Vulnerability-Lookup

BDU:2026-04627 (CVE-2023-53100)

Vulnerability from fstec – Published: 2026-04-03 – Updated: 2026-04-03 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции ext4_expand_extra_isize_ea() модуля fs/ext4/xattr.c файловой системы Ext4 ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции ext4_expand_extra_isize_ea() модуля fs/ext4/xattr.c файловой системы Ext4 ядра операционной системы Linux связана с недостаточной проверкой подлинности данных. 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

Spoofing

Incidents

Being clarified

Remediation

Software update

CWE

CWE-345 - Недостаточная проверка подлинности данных

Aliases

CVE-2023-53100

References

19 references

URL
https://git.kernel.org/stable/c/c5aa102b433b1890e1ccaa40c06826c77dda1665
https://git.kernel.org/stable/c/92eee6a82a9a6f9f83559e17a2b6b935e1a5cd25
https://git.kernel.org/stable/c/ca500cf2eceb5a8e93bf71ab97b5f7a18ecabce2
https://git.kernel.org/stable/c/a9bd94f67b27739bbe8583c52256502bd4cc7e83
https://git.kernel.org/stable/c/39c5df2ca544368b44b59d0f6d80131e90763371
https://git.kernel.org/stable/c/74d775083e9f3d9dadf9e3b5f3e0028d1ad0bd5c
https://git.kernel.org/stable/c/35161cec76772f74526f5886ad4082ec48511d5c
https://www.cve.org/CVERecord?id=CVE-2023-53100
https://git.kernel.org/linus/2b96b4a5d9443ca4cad58b0040be455803c05a42
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.310
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.278
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.237
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.175
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.103
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.20
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.7
https://security-tracker.debian.org/tracker/CVE-2023-53100
https://access.redhat.com/security/cve/CVE-2023-53100
https://ubuntu.com/security/CVE-2023-53100

Impacted products

4 products from 4 vendors

Vendors

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

Products

Ubuntu, Debian GNU/Linux, Red Hat Enterprise Linux, Linux

Versions

16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), от 5.16 до 6.1.19 включительно (Linux), от 5.11 до 5.15.102 включительно (Linux), от 4.15 до 4.19.277 включительно (Linux), от 4.20 до 5.4.236 включительно (Linux), от 5.5 до 5.10.174 включительно (Linux), от 6.2 до 6.2.6 включительно (Linux), от 3.8 до 4.14.309 включительно (Linux)

Product types

Operating system

Platforms

Canonical Ltd. Ubuntu 16.04 LTS, Canonical Ltd. Ubuntu 18.04 LTS, Canonical Ltd. Ubuntu 20.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Canonical Ltd. Ubuntu 22.04 LTS, Red Hat, Inc. Red Hat Enterprise Linux 9, Сообщество свободного программного обеспечения Linux от 5.16 до 6.1.19 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.102 включительно, Сообщество свободного программного обеспечения Linux от 4.15 до 4.19.277 включительно, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.236 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.174 включительно, Сообщество свободного программного обеспечения Linux от 6.2 до 6.2.6 включительно, Сообщество свободного программного обеспечения Linux от 3.8 до 4.14.309 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://git.kernel.org/stable/c/c5aa102b433b1890e1ccaa40c06826c77dda1665 https://git.kernel.org/stable/c/92eee6a82a9a6f9f83559e17a2b6b935e1a5cd25 https://git.kernel.org/stable/c/ca500cf2eceb5a8e93bf71ab97b5f7a18ecabce2 https://git.kernel.org/stable/c/a9bd94f67b27739bbe8583c52256502bd4cc7e83 https://git.kernel.org/stable/c/39c5df2ca544368b44b59d0f6d80131e90763371 https://git.kernel.org/stable/c/74d775083e9f3d9dadf9e3b5f3e0028d1ad0bd5c https://git.kernel.org/stable/c/35161cec76772f74526f5886ad4082ec48511d5c https://git.kernel.org/linus/2b96b4a5d9443ca4cad58b0040be455803c05a42 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.310 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.278 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.237 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.175 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.103 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.20 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.7 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2023-53100 Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/CVE-2023-53100 Для Ubuntu: https://ubuntu.com/security/CVE-2023-53100

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., \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, Red Hat, Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), \u043e\u0442 5.16 \u0434\u043e 6.1.19 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.102 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.277 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.236 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.174 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 6.2 \u0434\u043e 6.2.6 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 3.8 \u0434\u043e 4.14.309 \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:\n\nhttps://git.kernel.org/stable/c/c5aa102b433b1890e1ccaa40c06826c77dda1665\n\nhttps://git.kernel.org/stable/c/92eee6a82a9a6f9f83559e17a2b6b935e1a5cd25\n\nhttps://git.kernel.org/stable/c/ca500cf2eceb5a8e93bf71ab97b5f7a18ecabce2\n\nhttps://git.kernel.org/stable/c/a9bd94f67b27739bbe8583c52256502bd4cc7e83\n\nhttps://git.kernel.org/stable/c/39c5df2ca544368b44b59d0f6d80131e90763371\n\nhttps://git.kernel.org/stable/c/74d775083e9f3d9dadf9e3b5f3e0028d1ad0bd5c\n\nhttps://git.kernel.org/stable/c/35161cec76772f74526f5886ad4082ec48511d5c\n\n\nhttps://git.kernel.org/linus/2b96b4a5d9443ca4cad58b0040be455803c05a42\n\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.310\n\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.278\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.237\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.175\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.103\n\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.20\n\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.7\n\n\u0414\u043b\u044f Debian GNU/Linux:\n\nhttps://security-tracker.debian.org/tracker/CVE-2023-53100\n\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.:\n\nhttps://access.redhat.com/security/cve/CVE-2023-53100\n\n\u0414\u043b\u044f Ubuntu:\n\nhttps://ubuntu.com/security/CVE-2023-53100",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "10.03.2023",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "03.04.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "03.04.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-04627",
  "\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-2023-53100",
  "\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, Debian GNU/Linux, Red Hat Enterprise 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": "Canonical Ltd. Ubuntu 16.04 LTS , Canonical Ltd. Ubuntu 18.04 LTS , 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 , Canonical Ltd. Ubuntu 22.04 LTS , 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 5.16 \u0434\u043e 6.1.19 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.11 \u0434\u043e 5.15.102 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 4.15 \u0434\u043e 4.19.277 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 4.20 \u0434\u043e 5.4.236 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.5 \u0434\u043e 5.10.174 \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 6.2.6 \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 3.8 \u0434\u043e 4.14.309 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 ext4_expand_extra_isize_ea() \u043c\u043e\u0434\u0443\u043b\u044f fs/ext4/xattr.c \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Ext4 \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \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 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u043f\u043e\u0434\u043b\u0438\u043d\u043d\u043e\u0441\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 (CWE-345)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 ext4_expand_extra_isize_ea() \u043c\u043e\u0434\u0443\u043b\u044f fs/ext4/xattr.c \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Ext4 \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u043e\u0439 \u043f\u043e\u0434\u043b\u0438\u043d\u043d\u043e\u0441\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0445. \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": "\u041f\u043e\u0434\u043c\u0435\u043d\u0430 \u043f\u0440\u0438 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://git.kernel.org/stable/c/c5aa102b433b1890e1ccaa40c06826c77dda1665\n\nhttps://git.kernel.org/stable/c/92eee6a82a9a6f9f83559e17a2b6b935e1a5cd25\n\nhttps://git.kernel.org/stable/c/ca500cf2eceb5a8e93bf71ab97b5f7a18ecabce2\n\nhttps://git.kernel.org/stable/c/a9bd94f67b27739bbe8583c52256502bd4cc7e83\n\nhttps://git.kernel.org/stable/c/39c5df2ca544368b44b59d0f6d80131e90763371\n\nhttps://git.kernel.org/stable/c/74d775083e9f3d9dadf9e3b5f3e0028d1ad0bd5c\n\nhttps://git.kernel.org/stable/c/35161cec76772f74526f5886ad4082ec48511d5c\n\nhttps://www.cve.org/CVERecord?id=CVE-2023-53100\n\nhttps://git.kernel.org/linus/2b96b4a5d9443ca4cad58b0040be455803c05a42\n\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.310\n\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.278\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.237\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.175\n\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.103\n\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.20\n\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.7\n\nhttps://security-tracker.debian.org/tracker/CVE-2023-53100\n\nhttps://access.redhat.com/security/cve/CVE-2023-53100\n\nhttps://ubuntu.com/security/CVE-2023-53100",
  "\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-345",
  "\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-2023-53100 (GCVE-0-2023-53100)

Vulnerability from cvelistv5 – Published: 2025-05-02 15:55 – Updated: 2026-08-05 09:12

Title

ext4: fix WARNING in ext4_update_inline_data

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: fix WARNING in ext4_update_inline_data Syzbot found the following issue: EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. fscrypt: AES-256-CTS-CBC using implementation "cts-cbc-aes-aesni" fscrypt: AES-256-XTS using implementation "xts-aes-aesni" ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5071 at mm/page_alloc.c:5525 __alloc_pages+0x30a/0x560 mm/page_alloc.c:5525 Modules linked in: CPU: 1 PID: 5071 Comm: syz-executor263 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__alloc_pages+0x30a/0x560 mm/page_alloc.c:5525 RSP: 0018:ffffc90003c2f1c0 EFLAGS: 00010246 RAX: ffffc90003c2f220 RBX: 0000000000000014 RCX: 0000000000000000 RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90003c2f248 RBP: ffffc90003c2f2d8 R08: dffffc0000000000 R09: ffffc90003c2f220 R10: fffff52000785e49 R11: 1ffff92000785e44 R12: 0000000000040d40 R13: 1ffff92000785e40 R14: dffffc0000000000 R15: 1ffff92000785e3c FS: 0000555556c0d300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f95d5e04138 CR3: 00000000793aa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __alloc_pages_node include/linux/gfp.h:237 [inline] alloc_pages_node include/linux/gfp.h:260 [inline] __kmalloc_large_node+0x95/0x1e0 mm/slab_common.c:1113 __do_kmalloc_node mm/slab_common.c:956 [inline] __kmalloc+0xfe/0x190 mm/slab_common.c:981 kmalloc include/linux/slab.h:584 [inline] kzalloc include/linux/slab.h:720 [inline] ext4_update_inline_data+0x236/0x6b0 fs/ext4/inline.c:346 ext4_update_inline_dir fs/ext4/inline.c:1115 [inline] ext4_try_add_inline_entry+0x328/0x990 fs/ext4/inline.c:1307 ext4_add_entry+0x5a4/0xeb0 fs/ext4/namei.c:2385 ext4_add_nondir+0x96/0x260 fs/ext4/namei.c:2772 ext4_create+0x36c/0x560 fs/ext4/namei.c:2817 lookup_open fs/namei.c:3413 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x12ac/0x2dd0 fs/namei.c:3711 do_filp_open+0x264/0x4f0 fs/namei.c:3741 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1337 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Above issue happens as follows: ext4_iget ext4_find_inline_data_nolock ->i_inline_off=164 i_inline_size=60 ext4_try_add_inline_entry __ext4_mark_inode_dirty ext4_expand_extra_isize_ea ->i_extra_isize=32 s_want_extra_isize=44 ext4_xattr_shift_entries ->after shift i_inline_off is incorrect, actually is change to 176 ext4_try_add_inline_entry ext4_update_inline_dir get_max_inline_xattr_value_size if (EXT4_I(inode)->i_inline_off) entry = (struct ext4_xattr_entry *)((void *)raw_inode + EXT4_I(inode)->i_inline_off); free += EXT4_XATTR_SIZE(le32_to_cpu(entry->e_value_size)); ->As entry is incorrect, then 'free' may be negative ext4_update_inline_data value = kzalloc(len, GFP_NOFS); -> len is unsigned int, maybe very large, then trigger warning when 'kzalloc()' To resolve the above issue we need to update 'i_inline_off' after 'ext4_xattr_shift_entries()'. We do not need to set EXT4_STATE_MAY_INLINE_DATA flag here, since ext4_mark_inode_dirty() already sets this flag if needed. Setting EXT4_STATE_MAY_INLINE_DATA when it is needed may trigger a BUG_ON in ext4_writepages().

Severity

7.8 (High)


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

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/c5aa102b433b1890e…
https://git.kernel.org/stable/c/39c5df2ca544368b4…
https://git.kernel.org/stable/c/74d775083e9f3d9da…
https://git.kernel.org/stable/c/a9bd94f67b27739bb…
https://git.kernel.org/stable/c/ca500cf2eceb5a8e9…
https://git.kernel.org/stable/c/35161cec76772f745…
https://git.kernel.org/stable/c/92eee6a82a9a6f9f8…
https://git.kernel.org/stable/c/2b96b4a5d9443ca4c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 67cf5b09a46f72e048501b84996f2f77bc42e947 , < c5aa102b433b1890e1ccaa40c06826c77dda1665 (git) Affected: 67cf5b09a46f72e048501b84996f2f77bc42e947 , < 39c5df2ca544368b44b59d0f6d80131e90763371 (git) Affected: 67cf5b09a46f72e048501b84996f2f77bc42e947 , < 74d775083e9f3d9dadf9e3b5f3e0028d1ad0bd5c (git) Affected: 67cf5b09a46f72e048501b84996f2f77bc42e947 , < a9bd94f67b27739bbe8583c52256502bd4cc7e83 (git) Affected: 67cf5b09a46f72e048501b84996f2f77bc42e947 , < ca500cf2eceb5a8e93bf71ab97b5f7a18ecabce2 (git) Affected: 67cf5b09a46f72e048501b84996f2f77bc42e947 , < 35161cec76772f74526f5886ad4082ec48511d5c (git) Affected: 67cf5b09a46f72e048501b84996f2f77bc42e947 , < 92eee6a82a9a6f9f83559e17a2b6b935e1a5cd25 (git) Affected: 67cf5b09a46f72e048501b84996f2f77bc42e947 , < 2b96b4a5d9443ca4cad58b0040be455803c05a42 (git)
Linux	Linux	Affected: 3.8 Unaffected: 0 , < 3.8 (semver) Unaffected: 4.14.310 , ≤ 4.14.* (semver) Unaffected: 4.19.278 , ≤ 4.19.* (semver) Unaffected: 5.4.237 , ≤ 5.4.* (semver) Unaffected: 5.10.175 , ≤ 5.10.* (semver) Unaffected: 5.15.103 , ≤ 5.15.* (semver) Unaffected: 6.1.20 , ≤ 6.1.* (semver) Unaffected: 6.2.7 , ≤ 6.2.* (semver) Unaffected: 6.3 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/xattr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c5aa102b433b1890e1ccaa40c06826c77dda1665",
              "status": "affected",
              "version": "67cf5b09a46f72e048501b84996f2f77bc42e947",
              "versionType": "git"
            },
            {
              "lessThan": "39c5df2ca544368b44b59d0f6d80131e90763371",
              "status": "affected",
              "version": "67cf5b09a46f72e048501b84996f2f77bc42e947",
              "versionType": "git"
            },
            {
              "lessThan": "74d775083e9f3d9dadf9e3b5f3e0028d1ad0bd5c",
              "status": "affected",
              "version": "67cf5b09a46f72e048501b84996f2f77bc42e947",
              "versionType": "git"
            },
            {
              "lessThan": "a9bd94f67b27739bbe8583c52256502bd4cc7e83",
              "status": "affected",
              "version": "67cf5b09a46f72e048501b84996f2f77bc42e947",
              "versionType": "git"
            },
            {
              "lessThan": "ca500cf2eceb5a8e93bf71ab97b5f7a18ecabce2",
              "status": "affected",
              "version": "67cf5b09a46f72e048501b84996f2f77bc42e947",
              "versionType": "git"
            },
            {
              "lessThan": "35161cec76772f74526f5886ad4082ec48511d5c",
              "status": "affected",
              "version": "67cf5b09a46f72e048501b84996f2f77bc42e947",
              "versionType": "git"
            },
            {
              "lessThan": "92eee6a82a9a6f9f83559e17a2b6b935e1a5cd25",
              "status": "affected",
              "version": "67cf5b09a46f72e048501b84996f2f77bc42e947",
              "versionType": "git"
            },
            {
              "lessThan": "2b96b4a5d9443ca4cad58b0040be455803c05a42",
              "status": "affected",
              "version": "67cf5b09a46f72e048501b84996f2f77bc42e947",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/xattr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.8"
            },
            {
              "lessThan": "3.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.310",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.278",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.237",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.310",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.278",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.237",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.175",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.103",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.20",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.7",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix WARNING in ext4_update_inline_data\n\nSyzbot found the following issue:\nEXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none.\nfscrypt: AES-256-CTS-CBC using implementation \"cts-cbc-aes-aesni\"\nfscrypt: AES-256-XTS using implementation \"xts-aes-aesni\"\n------------[ cut here ]------------\nWARNING: CPU: 0 PID: 5071 at mm/page_alloc.c:5525 __alloc_pages+0x30a/0x560 mm/page_alloc.c:5525\nModules linked in:\nCPU: 1 PID: 5071 Comm: syz-executor263 Not tainted 6.2.0-rc1-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\nRIP: 0010:__alloc_pages+0x30a/0x560 mm/page_alloc.c:5525\nRSP: 0018:ffffc90003c2f1c0 EFLAGS: 00010246\nRAX: ffffc90003c2f220 RBX: 0000000000000014 RCX: 0000000000000000\nRDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90003c2f248\nRBP: ffffc90003c2f2d8 R08: dffffc0000000000 R09: ffffc90003c2f220\nR10: fffff52000785e49 R11: 1ffff92000785e44 R12: 0000000000040d40\nR13: 1ffff92000785e40 R14: dffffc0000000000 R15: 1ffff92000785e3c\nFS:  0000555556c0d300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f95d5e04138 CR3: 00000000793aa000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n __alloc_pages_node include/linux/gfp.h:237 [inline]\n alloc_pages_node include/linux/gfp.h:260 [inline]\n __kmalloc_large_node+0x95/0x1e0 mm/slab_common.c:1113\n __do_kmalloc_node mm/slab_common.c:956 [inline]\n __kmalloc+0xfe/0x190 mm/slab_common.c:981\n kmalloc include/linux/slab.h:584 [inline]\n kzalloc include/linux/slab.h:720 [inline]\n ext4_update_inline_data+0x236/0x6b0 fs/ext4/inline.c:346\n ext4_update_inline_dir fs/ext4/inline.c:1115 [inline]\n ext4_try_add_inline_entry+0x328/0x990 fs/ext4/inline.c:1307\n ext4_add_entry+0x5a4/0xeb0 fs/ext4/namei.c:2385\n ext4_add_nondir+0x96/0x260 fs/ext4/namei.c:2772\n ext4_create+0x36c/0x560 fs/ext4/namei.c:2817\n lookup_open fs/namei.c:3413 [inline]\n open_last_lookups fs/namei.c:3481 [inline]\n path_openat+0x12ac/0x2dd0 fs/namei.c:3711\n do_filp_open+0x264/0x4f0 fs/namei.c:3741\n do_sys_openat2+0x124/0x4e0 fs/open.c:1310\n do_sys_open fs/open.c:1326 [inline]\n __do_sys_openat fs/open.c:1342 [inline]\n __se_sys_openat fs/open.c:1337 [inline]\n __x64_sys_openat+0x243/0x290 fs/open.c:1337\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nAbove issue happens as follows:\next4_iget\n   ext4_find_inline_data_nolock -\u003ei_inline_off=164 i_inline_size=60\next4_try_add_inline_entry\n   __ext4_mark_inode_dirty\n      ext4_expand_extra_isize_ea -\u003ei_extra_isize=32 s_want_extra_isize=44\n         ext4_xattr_shift_entries\n\t -\u003eafter shift i_inline_off is incorrect, actually is change to 176\next4_try_add_inline_entry\n  ext4_update_inline_dir\n    get_max_inline_xattr_value_size\n      if (EXT4_I(inode)-\u003ei_inline_off)\n\tentry = (struct ext4_xattr_entry *)((void *)raw_inode +\n\t\t\tEXT4_I(inode)-\u003ei_inline_off);\n        free += EXT4_XATTR_SIZE(le32_to_cpu(entry-\u003ee_value_size));\n\t-\u003eAs entry is incorrect, then \u0027free\u0027 may be negative\n   ext4_update_inline_data\n      value = kzalloc(len, GFP_NOFS);\n      -\u003e len is unsigned int, maybe very large, then trigger warning when\n         \u0027kzalloc()\u0027\n\nTo resolve the above issue we need to update \u0027i_inline_off\u0027 after\n\u0027ext4_xattr_shift_entries()\u0027.  We do not need to set\nEXT4_STATE_MAY_INLINE_DATA flag here, since ext4_mark_inode_dirty()\nalready sets this flag if needed.  Setting EXT4_STATE_MAY_INLINE_DATA\nwhen it is needed may trigger a BUG_ON in ext4_writepages()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached via local VFS syscalls (openat/create \u2192 ext4_try_add_inline_entry / readdir \u2192 inline data helpers) on a mounted ext4 filesystem, not via any network or adjacent-link protocol path.\nAC:L - An attacker who can create files in an inline_data directory whose inode still needs extra-isize expansion (common after kernel upgrades, or forced via debug_want_extra_isize) can reliably trigger the stale i_inline_off path; no attacker-uncontrollable race is required.\nPR:L - On an already-mounted ext4 volume (e.g. Android userdata or /home) the trigger is ordinary unprivileged file creation/readdir with write access; unlike SWAP_BOOT-style paths, no init-namespace CAP_SYS_ADMIN is required on this entry point.\nUI:N - The attacker performs the create/readdir operations themselves on a filesystem that is already mounted in the worst reasonable deployment; no separate victim action is required.\nS:U - Impact remains within the host kernel\u0027s ext4/VFS authority (local memory corruption / DoS); there is no VM escape, IOMMU bypass, or other cross-authority boundary crossing.\nC:H - Stale i_inline_off causes ext4_read_inline_data to treat attacker-influenced inode bytes as e_value_offs and memcpy from IFIRST+offs with no bounds check, yielding an out-of-bounds kernel read into directory buffers.\nI:H - The same stale offset is consumed by ext4_get_inline_xattr_pos \u2192 ext4_add_dirent_to_inline, which writes directory entries to an unchecked IFIRST+e_value_offs destination\u2014an out-of-bounds kernel write exploitable for corruption/control-flow hijack.\nA:H - The demonstrated path computes a huge unsigned kzalloc length and hits WARN_ON_ONCE in __alloc_pages (panic_on_warn / oops class), and the OOB inline-data paths can likewise crash the kernel."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:12:46.679Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c5aa102b433b1890e1ccaa40c06826c77dda1665"
        },
        {
          "url": "https://git.kernel.org/stable/c/39c5df2ca544368b44b59d0f6d80131e90763371"
        },
        {
          "url": "https://git.kernel.org/stable/c/74d775083e9f3d9dadf9e3b5f3e0028d1ad0bd5c"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9bd94f67b27739bbe8583c52256502bd4cc7e83"
        },
        {
          "url": "https://git.kernel.org/stable/c/ca500cf2eceb5a8e93bf71ab97b5f7a18ecabce2"
        },
        {
          "url": "https://git.kernel.org/stable/c/35161cec76772f74526f5886ad4082ec48511d5c"
        },
        {
          "url": "https://git.kernel.org/stable/c/92eee6a82a9a6f9f83559e17a2b6b935e1a5cd25"
        },
        {
          "url": "https://git.kernel.org/stable/c/2b96b4a5d9443ca4cad58b0040be455803c05a42"
        }
      ],
      "title": "ext4: fix WARNING in ext4_update_inline_data",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53100",
    "datePublished": "2025-05-02T15:55:43.113Z",
    "dateReserved": "2025-05-02T15:51:43.553Z",
    "dateUpdated": "2026-08-05T09:12:46.679Z",
    "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

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.