Vulnerability-Lookup

BDU:2024-03656 (CVE-2024-26629)

Vulnerability from fstec – Published: 2024-05-15 – Updated: 2024-12-04 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции check_for_locks() в модуле fs/nfsd/nfs4state.c сервера файловой системы NFS ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции check_for_locks() в модуле fs/nfsd/nfs4state.c сервера файловой системы NFS ядра операционной системы Linux связана с некорректной проверкой сериализации. Эксплуатация уязвимости может позволить нарушителю, действующему удалённо, вызвать отказ в обслуживании

Severity

5.4 (Medium) CVSS 2.0


                      
                        AV:N/AC:H/Au:N/C:N/I:N/A:C

5.9 (Medium) CVSS 3.0


                      
                        CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-414 - Отсутствие проверки блокировки

Aliases

CVE-2024-26629

References

37 references

URL
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26629
https://git.kernel.org/linus/edcf9725150e42beeca42d085149f4c88fa97afd
https://git.kernel.org/stable/c/8f5b860de87039b007e84a28a5eefc888154e098
https://git.kernel.org/stable/c/99fb654d01dc3f08b5905c663ad6c89a9d83302f
https://git.kernel.org/stable/c/b7d2eee1f53899b53f069bba3a59a419fc3d331b
https://git.kernel.org/stable/c/c6f8b3fcc62725e4129f2c0fd550d022d4a7685a
https://git.kernel.org/stable/c/e4cf8941664cae2f89f0189c29fe2ce8c6be0d03
https://git.kernel.org/stable/c/edcf9725150e42beeca42d085149f4c88fa97afd
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.323
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.220
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.154
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.285
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.79
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.15
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.3
https://lore.kernel.org/linux-cve-announce/20240313140155.1913910-4-lee@kernel.org
https://lore.kernel.org/linux-cve-announce/20240313140155.1913910-4-lee@kernel.org/
https://ubuntu.com/security/notices/USN-6765-1
https://ubuntu.com/security/notices/USN-6818-1
https://ubuntu.com/security/notices/USN-6818-2
https://ubuntu.com/security/notices/USN-6818-3
https://ubuntu.com/security/notices/USN-6818-4
https://ubuntu.com/security/notices/USN-6819-1
https://ubuntu.com/security/notices/USN-6819-2
https://ubuntu.com/security/notices/USN-6819-3
https://ubuntu.com/security/notices/USN-6819-4
https://ubuntu.com/security/notices/USN-6898-1
https://ubuntu.com/security/notices/USN-6898-2
https://ubuntu.com/security/notices/USN-6898-3
https://ubuntu.com/security/notices/USN-6898-4
https://ubuntu.com/security/notices/USN-6917-1
https://ubuntu.com/security/notices/USN-6919-1
https://ubuntu.com/security/notices/USN-6927-1
https://ubuntu.com/security/notices/USN-7019-1
https://wiki.astralinux.ru/astra-linux-se17-bulletin-2024-0830SE17
https://wiki.astralinux.ru/astra-linux-se47-bulletin-2024-1031SE47
https://www.cve.org/CVERecord?id=CVE-2024-26629

Impacted products

2 products from 2 vendors

Vendors

ООО «РусБИТех-Астра», Сообщество свободного программного обеспечения

Products

Astra Linux Special Edition (запись в едином реестре российских программ №369), Linux

Versions

1.7 (Astra Linux Special Edition), 4.7 (Astra Linux Special Edition), от 6.2 до 6.6.14 включительно (Linux), от 4.9.317 до 4.10 (Linux), от 4.14.282 до 4.15 (Linux), от 5.15.45 до 5.15.153 включительно (Linux), от 5.17.13 до 5.18 (Linux), от 5.18.2 до 6.1.78 включительно (Linux), от 5.10.120 до 5.10.219 включительно (Linux), от 6.7 до 6.7.2 включительно (Linux), от 4.19.246 до 4.19.322 включительно (Linux), от 5.4.197 до 5.4.284 включительно (Linux)

Product types

Operating system

Platforms

ООО «РусБИТех-Астра» Astra Linux Special Edition 1.7 (запись в едином реестре российских программ №369), ООО «РусБИТех-Астра» Astra Linux Special Edition 4.7 ARM (запись в едином реестре российских программ №369), Сообщество свободного программного обеспечения Linux от 6.2 до 6.6.14 включительно, Сообщество свободного программного обеспечения Linux от 6.7.0 до 6.7.2 включительно, Сообщество свободного программного обеспечения Linux от 4.9.317 до 4.10, Сообщество свободного программного обеспечения Linux от 4.14.282 до 4.15, Сообщество свободного программного обеспечения Linux от 4.19.246 до 4.20, Сообщество свободного программного обеспечения Linux от 5.4.197 до 5.5, Сообщество свободного программного обеспечения Linux от 5.15.45 до 5.15.153 включительно, Сообщество свободного программного обеспечения Linux от 5.17.13 до 5.18, Сообщество свободного программного обеспечения Linux от 5.18.2 до 6.1.78 включительно, Сообщество свободного программного обеспечения Linux от 5.10.120 до 5.10.219 включительно

Mitigations

Использование рекомендаций: Для Linux: https://git.kernel.org/stable/c/e4cf8941664cae2f89f0189c29fe2ce8c6be0d03 https://git.kernel.org/stable/c/b7d2eee1f53899b53f069bba3a59a419fc3d331b https://git.kernel.org/stable/c/8f5b860de87039b007e84a28a5eefc888154e098 https://git.kernel.org/stable/c/edcf9725150e42beeca42d085149f4c88fa97afd https://lore.kernel.org/linux-cve-announce/20240313140155.1913910-4-lee@kernel.org https://git.kernel.org/linus/edcf9725150e42beeca42d085149f4c88fa97afd https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.220 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.154 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.79 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.15 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.3 Для ОС Astra Linux: обновить пакет linux-6.1 до 6.1.90-1.astra3+ci20 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2024-0830SE17 Для Astra Linux Special Edition 4.7 для архитектуры ARM: обновить пакет linux-6.1 до 6.1.90-1.astra3+ci156 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2024-1031SE47

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:H/Au:N/C:N/I:N/A:C",
  "CVSS 3.0": "AV:N/AC:H/PR:N/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": "\u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, \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": "1.7 (Astra Linux Special Edition), 4.7 (Astra Linux Special Edition), \u043e\u0442 6.2 \u0434\u043e 6.6.14 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.9.317 \u0434\u043e 4.10 (Linux), \u043e\u0442 4.14.282 \u0434\u043e 4.15 (Linux), \u043e\u0442 5.15.45 \u0434\u043e 5.15.153 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.17.13 \u0434\u043e 5.18 (Linux), \u043e\u0442 5.18.2 \u0434\u043e 6.1.78 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.10.120 \u0434\u043e 5.10.219 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 6.7 \u0434\u043e 6.7.2 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.19.246 \u0434\u043e 4.19.322 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.4.197 \u0434\u043e 5.4.284 \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": "\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\u0414\u043b\u044f Linux:\nhttps://git.kernel.org/stable/c/e4cf8941664cae2f89f0189c29fe2ce8c6be0d03\nhttps://git.kernel.org/stable/c/b7d2eee1f53899b53f069bba3a59a419fc3d331b\nhttps://git.kernel.org/stable/c/8f5b860de87039b007e84a28a5eefc888154e098\nhttps://git.kernel.org/stable/c/edcf9725150e42beeca42d085149f4c88fa97afd\nhttps://lore.kernel.org/linux-cve-announce/20240313140155.1913910-4-lee@kernel.org\nhttps://git.kernel.org/linus/edcf9725150e42beeca42d085149f4c88fa97afd\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.220\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.154\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.79\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.15\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.3\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-6.1 \u0434\u043e 6.1.90-1.astra3+ci20 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2024-0830SE17\n\n\u0414\u043b\u044f Astra Linux Special Edition 4.7 \u0434\u043b\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b ARM:\n\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-6.1 \u0434\u043e 6.1.90-1.astra3+ci156 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2024-1031SE47",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "24.01.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "04.12.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "15.05.2024",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2024-03656",
  "\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-2024-26629",
  "\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": "Astra Linux Special Edition (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), 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": "\u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.7  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 4.7 ARM (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), \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 6.6.14 \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 6.7.0 \u0434\u043e 6.7.2 \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 4.9.317 \u0434\u043e 4.10 , \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 4.14.282 \u0434\u043e 4.15 , \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 4.19.246 \u0434\u043e 4.20 , \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 5.4.197 \u0434\u043e 5.5 , \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 5.15.45 \u0434\u043e 5.15.153 \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 5.17.13 \u0434\u043e 5.18 , \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 5.18.2 \u0434\u043e 6.1.78 \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 5.10.120 \u0434\u043e 5.10.219 \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 check_for_locks() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 fs/nfsd/nfs4state.c \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b NFS \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": "\u041e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 (CWE-414)",
  "\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 check_for_locks() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 fs/nfsd/nfs4state.c \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b NFS \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 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u043e\u0439 \u0441\u0435\u0440\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\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, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e, \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26629\nhttps://git.kernel.org/linus/edcf9725150e42beeca42d085149f4c88fa97afd\nhttps://git.kernel.org/stable/c/8f5b860de87039b007e84a28a5eefc888154e098\nhttps://git.kernel.org/stable/c/99fb654d01dc3f08b5905c663ad6c89a9d83302f\nhttps://git.kernel.org/stable/c/b7d2eee1f53899b53f069bba3a59a419fc3d331b\nhttps://git.kernel.org/stable/c/c6f8b3fcc62725e4129f2c0fd550d022d4a7685a\nhttps://git.kernel.org/stable/c/e4cf8941664cae2f89f0189c29fe2ce8c6be0d03\nhttps://git.kernel.org/stable/c/edcf9725150e42beeca42d085149f4c88fa97afd\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.323\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.220\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.154\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.285\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.79\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.15\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.3\nhttps://lore.kernel.org/linux-cve-announce/20240313140155.1913910-4-lee@kernel.org\nhttps://lore.kernel.org/linux-cve-announce/20240313140155.1913910-4-lee@kernel.org/\nhttps://ubuntu.com/security/notices/USN-6765-1\nhttps://ubuntu.com/security/notices/USN-6818-1\nhttps://ubuntu.com/security/notices/USN-6818-2\nhttps://ubuntu.com/security/notices/USN-6818-3\nhttps://ubuntu.com/security/notices/USN-6818-4\nhttps://ubuntu.com/security/notices/USN-6819-1\nhttps://ubuntu.com/security/notices/USN-6819-2\nhttps://ubuntu.com/security/notices/USN-6819-3\nhttps://ubuntu.com/security/notices/USN-6819-4\nhttps://ubuntu.com/security/notices/USN-6898-1\nhttps://ubuntu.com/security/notices/USN-6898-2\nhttps://ubuntu.com/security/notices/USN-6898-3\nhttps://ubuntu.com/security/notices/USN-6898-4\nhttps://ubuntu.com/security/notices/USN-6917-1\nhttps://ubuntu.com/security/notices/USN-6919-1\nhttps://ubuntu.com/security/notices/USN-6927-1\nhttps://ubuntu.com/security/notices/USN-7019-1\nhttps://wiki.astralinux.ru/astra-linux-se17-bulletin-2024-0830SE17\nhttps://wiki.astralinux.ru/astra-linux-se47-bulletin-2024-1031SE47\nhttps://www.cve.org/CVERecord?id=CVE-2024-26629",
  "\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-414",
  "\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 5,4)\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 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5,9)\n\u041d\u0435\u0442 \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \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 4.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 0)"
}

CVE-2024-26629 (GCVE-0-2024-26629)

Vulnerability from cvelistv5 – Published: 2024-03-13 14:01 – Updated: 2026-05-23 15:36

Title

nfsd: fix RELEASE_LOCKOWNER

Summary

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix RELEASE_LOCKOWNER The test on so_count in nfsd4_release_lockowner() is nonsense and harmful. Revert to using check_for_locks(), changing that to not sleep. First: harmful. As is documented in the kdoc comment for nfsd4_release_lockowner(), the test on so_count can transiently return a false positive resulting in a return of NFS4ERR_LOCKS_HELD when in fact no locks are held. This is clearly a protocol violation and with the Linux NFS client it can cause incorrect behaviour. If RELEASE_LOCKOWNER is sent while some other thread is still processing a LOCK request which failed because, at the time that request was received, the given owner held a conflicting lock, then the nfsd thread processing that LOCK request can hold a reference (conflock) to the lock owner that causes nfsd4_release_lockowner() to return an incorrect error. The Linux NFS client ignores that NFS4ERR_LOCKS_HELD error because it never sends NFS4_RELEASE_LOCKOWNER without first releasing any locks, so it knows that the error is impossible. It assumes the lock owner was in fact released so it feels free to use the same lock owner identifier in some later locking request. When it does reuse a lock owner identifier for which a previous RELEASE failed, it will naturally use a lock_seqid of zero. However the server, which didn't release the lock owner, will expect a larger lock_seqid and so will respond with NFS4ERR_BAD_SEQID. So clearly it is harmful to allow a false positive, which testing so_count allows. The test is nonsense because ... well... it doesn't mean anything. so_count is the sum of three different counts. 1/ the set of states listed on so_stateids 2/ the set of active vfs locks owned by any of those states 3/ various transient counts such as for conflicting locks. When it is tested against '2' it is clear that one of these is the transient reference obtained by find_lockowner_str_locked(). It is not clear what the other one is expected to be. In practice, the count is often 2 because there is precisely one state on so_stateids. If there were more, this would fail. In my testing I see two circumstances when RELEASE_LOCKOWNER is called. In one case, CLOSE is called before RELEASE_LOCKOWNER. That results in all the lock states being removed, and so the lockowner being discarded (it is removed when there are no more references which usually happens when the lock state is discarded). When nfsd4_release_lockowner() finds that the lock owner doesn't exist, it returns success. The other case shows an so_count of '2' and precisely one state listed in so_stateid. It appears that the Linux client uses a separate lock owner for each file resulting in one lock state per lock owner, so this test on '2' is safe. For another client it might not be safe. So this patch changes check_for_locks() to use the (newish) find_any_file_locked() so that it doesn't take a reference on the nfs4_file and so never calls nfsd_file_put(), and so never sleeps. With this check is it safe to restore the use of check_for_locks() rather than testing so_count against the mysterious '2'.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-21 16:10 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/10d75984495f7fe62…
https://git.kernel.org/stable/c/99fb654d01dc3f08b…
https://git.kernel.org/stable/c/c6f8b3fcc62725e41…
https://git.kernel.org/stable/c/e4cf8941664cae2f8…
https://git.kernel.org/stable/c/b7d2eee1f53899b53…
https://git.kernel.org/stable/c/8f5b860de87039b00…
https://git.kernel.org/stable/c/edcf9725150e42bee…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

3 products

Vendor	Product	Version
Linux	Linux	Affected: ef481b262bba4f454351eec43f024fec942c2d4c , < 10d75984495f7fe62152c3b0dbfa3f0a6b739c9b (git) Affected: 3097f38e91266c7132c3fdb7e778fac858c00670 , < 99fb654d01dc3f08b5905c663ad6c89a9d83302f (git) Affected: e2fc17fcc503cfca57b5d1dd3b646ca7eebead97 , < c6f8b3fcc62725e4129f2c0fd550d022d4a7685a (git) Affected: ce3c4ad7f4ce5db7b4f08a1e237d8dd94b39180b , < e4cf8941664cae2f89f0189c29fe2ce8c6be0d03 (git) Affected: ce3c4ad7f4ce5db7b4f08a1e237d8dd94b39180b , < b7d2eee1f53899b53f069bba3a59a419fc3d331b (git) Affected: ce3c4ad7f4ce5db7b4f08a1e237d8dd94b39180b , < 8f5b860de87039b007e84a28a5eefc888154e098 (git) Affected: ce3c4ad7f4ce5db7b4f08a1e237d8dd94b39180b , < edcf9725150e42beeca42d085149f4c88fa97afd (git) Affected: fea1d0940301378206955264a01778700fc9c16f (git) Affected: 2ec65dc6635d1976bd1dbf2640ff7f810b2f6dd1 (git) Affected: a2235bc65ade40982c3d09025cdd34bc539d6a69 (git) Affected: ba747abfca27e23c42ded3912c87b70d7e16b6ab (git) Affected: e8020d96dd5b2dcc1f6a8ee4f87a53a373002cd5 (git) Affected: 4.19.246 , < 4.19.306 (semver) Affected: 5.10.120 , < 5.10.220 (semver) Affected: 5.15.45 , < 5.15.154 (semver) Affected: 4.9.317 , < 4.10 (semver) Affected: 4.14.282 , < 4.15 (semver) Affected: 5.4.197 , < 5.5 (semver) Affected: 5.17.13 , < 5.18 (semver) Affected: 5.18.2 , < 5.19 (semver)
Linux	Linux	Affected: 5.19 Unaffected: 0 , < 5.19 (semver) Unaffected: 4.19.306 , ≤ 4.19.* (semver) Unaffected: 5.10.220 , ≤ 5.10.* (semver) Unaffected: 5.15.154 , ≤ 5.15.* (semver) Unaffected: 6.1.79 , ≤ 6.1.* (semver) Unaffected: 6.6.15 , ≤ 6.6.* (semver) Unaffected: 6.7.3 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix RELEASE_LOCKOWNER\n\nThe test on so_count in nfsd4_release_lockowner() is nonsense and\nharmful.  Revert to using check_for_locks(), changing that to not sleep.\n\nFirst: harmful.\nAs is documented in the kdoc comment for nfsd4_release_lockowner(), the\ntest on so_count can transiently return a false positive resulting in a\nreturn of NFS4ERR_LOCKS_HELD when in fact no locks are held.  This is\nclearly a protocol violation and with the Linux NFS client it can cause\nincorrect behaviour.\n\nIf RELEASE_LOCKOWNER is sent while some other thread is still\nprocessing a LOCK request which failed because, at the time that request\nwas received, the given owner held a conflicting lock, then the nfsd\nthread processing that LOCK request can hold a reference (conflock) to\nthe lock owner that causes nfsd4_release_lockowner() to return an\nincorrect error.\n\nThe Linux NFS client ignores that NFS4ERR_LOCKS_HELD error because it\nnever sends NFS4_RELEASE_LOCKOWNER without first releasing any locks, so\nit knows that the error is impossible.  It assumes the lock owner was in\nfact released so it feels free to use the same lock owner identifier in\nsome later locking request.\n\nWhen it does reuse a lock owner identifier for which a previous RELEASE\nfailed, it will naturally use a lock_seqid of zero.  However the server,\nwhich didn\u0027t release the lock owner, will expect a larger lock_seqid and\nso will respond with NFS4ERR_BAD_SEQID.\n\nSo clearly it is harmful to allow a false positive, which testing\nso_count allows.\n\nThe test is nonsense because ... well... it doesn\u0027t mean anything.\n\nso_count is the sum of three different counts.\n1/ the set of states listed on so_stateids\n2/ the set of active vfs locks owned by any of those states\n3/ various transient counts such as for conflicting locks.\n\nWhen it is tested against \u00272\u0027 it is clear that one of these is the\ntransient reference obtained by find_lockowner_str_locked().  It is not\nclear what the other one is expected to be.\n\nIn practice, the count is often 2 because there is precisely one state\non so_stateids.  If there were more, this would fail.\n\nIn my testing I see two circumstances when RELEASE_LOCKOWNER is called.\nIn one case, CLOSE is called before RELEASE_LOCKOWNER.  That results in\nall the lock states being removed, and so the lockowner being discarded\n(it is removed when there are no more references which usually happens\nwhen the lock state is discarded).  When nfsd4_release_lockowner() finds\nthat the lock owner doesn\u0027t exist, it returns success.\n\nThe other case shows an so_count of \u00272\u0027 and precisely one state listed\nin so_stateid.  It appears that the Linux client uses a separate lock\nowner for each file resulting in one lock state per lock owner, so this\ntest on \u00272\u0027 is safe.  For another client it might not be safe.\n\nSo this patch changes check_for_locks() to use the (newish)\nfind_any_file_locked() so that it doesn\u0027t take a reference on the\nnfs4_file and so never calls nfsd_file_put(), and so never sleeps.  With\nthis check is it safe to restore the use of check_for_locks() rather\nthan testing so_count against the mysterious \u00272\u0027."
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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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.