on an ingress NIC with rx-gro-list creates the SKB_GSO_FRAGLIST skb, a bridge clones it, and software segmentation on egress corrupts the shared head. No local access is needed; the attacker only sends UDP/TCP frames.\nAC:L - The attacker deterministically creates both preconditions by sending back-to-back same-flow UDP/TCP packets (forcing GRO fraglist aggregation) addressed to an unknown-unicast/broadcast/multicast MAC (forcing br_flood to skb_clone); no race must be won, no memory layout must be guessed, and the corruption of the shared skb_shared_info occurs on every such packet.\nPR:N - The entire path is in the NAPI/softirq receive and bridge-forwarding datapath, executed before any authentication or socket ownership check; an unauthenticated off-host attacker on the network needs no credentials on the target.\nUI:N - Triggering requires no action by any local user or administrator \u2014 ordinary inbound traffic on an already-configured bridged host drives the whole sequence from packet receive to segmentation.\nS:U - The corruption is confined to kernel skb/heap memory managed by the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The unsynchronized write to a cloned skb\u0027s shared_info leads to fraglist skbs being consumed twice and re-headed after free, so segments are built from freed heap memory and transmitted out the egress device, exposing kernel heap contents; a use-after-free of this kind gives attacker leverage over freed object contents.\nI:H - This is a memory-corruption bug by design (\"prevent skb corruption\") \u2014 it writes into a shared skb head still in use by another clone, and __udpv4_gso_segment_list_csum then writes attacker-controlled IP addresses, ports and checksums through pointers derived from a stale/freed skb, yielding a use-after-free write primitive.\nA:H - The reported and reproducible result is a kernel NULL pointer dereference oops in the NAPI kernel thread (CR2=0xc0 in __udp_gso_segment), killing the receive path and panicking on panic_on_oops systems; the concurrent double-free variant likewise crashes the kernel."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:17:11.783Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bc3ab5d2ab69823f5cff89cf74ef78ffa0386c9a"
        },
        {
          "url": "https://git.kernel.org/stable/c/ea438eed94ac0fe69b93ac034738823c0e989a12"
        },
        {
          "url": "https://git.kernel.org/stable/c/1731234e8b60063eae858c77b55c7a88f5084353"
        },
        {
          "url": "https://git.kernel.org/stable/c/7a59f29961cf97b98b02acaadf5a0b1f8dde938c"
        },
        {
          "url": "https://git.kernel.org/stable/c/c329b261afe71197d9da83c1f18eb45a7e97e089"
        }
      ],
      "title": "net: prevent skb corruption on frag list segmentation",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54094",
    "datePublished": "2025-12-24T13:06:22.446Z",
    "dateReserved": "2025-12-24T13:02:52.516Z",
    "dateUpdated": "2026-08-05T09:17:11.783Z",
    "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.
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