Vulnerability-Lookup

BDU:2026-01393 (CVE-2023-53728)

Vulnerability from fstec – Published: 2026-02-08 – Updated: 2026-02-08 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции posix_timer_by_id() модуля kernel/time/posix-timers.c подсистемы таймера ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции posix_timer_by_id() модуля kernel/time/posix-timers.c подсистемы таймера ядра операционной системы Linux связана с распределением ресурсов без ограничений и регулирования. 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

Resource exhaustion

Incidents

Being clarified

Remediation

Software update

CWE

CWE-770 - Неограниченное распределение ресурсов или дросселирование

Aliases

CVE-2023-53728

References

19 references

URL
https://www.cve.org/CVERecord?id=CVE-2023-53728
https://git.kernel.org/stable/c/8dc52c200b889bc1cb34288fbf623d4ff381d2ae
https://git.kernel.org/stable/c/9ea26a8494a0a9337e7415eafd6f3ed940327dc5
https://git.kernel.org/stable/c/8ad6679a5bb97cdb3e14942729292b4bfcc0e223
https://git.kernel.org/stable/c/322377cc909defcca9451487484845e7e1d20d1b
https://git.kernel.org/stable/c/ef535e0315afd098c4beb1da364847eca4b56a20
https://git.kernel.org/stable/c/6a0ac84501b4fec73a1a823c55cf13584c43f418
https://git.kernel.org/stable/c/37175e25edf7cc0d5a2cd2c2a1cbe2dcbf4a1937
https://git.kernel.org/linus/8ce8849dd1e78dadcee0ec9acbd259d239b7069f
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.322
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.251
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.150
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.107
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.7
https://lore.kernel.org/linux-cve-announce/2025102216-CVE-2023-53728-b851@gregkh/
https://security-tracker.debian.org/tracker/CVE-2023-53728
https://access.redhat.com/security/cve/cve-2023-53728

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 5.5 до 5.10.187 включительно (Linux), от 6.2 до 6.4.6 включительно (Linux), от 4.15 до 4.19.290 включительно (Linux), от 4.20 до 5.4.250 включительно (Linux), от 5.11 до 5.15.149 включительно (Linux), от 5.16 до 6.1.106 включительно (Linux), от 3.10 до 4.14.321 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 5.5 до 5.10.187 включительно, Сообщество свободного программного обеспечения Linux от 6.2 до 6.4.6 включительно, Сообщество свободного программного обеспечения Linux от 4.15 до 4.19.290 включительно, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.250 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.149 включительно, Сообщество свободного программного обеспечения Linux от 5.16 до 6.1.106 включительно, Сообщество свободного программного обеспечения Linux от 3.10 до 4.14.321 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/2025102216-CVE-2023-53728-b851@gregkh/ https://git.kernel.org/stable/c/8dc52c200b889bc1cb34288fbf623d4ff381d2ae https://git.kernel.org/stable/c/9ea26a8494a0a9337e7415eafd6f3ed940327dc5 https://git.kernel.org/stable/c/8ad6679a5bb97cdb3e14942729292b4bfcc0e223 https://git.kernel.org/stable/c/322377cc909defcca9451487484845e7e1d20d1b https://git.kernel.org/stable/c/ef535e0315afd098c4beb1da364847eca4b56a20 https://git.kernel.org/stable/c/6a0ac84501b4fec73a1a823c55cf13584c43f418 https://git.kernel.org/stable/c/37175e25edf7cc0d5a2cd2c2a1cbe2dcbf4a1937 https://git.kernel.org/linus/8ce8849dd1e78dadcee0ec9acbd259d239b7069f https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.322 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.251 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.150 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.107 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.7 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2023-53728 Для продуктов Red Hat Inc.: https://access.redhat.com/security/cve/cve-2023-53728

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 5.5 \u0434\u043e 5.10.187 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 6.2 \u0434\u043e 6.4.6 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.290 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.250 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.149 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.16 \u0434\u043e 6.1.106 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 3.10 \u0434\u043e 4.14.321 \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/2025102216-CVE-2023-53728-b851@gregkh/\nhttps://git.kernel.org/stable/c/8dc52c200b889bc1cb34288fbf623d4ff381d2ae\nhttps://git.kernel.org/stable/c/9ea26a8494a0a9337e7415eafd6f3ed940327dc5\nhttps://git.kernel.org/stable/c/8ad6679a5bb97cdb3e14942729292b4bfcc0e223\nhttps://git.kernel.org/stable/c/322377cc909defcca9451487484845e7e1d20d1b\nhttps://git.kernel.org/stable/c/ef535e0315afd098c4beb1da364847eca4b56a20\nhttps://git.kernel.org/stable/c/6a0ac84501b4fec73a1a823c55cf13584c43f418\nhttps://git.kernel.org/stable/c/37175e25edf7cc0d5a2cd2c2a1cbe2dcbf4a1937\nhttps://git.kernel.org/linus/8ce8849dd1e78dadcee0ec9acbd259d239b7069f\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.322\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.251\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.150\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.107\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.7\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2023-53728\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat Inc.:\nhttps://access.redhat.com/security/cve/cve-2023-53728",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "18.06.2023",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "08.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "08.02.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-01393",
  "\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-2023-53728",
  "\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 5.5 \u0434\u043e 5.10.187 \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 6.4.6 \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 4.15 \u0434\u043e 4.19.290 \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 5.4.250 \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 5.15.149 \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 6.1.106 \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 3.10 \u0434\u043e 4.14.321 \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 posix_timer_by_id() \u043c\u043e\u0434\u0443\u043b\u044f kernel/time/posix-timers.c \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0442\u0430\u0439\u043c\u0435\u0440\u0430 \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\u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u043e\u0435 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432 \u0438\u043b\u0438 \u0434\u0440\u043e\u0441\u0441\u0435\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 (CWE-770)",
  "\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 posix_timer_by_id() \u043c\u043e\u0434\u0443\u043b\u044f kernel/time/posix-timers.c \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0442\u0430\u0439\u043c\u0435\u0440\u0430 \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\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435\u043c \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432 \u0431\u0435\u0437 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u0438 \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \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": "\u0418\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://www.cve.org/CVERecord?id=CVE-2023-53728\nhttps://git.kernel.org/stable/c/8dc52c200b889bc1cb34288fbf623d4ff381d2ae\nhttps://git.kernel.org/stable/c/9ea26a8494a0a9337e7415eafd6f3ed940327dc5\nhttps://git.kernel.org/stable/c/8ad6679a5bb97cdb3e14942729292b4bfcc0e223\nhttps://git.kernel.org/stable/c/322377cc909defcca9451487484845e7e1d20d1b\nhttps://git.kernel.org/stable/c/ef535e0315afd098c4beb1da364847eca4b56a20\nhttps://git.kernel.org/stable/c/6a0ac84501b4fec73a1a823c55cf13584c43f418\nhttps://git.kernel.org/stable/c/37175e25edf7cc0d5a2cd2c2a1cbe2dcbf4a1937\nhttps://git.kernel.org/linus/8ce8849dd1e78dadcee0ec9acbd259d239b7069f\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.322\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.251\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.150\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.107\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.7\nhttps://lore.kernel.org/linux-cve-announce/2025102216-CVE-2023-53728-b851@gregkh/\nhttps://security-tracker.debian.org/tracker/CVE-2023-53728\nhttps://access.redhat.com/security/cve/cve-2023-53728",
  "\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-770",
  "\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-2023-53728 (GCVE-0-2023-53728)

Vulnerability from cvelistv5 – Published: 2025-10-22 13:23 – Updated: 2026-05-11 19:50

Title

posix-timers: Ensure timer ID search-loop limit is valid

Summary

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Ensure timer ID search-loop limit is valid posix_timer_add() tries to allocate a posix timer ID by starting from the cached ID which was stored by the last successful allocation. This is done in a loop searching the ID space for a free slot one by one. The loop has to terminate when the search wrapped around to the starting point. But that's racy vs. establishing the starting point. That is read out lockless, which leads to the following problem: CPU0 CPU1 posix_timer_add() start = sig->posix_timer_id; lock(hash_lock); ... posix_timer_add() if (++sig->posix_timer_id < 0) start = sig->posix_timer_id; sig->posix_timer_id = 0; So CPU1 can observe a negative start value, i.e. -1, and the loop break never happens because the condition can never be true: if (sig->posix_timer_id == start) break; While this is unlikely to ever turn into an endless loop as the ID space is huge (INT_MAX), the racy read of the start value caught the attention of KCSAN and Dmitry unearthed that incorrectness. Rewrite it so that all id operations are under the hash lock.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/8dc52c200b889bc1c…
https://git.kernel.org/stable/c/9ea26a8494a0a9337…
https://git.kernel.org/stable/c/8ad6679a5bb97cdb3…
https://git.kernel.org/stable/c/322377cc909defcca…
https://git.kernel.org/stable/c/ef535e0315afd098c…
https://git.kernel.org/stable/c/6a0ac84501b4fec73…
https://git.kernel.org/stable/c/37175e25edf7cc0d5…
https://git.kernel.org/stable/c/8ce8849dd1e78dadc…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5ed67f05f66c41e39880a6d61358438a25f9fee5 , < 8dc52c200b889bc1cb34288fbf623d4ff381d2ae (git) Affected: 5ed67f05f66c41e39880a6d61358438a25f9fee5 , < 9ea26a8494a0a9337e7415eafd6f3ed940327dc5 (git) Affected: 5ed67f05f66c41e39880a6d61358438a25f9fee5 , < 8ad6679a5bb97cdb3e14942729292b4bfcc0e223 (git) Affected: 5ed67f05f66c41e39880a6d61358438a25f9fee5 , < 322377cc909defcca9451487484845e7e1d20d1b (git) Affected: 5ed67f05f66c41e39880a6d61358438a25f9fee5 , < ef535e0315afd098c4beb1da364847eca4b56a20 (git) Affected: 5ed67f05f66c41e39880a6d61358438a25f9fee5 , < 6a0ac84501b4fec73a1a823c55cf13584c43f418 (git) Affected: 5ed67f05f66c41e39880a6d61358438a25f9fee5 , < 37175e25edf7cc0d5a2cd2c2a1cbe2dcbf4a1937 (git) Affected: 5ed67f05f66c41e39880a6d61358438a25f9fee5 , < 8ce8849dd1e78dadcee0ec9acbd259d239b7069f (git)
Linux	Linux	Affected: 3.10 Unaffected: 0 , < 3.10 (semver) Unaffected: 4.14.322 , ≤ 4.14.* (semver) Unaffected: 4.19.291 , ≤ 4.19.* (semver) Unaffected: 5.4.251 , ≤ 5.4.* (semver) Unaffected: 5.10.188 , ≤ 5.10.* (semver) Unaffected: 5.15.150 , ≤ 5.15.* (semver) Unaffected: 6.1.107 , ≤ 6.1.* (semver) Unaffected: 6.4.7 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/sched/signal.h",
            "kernel/time/posix-timers.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8dc52c200b889bc1cb34288fbf623d4ff381d2ae",
              "status": "affected",
              "version": "5ed67f05f66c41e39880a6d61358438a25f9fee5",
              "versionType": "git"
            },
            {
              "lessThan": "9ea26a8494a0a9337e7415eafd6f3ed940327dc5",
              "status": "affected",
              "version": "5ed67f05f66c41e39880a6d61358438a25f9fee5",
              "versionType": "git"
            },
            {
              "lessThan": "8ad6679a5bb97cdb3e14942729292b4bfcc0e223",
              "status": "affected",
              "version": "5ed67f05f66c41e39880a6d61358438a25f9fee5",
              "versionType": "git"
            },
            {
              "lessThan": "322377cc909defcca9451487484845e7e1d20d1b",
              "status": "affected",
              "version": "5ed67f05f66c41e39880a6d61358438a25f9fee5",
              "versionType": "git"
            },
            {
              "lessThan": "ef535e0315afd098c4beb1da364847eca4b56a20",
              "status": "affected",
              "version": "5ed67f05f66c41e39880a6d61358438a25f9fee5",
              "versionType": "git"
            },
            {
              "lessThan": "6a0ac84501b4fec73a1a823c55cf13584c43f418",
              "status": "affected",
              "version": "5ed67f05f66c41e39880a6d61358438a25f9fee5",
              "versionType": "git"
            },
            {
              "lessThan": "37175e25edf7cc0d5a2cd2c2a1cbe2dcbf4a1937",
              "status": "affected",
              "version": "5ed67f05f66c41e39880a6d61358438a25f9fee5",
              "versionType": "git"
            },
            {
              "lessThan": "8ce8849dd1e78dadcee0ec9acbd259d239b7069f",
              "status": "affected",
              "version": "5ed67f05f66c41e39880a6d61358438a25f9fee5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/linux/sched/signal.h",
            "kernel/time/posix-timers.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "lessThan": "3.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.322",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.291",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.251",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.150",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.107",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.7",
              "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": "4.14.322",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.291",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.251",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.188",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.150",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.107",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4.7",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nposix-timers: Ensure timer ID search-loop limit is valid\n\nposix_timer_add() tries to allocate a posix timer ID by starting from the\ncached ID which was stored by the last successful allocation.\n\nThis is done in a loop searching the ID space for a free slot one by\none. The loop has to terminate when the search wrapped around to the\nstarting point.\n\nBut that\u0027s racy vs. establishing the starting point. That is read out\nlockless, which leads to the following problem:\n\nCPU0\t  \t      \t     \t   CPU1\nposix_timer_add()\n  start = sig-\u003eposix_timer_id;\n  lock(hash_lock);\n  ...\t\t\t\t   posix_timer_add()\n  if (++sig-\u003eposix_timer_id \u003c 0)\n      \t\t\t             start = sig-\u003eposix_timer_id;\n     sig-\u003eposix_timer_id = 0;\n\nSo CPU1 can observe a negative start value, i.e. -1, and the loop break\nnever happens because the condition can never be true:\n\n  if (sig-\u003eposix_timer_id == start)\n     break;\n\nWhile this is unlikely to ever turn into an endless loop as the ID space is\nhuge (INT_MAX), the racy read of the start value caught the attention of\nKCSAN and Dmitry unearthed that incorrectness.\n\nRewrite it so that all id operations are under the hash lock."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:50:42.429Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8dc52c200b889bc1cb34288fbf623d4ff381d2ae"
        },
        {
          "url": "https://git.kernel.org/stable/c/9ea26a8494a0a9337e7415eafd6f3ed940327dc5"
        },
        {
          "url": "https://git.kernel.org/stable/c/8ad6679a5bb97cdb3e14942729292b4bfcc0e223"
        },
        {
          "url": "https://git.kernel.org/stable/c/322377cc909defcca9451487484845e7e1d20d1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef535e0315afd098c4beb1da364847eca4b56a20"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a0ac84501b4fec73a1a823c55cf13584c43f418"
        },
        {
          "url": "https://git.kernel.org/stable/c/37175e25edf7cc0d5a2cd2c2a1cbe2dcbf4a1937"
        },
        {
          "url": "https://git.kernel.org/stable/c/8ce8849dd1e78dadcee0ec9acbd259d239b7069f"
        }
      ],
      "title": "posix-timers: Ensure timer ID search-loop limit is valid",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53728",
    "datePublished": "2025-10-22T13:23:57.127Z",
    "dateReserved": "2025-10-22T13:21:37.348Z",
    "dateUpdated": "2026-05-11T19:50:42.429Z",
    "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.