Vulnerability-Lookup

BDU:2026-04587

Vulnerability from fstec - Published: 14.08.2023

Title

Уязвимость функции cifs_readpage_worker() модуля fs/smb/client/file.c поддержки клиента SMB ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Description

Уязвимость функции cifs_readpage_worker() модуля fs/smb/client/file.c поддержки клиента SMB ядра операционной системы Linux связана с возникновением взаимной блокировки. Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании

Severity


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

Vendor

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

Software Name

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

Software Version

16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), 8 (Red Hat Enterprise Linux), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), от 6.2 до 6.4.11 включительно (Linux), от 5.17 до 6.1.46 включительно (Linux)

Possible Mitigations

В условиях отсутствия обновлений безопасности от производителя рекомендуется придерживаться "Рекомендаций по безопасной настройке операционных систем LINUX", изложенных в методическом документе ФСТЭК России, утверждённом 25 декабря 2022 года. Использование рекомендаций: Для Linux: https://git.kernel.org/stable/c/c3ac8323f2f5b50e32681c254b8318f7fa2dc3f4 https://git.kernel.org/stable/c/5a87735675147f848445f05fd1f06168188f91af https://git.kernel.org/stable/c/4259dd534245579c966c53c15187cc8e9461d6e9 https://git.kernel.org/stable/c/6e74926ede96470be84e66a1c576982fe4f8ea79 https://git.kernel.org/stable/c/961f7ce16223aee2db583a43877d84e6d1f2b857 https://git.kernel.org/stable/c/9e725386d4262ef23ae51993f04602bc535b5be2 https://git.kernel.org/stable/c/7a9fb689c1a1dc373887621a3bfa3810df0abde4 https://git.kernel.org/linus/69513dd669e243928f7450893190915a88f84a2b https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.47 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.12 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2023-53593 Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/CVE-2023-53593 Для Ubuntu: https://ubuntu.com/security/CVE-2023-53593

Reference

https://www.cve.org/CVERecord?id=CVE-2023-53593 https://git.kernel.org/stable/c/c3ac8323f2f5b50e32681c254b8318f7fa2dc3f4 https://git.kernel.org/stable/c/5a87735675147f848445f05fd1f06168188f91af https://git.kernel.org/stable/c/4259dd534245579c966c53c15187cc8e9461d6e9 https://git.kernel.org/stable/c/6e74926ede96470be84e66a1c576982fe4f8ea79 https://git.kernel.org/stable/c/961f7ce16223aee2db583a43877d84e6d1f2b857 https://git.kernel.org/stable/c/9e725386d4262ef23ae51993f04602bc535b5be2 https://git.kernel.org/stable/c/7a9fb689c1a1dc373887621a3bfa3810df0abde4 https://git.kernel.org/linus/69513dd669e243928f7450893190915a88f84a2b https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.47 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.12 https://security-tracker.debian.org/tracker/CVE-2023-53593 https://access.redhat.com/security/cve/CVE-2023-53593 https://ubuntu.com/security/CVE-2023-53593

CWE

CWE-833

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:N/I:N/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Canonical Ltd., Red Hat, Inc., \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": "16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), 8 (Red Hat Enterprise Linux), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), \u043e\u0442 6.2 \u0434\u043e 6.4.11 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.17 \u0434\u043e 6.1.46 \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/c3ac8323f2f5b50e32681c254b8318f7fa2dc3f4\n\nhttps://git.kernel.org/stable/c/5a87735675147f848445f05fd1f06168188f91af\n\nhttps://git.kernel.org/stable/c/4259dd534245579c966c53c15187cc8e9461d6e9\n\nhttps://git.kernel.org/stable/c/6e74926ede96470be84e66a1c576982fe4f8ea79\n\nhttps://git.kernel.org/stable/c/961f7ce16223aee2db583a43877d84e6d1f2b857\n\nhttps://git.kernel.org/stable/c/9e725386d4262ef23ae51993f04602bc535b5be2\n\nhttps://git.kernel.org/stable/c/7a9fb689c1a1dc373887621a3bfa3810df0abde4\n\nhttps://git.kernel.org/linus/69513dd669e243928f7450893190915a88f84a2b\n\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.47\n\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.12\n\n\u0414\u043b\u044f Debian GNU/Linux:\n\nhttps://security-tracker.debian.org/tracker/CVE-2023-53593\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-2023-53593\n\n\n\n\u0414\u043b\u044f Ubuntu:\n\nhttps://ubuntu.com/security/CVE-2023-53593",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "14.08.2023",
  "\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:2026-04587",
  "\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-2023-53593",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Ubuntu, Red Hat Enterprise Linux, 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": "Canonical Ltd. Ubuntu 16.04 LTS , Canonical Ltd. Ubuntu 18.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 8 , Canonical Ltd. Ubuntu 20.04 LTS , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 11 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 12 , 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 6.2 \u0434\u043e 6.4.11 \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 5.17 \u0434\u043e 6.1.46 \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 cifs_readpage_worker() \u043c\u043e\u0434\u0443\u043b\u044f fs/smb/client/file.c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u0430 SMB \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": "\u0417\u0430\u0432\u0438\u0441\u0430\u043d\u0438\u0435 (CWE-833)",
  "\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 cifs_readpage_worker() \u043c\u043e\u0434\u0443\u043b\u044f fs/smb/client/file.c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u0430 SMB \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 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u043e\u0432\u0435\u043d\u0438\u0435\u043c \u0432\u0437\u0430\u0438\u043c\u043d\u043e\u0439 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438. \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-2023-53593\n\nhttps://git.kernel.org/stable/c/c3ac8323f2f5b50e32681c254b8318f7fa2dc3f4\n\nhttps://git.kernel.org/stable/c/5a87735675147f848445f05fd1f06168188f91af\n\nhttps://git.kernel.org/stable/c/4259dd534245579c966c53c15187cc8e9461d6e9\n\nhttps://git.kernel.org/stable/c/6e74926ede96470be84e66a1c576982fe4f8ea79\n\nhttps://git.kernel.org/stable/c/961f7ce16223aee2db583a43877d84e6d1f2b857\n\nhttps://git.kernel.org/stable/c/9e725386d4262ef23ae51993f04602bc535b5be2\n\nhttps://git.kernel.org/stable/c/7a9fb689c1a1dc373887621a3bfa3810df0abde4\n\nhttps://git.kernel.org/linus/69513dd669e243928f7450893190915a88f84a2b\n\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.47\n\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.12\n\nhttps://security-tracker.debian.org/tracker/CVE-2023-53593\n\nhttps://access.redhat.com/security/cve/CVE-2023-53593\n\nhttps://ubuntu.com/security/CVE-2023-53593",
  "\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-833",
  "\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-2023-53593 (GCVE-0-2023-53593)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:44 – Updated: 2026-05-11 19:48

Title

cifs: Release folio lock on fscache read hit.

Summary

In the Linux kernel, the following vulnerability has been resolved: cifs: Release folio lock on fscache read hit. Under the current code, when cifs_readpage_worker is called, the call contract is that the callee should unlock the page. This is documented in the read_folio section of Documentation/filesystems/vfs.rst as: > The filesystem should unlock the folio once the read has completed, > whether it was successful or not. Without this change, when fscache is in use and cache hit occurs during a read, the page lock is leaked, producing the following stack on subsequent reads (via mmap) to the page: $ cat /proc/3890/task/12864/stack [<0>] folio_wait_bit_common+0x124/0x350 [<0>] filemap_read_folio+0xad/0xf0 [<0>] filemap_fault+0x8b1/0xab0 [<0>] __do_fault+0x39/0x150 [<0>] do_fault+0x25c/0x3e0 [<0>] __handle_mm_fault+0x6ca/0xc70 [<0>] handle_mm_fault+0xe9/0x350 [<0>] do_user_addr_fault+0x225/0x6c0 [<0>] exc_page_fault+0x84/0x1b0 [<0>] asm_exc_page_fault+0x27/0x30 This requires a reboot to resolve; it is a deadlock. Note however that the call to cifs_readpage_from_fscache does mark the page clean, but does not free the folio lock. This happens in __cifs_readpage_from_fscache on success. Releasing the lock at that point however is not appropriate as cifs_readahead also calls cifs_readpage_from_fscache and *does* unconditionally release the lock after its return. This change therefore effectively makes cifs_readpage_worker work like cifs_readahead.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/9e725386d4262ef23…
https://git.kernel.org/stable/c/7a9fb689c1a1dc373…
https://git.kernel.org/stable/c/69513dd669e243928…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0174ee9947bd0f24fee2794b35258960d108b7aa , < 9e725386d4262ef23ae51993f04602bc535b5be2 (git) Affected: 0174ee9947bd0f24fee2794b35258960d108b7aa , < 7a9fb689c1a1dc373887621a3bfa3810df0abde4 (git) Affected: 0174ee9947bd0f24fee2794b35258960d108b7aa , < 69513dd669e243928f7450893190915a88f84a2b (git)
Linux	Linux	Affected: 5.17 Unaffected: 0 , < 5.17 (semver) Unaffected: 6.1.47 , ≤ 6.1.* (semver) Unaffected: 6.4.12 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9e725386d4262ef23ae51993f04602bc535b5be2",
              "status": "affected",
              "version": "0174ee9947bd0f24fee2794b35258960d108b7aa",
              "versionType": "git"
            },
            {
              "lessThan": "7a9fb689c1a1dc373887621a3bfa3810df0abde4",
              "status": "affected",
              "version": "0174ee9947bd0f24fee2794b35258960d108b7aa",
              "versionType": "git"
            },
            {
              "lessThan": "69513dd669e243928f7450893190915a88f84a2b",
              "status": "affected",
              "version": "0174ee9947bd0f24fee2794b35258960d108b7aa",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.12",
              "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": "6.1.47",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4.12",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Release folio lock on fscache read hit.\n\nUnder the current code, when cifs_readpage_worker is called, the call\ncontract is that the callee should unlock the page. This is documented\nin the read_folio section of Documentation/filesystems/vfs.rst as:\n\n\u003e The filesystem should unlock the folio once the read has completed,\n\u003e whether it was successful or not.\n\nWithout this change, when fscache is in use and cache hit occurs during\na read, the page lock is leaked, producing the following stack on\nsubsequent reads (via mmap) to the page:\n\n$ cat /proc/3890/task/12864/stack\n[\u003c0\u003e] folio_wait_bit_common+0x124/0x350\n[\u003c0\u003e] filemap_read_folio+0xad/0xf0\n[\u003c0\u003e] filemap_fault+0x8b1/0xab0\n[\u003c0\u003e] __do_fault+0x39/0x150\n[\u003c0\u003e] do_fault+0x25c/0x3e0\n[\u003c0\u003e] __handle_mm_fault+0x6ca/0xc70\n[\u003c0\u003e] handle_mm_fault+0xe9/0x350\n[\u003c0\u003e] do_user_addr_fault+0x225/0x6c0\n[\u003c0\u003e] exc_page_fault+0x84/0x1b0\n[\u003c0\u003e] asm_exc_page_fault+0x27/0x30\n\nThis requires a reboot to resolve; it is a deadlock.\n\nNote however that the call to cifs_readpage_from_fscache does mark the\npage clean, but does not free the folio lock. This happens in\n__cifs_readpage_from_fscache on success. Releasing the lock at that\npoint however is not appropriate as cifs_readahead also calls\ncifs_readpage_from_fscache and *does* unconditionally release the lock\nafter its return. This change therefore effectively makes\ncifs_readpage_worker work like cifs_readahead."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:48:06.154Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9e725386d4262ef23ae51993f04602bc535b5be2"
        },
        {
          "url": "https://git.kernel.org/stable/c/7a9fb689c1a1dc373887621a3bfa3810df0abde4"
        },
        {
          "url": "https://git.kernel.org/stable/c/69513dd669e243928f7450893190915a88f84a2b"
        }
      ],
      "title": "cifs: Release folio lock on fscache read hit.",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53593",
    "datePublished": "2025-10-04T15:44:06.853Z",
    "dateReserved": "2025-10-04T15:40:38.478Z",
    "dateUpdated": "2026-05-11T19:48:06.154Z",
    "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.