Vulnerability-Lookup

BDU:2025-14253

Vulnerability from fstec - Published: 20.01.2022

Title

Уязвимость функции btrfs_quota_disable() модуля fs/btrfs/qgroup.c поддержки файловой системы btrfs ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Description

Уязвимость функции btrfs_quota_disable() модуля fs/btrfs/qgroup.c поддержки файловой системы btrfs ядра операционной системы Linux связана с некорректной блокировкой ресурсов. 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

Сообщество свободного программного обеспечения

Software Name

Linux

Software Version

от 5.11 до 5.15.21 включительно (Linux), от 5.16 до 5.16.7 включительно (Linux), от 5.5 до 5.10.98 включительно (Linux), от 2.6.12 до 5.4.177 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/32747e01436aac8ef93fe85b5b523b4f3b52f040 https://git.kernel.org/stable/c/26b3901d20bf9da2c6a00cb1fb48932166f80a45 https://git.kernel.org/stable/c/89d4cca583fc9594ee7d1a0bc986886d6fb587e6 https://git.kernel.org/stable/c/31198e58c09e21d4f65c49d2361f76b87aca4c3f https://git.kernel.org/linus/e804861bd4e69cc5fe1053eedcb024982dde8e48

Reference

https://git.kernel.org/stable/c/32747e01436aac8ef93fe85b5b523b4f3b52f040 https://git.kernel.org/stable/c/26b3901d20bf9da2c6a00cb1fb48932166f80a45 https://git.kernel.org/stable/c/89d4cca583fc9594ee7d1a0bc986886d6fb587e6 https://git.kernel.org/stable/c/31198e58c09e21d4f65c49d2361f76b87aca4c3f https://www.cve.org/CVERecord?id=CVE-2022-48734 https://git.kernel.org/linus/e804861bd4e69cc5fe1053eedcb024982dde8e48 https://lore.kernel.org/linux-cve-announce/2024062000-CVE-2022-48734-88b7@gregkh/ https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1&id=32747e01436aac8ef93fe85b5b523b4f3b52f040 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.178 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.99 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.22 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.8

CWE

CWE-667

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": "\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": "\u043e\u0442 5.11 \u0434\u043e 5.15.21 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.16 \u0434\u043e 5.16.7 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.98 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 2.6.12 \u0434\u043e 5.4.177 \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://git.kernel.org/stable/c/32747e01436aac8ef93fe85b5b523b4f3b52f040\nhttps://git.kernel.org/stable/c/26b3901d20bf9da2c6a00cb1fb48932166f80a45\nhttps://git.kernel.org/stable/c/89d4cca583fc9594ee7d1a0bc986886d6fb587e6\nhttps://git.kernel.org/stable/c/31198e58c09e21d4f65c49d2361f76b87aca4c3f\nhttps://git.kernel.org/linus/e804861bd4e69cc5fe1053eedcb024982dde8e48",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "20.01.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "16.11.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "16.11.2025",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2025-14253",
  "\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-2022-48734",
  "\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": "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": "\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 5.15.21 \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 5.16.7 \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 5.10.98 \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 2.6.12 \u0434\u043e 5.4.177 \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 btrfs_quota_disable() \u043c\u043e\u0434\u0443\u043b\u044f fs/btrfs/qgroup.c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b btrfs \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u0430\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0430 (CWE-667)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 btrfs_quota_disable() \u043c\u043e\u0434\u0443\u043b\u044f fs/btrfs/qgroup.c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b btrfs \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\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u043e\u0439 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://git.kernel.org/stable/c/32747e01436aac8ef93fe85b5b523b4f3b52f040\nhttps://git.kernel.org/stable/c/26b3901d20bf9da2c6a00cb1fb48932166f80a45\nhttps://git.kernel.org/stable/c/89d4cca583fc9594ee7d1a0bc986886d6fb587e6\nhttps://git.kernel.org/stable/c/31198e58c09e21d4f65c49d2361f76b87aca4c3f\nhttps://www.cve.org/CVERecord?id=CVE-2022-48734\nhttps://git.kernel.org/linus/e804861bd4e69cc5fe1053eedcb024982dde8e48\nhttps://lore.kernel.org/linux-cve-announce/2024062000-CVE-2022-48734-88b7@gregkh/\nhttps://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1\u0026id=32747e01436aac8ef93fe85b5b523b4f3b52f040\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.178\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.99\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.22\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.8",
  "\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-667",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\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-2022-48734 (GCVE-0-2022-48734)

Vulnerability from cvelistv5 – Published: 2024-06-20 11:13 – Updated: 2025-12-23 13:20

Title

btrfs: fix deadlock between quota disable and qgroup rescan worker

Summary

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between quota disable and qgroup rescan worker Quota disable ioctl starts a transaction before waiting for the qgroup rescan worker completes. However, this wait can be infinite and results in deadlock because of circular dependency among the quota disable ioctl, the qgroup rescan worker and the other task with transaction such as block group relocation task. The deadlock happens with the steps following: 1) Task A calls ioctl to disable quota. It starts a transaction and waits for qgroup rescan worker completes. 2) Task B such as block group relocation task starts a transaction and joins to the transaction that task A started. Then task B commits to the transaction. In this commit, task B waits for a commit by task A. 3) Task C as the qgroup rescan worker starts its job and starts a transaction. In this transaction start, task C waits for completion of the transaction that task A started and task B committed. This deadlock was found with fstests test case btrfs/115 and a zoned null_blk device. The test case enables and disables quota, and the block group reclaim was triggered during the quota disable by chance. The deadlock was also observed by running quota enable and disable in parallel with 'btrfs balance' command on regular null_blk devices. An example report of the deadlock: [372.469894] INFO: task kworker/u16:6:103 blocked for more than 122 seconds. [372.479944] Not tainted 5.16.0-rc8 #7 [372.485067] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [372.493898] task:kworker/u16:6 state:D stack: 0 pid: 103 ppid: 2 flags:0x00004000 [372.503285] Workqueue: btrfs-qgroup-rescan btrfs_work_helper [btrfs] [372.510782] Call Trace: [372.514092] <TASK> [372.521684] __schedule+0xb56/0x4850 [372.530104] ? io_schedule_timeout+0x190/0x190 [372.538842] ? lockdep_hardirqs_on+0x7e/0x100 [372.547092] ? _raw_spin_unlock_irqrestore+0x3e/0x60 [372.555591] schedule+0xe0/0x270 [372.561894] btrfs_commit_transaction+0x18bb/0x2610 [btrfs] [372.570506] ? btrfs_apply_pending_changes+0x50/0x50 [btrfs] [372.578875] ? free_unref_page+0x3f2/0x650 [372.585484] ? finish_wait+0x270/0x270 [372.591594] ? release_extent_buffer+0x224/0x420 [btrfs] [372.599264] btrfs_qgroup_rescan_worker+0xc13/0x10c0 [btrfs] [372.607157] ? lock_release+0x3a9/0x6d0 [372.613054] ? btrfs_qgroup_account_extent+0xda0/0xda0 [btrfs] [372.620960] ? do_raw_spin_lock+0x11e/0x250 [372.627137] ? rwlock_bug.part.0+0x90/0x90 [372.633215] ? lock_is_held_type+0xe4/0x140 [372.639404] btrfs_work_helper+0x1ae/0xa90 [btrfs] [372.646268] process_one_work+0x7e9/0x1320 [372.652321] ? lock_release+0x6d0/0x6d0 [372.658081] ? pwq_dec_nr_in_flight+0x230/0x230 [372.664513] ? rwlock_bug.part.0+0x90/0x90 [372.670529] worker_thread+0x59e/0xf90 [372.676172] ? process_one_work+0x1320/0x1320 [372.682440] kthread+0x3b9/0x490 [372.687550] ? _raw_spin_unlock_irq+0x24/0x50 [372.693811] ? set_kthread_struct+0x100/0x100 [372.700052] ret_from_fork+0x22/0x30 [372.705517] </TASK> [372.709747] INFO: task btrfs-transacti:2347 blocked for more than 123 seconds. [372.729827] Not tainted 5.16.0-rc8 #7 [372.745907] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [372.767106] task:btrfs-transacti state:D stack: 0 pid: 2347 ppid: 2 flags:0x00004000 [372.787776] Call Trace: [372.801652] <TASK> [372.812961] __schedule+0xb56/0x4850 [372.830011] ? io_schedule_timeout+0x190/0x190 [372.852547] ? lockdep_hardirqs_on+0x7e/0x100 [372.871761] ? _raw_spin_unlock_irqrestore+0x3e/0x60 [372.886792] schedule+0xe0/0x270 [372.901685] wait_current_trans+0x22c/0x310 [btrfs] [372.919743] ? btrfs_put_transaction+0x3d0/0x3d0 [btrfs] [372.938923] ? finish_wait+0x270/0x270 [372.959085] ? join_transaction+0xc7 ---truncated---

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/26b3901d20bf9da2c…
	https://git.kernel.org/stable/c/32747e01436aac8ef…
	https://git.kernel.org/stable/c/89d4cca583fc9594e…
	https://git.kernel.org/stable/c/31198e58c09e21d4f…
	https://git.kernel.org/stable/c/e804861bd4e69cc5f…

Impacted products

Vendor

Product

Version

Linux

Affected: 967ef5131e42d6e3bb216c44161d893048a49957 , < 26b3901d20bf9da2c6a00cb1fb48932166f80a45 (git)
Affected: 967ef5131e42d6e3bb216c44161d893048a49957 , < 32747e01436aac8ef93fe85b5b523b4f3b52f040 (git)
Affected: 967ef5131e42d6e3bb216c44161d893048a49957 , < 89d4cca583fc9594ee7d1a0bc986886d6fb587e6 (git)
Affected: 967ef5131e42d6e3bb216c44161d893048a49957 , < 31198e58c09e21d4f65c49d2361f76b87aca4c3f (git)
Affected: 967ef5131e42d6e3bb216c44161d893048a49957 , < e804861bd4e69cc5fe1053eedcb024982dde8e48 (git)

Linux

Affected: 4.4
Unaffected: 0 , < 4.4 (semver)
Unaffected: 5.4.178 , ≤ 5.4.* (semver)
Unaffected: 5.10.99 , ≤ 5.10.* (semver)
Unaffected: 5.15.22 , ≤ 5.15.* (semver)
Unaffected: 5.16.8 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

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To clipboard

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix deadlock between quota disable and qgroup rescan worker\n\nQuota disable ioctl starts a transaction before waiting for the qgroup\nrescan worker completes. However, this wait can be infinite and results\nin deadlock because of circular dependency among the quota disable\nioctl, the qgroup rescan worker and the other task with transaction such\nas block group relocation task.\n\nThe deadlock happens with the steps following:\n\n1) Task A calls ioctl to disable quota. It starts a transaction and\n   waits for qgroup rescan worker completes.\n2) Task B such as block group relocation task starts a transaction and\n   joins to the transaction that task A started. Then task B commits to\n   the transaction. In this commit, task B waits for a commit by task A.\n3) Task C as the qgroup rescan worker starts its job and starts a\n   transaction. In this transaction start, task C waits for completion\n   of the transaction that task A started and task B committed.\n\nThis deadlock was found with fstests test case btrfs/115 and a zoned\nnull_blk device. The test case enables and disables quota, and the\nblock group reclaim was triggered during the quota disable by chance.\nThe deadlock was also observed by running quota enable and disable in\nparallel with \u0027btrfs balance\u0027 command on regular null_blk devices.\n\nAn example report of the deadlock:\n\n  [372.469894] INFO: task kworker/u16:6:103 blocked for more than 122 seconds.\n  [372.479944]       Not tainted 5.16.0-rc8 #7\n  [372.485067] \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n  [372.493898] task:kworker/u16:6   state:D stack:    0 pid:  103 ppid:     2 flags:0x00004000\n  [372.503285] Workqueue: btrfs-qgroup-rescan btrfs_work_helper [btrfs]\n  [372.510782] Call Trace:\n  [372.514092]  \u003cTASK\u003e\n  [372.521684]  __schedule+0xb56/0x4850\n  [372.530104]  ? io_schedule_timeout+0x190/0x190\n  [372.538842]  ? lockdep_hardirqs_on+0x7e/0x100\n  [372.547092]  ? _raw_spin_unlock_irqrestore+0x3e/0x60\n  [372.555591]  schedule+0xe0/0x270\n  [372.561894]  btrfs_commit_transaction+0x18bb/0x2610 [btrfs]\n  [372.570506]  ? btrfs_apply_pending_changes+0x50/0x50 [btrfs]\n  [372.578875]  ? free_unref_page+0x3f2/0x650\n  [372.585484]  ? finish_wait+0x270/0x270\n  [372.591594]  ? release_extent_buffer+0x224/0x420 [btrfs]\n  [372.599264]  btrfs_qgroup_rescan_worker+0xc13/0x10c0 [btrfs]\n  [372.607157]  ? lock_release+0x3a9/0x6d0\n  [372.613054]  ? btrfs_qgroup_account_extent+0xda0/0xda0 [btrfs]\n  [372.620960]  ? do_raw_spin_lock+0x11e/0x250\n  [372.627137]  ? rwlock_bug.part.0+0x90/0x90\n  [372.633215]  ? lock_is_held_type+0xe4/0x140\n  [372.639404]  btrfs_work_helper+0x1ae/0xa90 [btrfs]\n  [372.646268]  process_one_work+0x7e9/0x1320\n  [372.652321]  ? lock_release+0x6d0/0x6d0\n  [372.658081]  ? pwq_dec_nr_in_flight+0x230/0x230\n  [372.664513]  ? rwlock_bug.part.0+0x90/0x90\n  [372.670529]  worker_thread+0x59e/0xf90\n  [372.676172]  ? process_one_work+0x1320/0x1320\n  [372.682440]  kthread+0x3b9/0x490\n  [372.687550]  ? _raw_spin_unlock_irq+0x24/0x50\n  [372.693811]  ? set_kthread_struct+0x100/0x100\n  [372.700052]  ret_from_fork+0x22/0x30\n  [372.705517]  \u003c/TASK\u003e\n  [372.709747] INFO: task btrfs-transacti:2347 blocked for more than 123 seconds.\n  [372.729827]       Not tainted 5.16.0-rc8 #7\n  [372.745907] \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n  [372.767106] task:btrfs-transacti state:D stack:    0 pid: 2347 ppid:     2 flags:0x00004000\n  [372.787776] Call Trace:\n  [372.801652]  \u003cTASK\u003e\n  [372.812961]  __schedule+0xb56/0x4850\n  [372.830011]  ? io_schedule_timeout+0x190/0x190\n  [372.852547]  ? lockdep_hardirqs_on+0x7e/0x100\n  [372.871761]  ? _raw_spin_unlock_irqrestore+0x3e/0x60\n  [372.886792]  schedule+0xe0/0x270\n  [372.901685]  wait_current_trans+0x22c/0x310 [btrfs]\n  [372.919743]  ? btrfs_put_transaction+0x3d0/0x3d0 [btrfs]\n  [372.938923]  ? finish_wait+0x270/0x270\n  [372.959085]  ? join_transaction+0xc7\n---truncated---"
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          "url": "https://git.kernel.org/stable/c/31198e58c09e21d4f65c49d2361f76b87aca4c3f"
        },
        {
          "url": "https://git.kernel.org/stable/c/e804861bd4e69cc5fe1053eedcb024982dde8e48"
        }
      ],
      "title": "btrfs: fix deadlock between quota disable and qgroup rescan worker",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48734",
    "datePublished": "2024-06-20T11:13:21.392Z",
    "dateReserved": "2024-06-20T11:09:39.053Z",
    "dateUpdated": "2025-12-23T13:20:14.304Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

BDU:2025-14253

CVE-2022-48734 (GCVE-0-2022-48734)

Tags

Sightings

Nomenclature