Vulnerability-Lookup

BDU:2025-14233 (CVE-2021-47480)

Vulnerability from fstec – Published: 2025-11-16 – Updated: 2025-11-16 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции scsi_device_put() модуля drivers/scsi/scsi.c драйвера поддержки устройств SCSI ядра операционной системы Linux, позволяющая нарушителю получить доступ к защищаемой информации или вызвать отказ в обслуживании

Summary

Уязвимость функции scsi_device_put() модуля drivers/scsi/scsi.c драйвера поддержки устройств SCSI ядра операционной системы Linux связана с повторным использованием памяти после ее освобождения. Эксплуатация уязвимости может позволить нарушителю получить доступ к защищаемой информации или вызвать отказ в обслуживании

Severity

5.9 (Medium) CVSS 2.0


                      
                        AV:L/AC:L/Au:M/C:C/I:N/A:C

6.0 (Medium) CVSS 3.1


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-416 - Использование после освобождения

Aliases

CVE-2021-47480

References

18 references

URL
https://www.cve.org/CVERecord?id=CVE-2021-47480
https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813
https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428
https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee
https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0
https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b
https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f
https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836
https://lore.kernel.org/linux-cve-announce/2024052237-CVE-2021-47480-eaa0@gregkh/
https://git.kernel.org/linus/f2b85040acec9a928b4eb1b57a989324e8e38d3f
https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commi…
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.292
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.290
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.255
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.216
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.158
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.78
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.17

Impacted products

1 product from 1 vendor

Vendors

Сообщество свободного программного обеспечения

Products

Linux

Versions

от 4.5 до 4.9.289 включительно (Linux), от 4.10 до 4.14.254 включительно (Linux), от 5.5 до 5.10.77 включительно (Linux), от 2.6.12 до 4.4.291 включительно (Linux), от 4.15 до 4.19.215 включительно (Linux), от 4.20 до 5.4.157 включительно (Linux), от 5.11 до 5.14.16 включительно (Linux)

Product types

Operating system

Platforms

Сообщество свободного программного обеспечения Linux от 4.5 до 4.9.289 включительно, Сообщество свободного программного обеспечения Linux от 4.10 до 4.14.254 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.77 включительно, Сообщество свободного программного обеспечения Linux от 2.6.12 до 4.4.291 включительно, Сообщество свободного программного обеспечения Linux от 4.15 до 4.19.215 включительно, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.157 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.14.16 включительно

Mitigations

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:M/C:C/I:N/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:H/UI:N/S:U/C:H/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 4.5 \u0434\u043e 4.9.289 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.10 \u0434\u043e 4.14.254 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.77 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 2.6.12 \u0434\u043e 4.4.291 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.215 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.157 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.14.16 \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/1105573d964f7b78734348466b01f5f6ba8a1813\nhttps://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428\nhttps://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee\nhttps://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0\nhttps://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b\nhttps://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f\nhttps://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836\nhttps://git.kernel.org/linus/f2b85040acec9a928b4eb1b57a989324e8e38d3f",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "08.10.2021",
  "\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:2025-14233",
  "\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-2021-47480",
  "\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 4.5 \u0434\u043e 4.9.289 \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 4.10 \u0434\u043e 4.14.254 \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 5.10.77 \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 4.4.291 \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 4.19.215 \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 5.4.157 \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 5.14.16 \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 scsi_device_put() \u043c\u043e\u0434\u0443\u043b\u044f drivers/scsi/scsi.c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 SCSI \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 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0438\u043b\u0438 \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": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f (CWE-416)",
  "\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 scsi_device_put() \u043c\u043e\u0434\u0443\u043b\u044f drivers/scsi/scsi.c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 SCSI \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 \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u044b\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u043e\u0441\u043b\u0435 \u0435\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\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 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0438\u043b\u0438 \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://www.cve.org/CVERecord?id=CVE-2021-47480\nhttps://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813\nhttps://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428\nhttps://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee\nhttps://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0\nhttps://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b\nhttps://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f\nhttps://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836\nhttps://lore.kernel.org/linux-cve-announce/2024052237-CVE-2021-47480-eaa0@gregkh/\nhttps://git.kernel.org/linus/f2b85040acec9a928b4eb1b57a989324e8e38d3f\nhttps://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1\u0026id=7b57c38d12aed1b5d92f74748bed25e0d041729f\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.292\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.290\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.255\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.216\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.158\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.78\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.17",
  "\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-416",
  "\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 5,9)\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 6)"
}

CVE-2021-47480 (GCVE-0-2021-47480)

Vulnerability from cvelistv5 – Published: 2024-05-22 08:19 – Updated: 2026-05-11 13:55

Title

scsi: core: Put LLD module refcnt after SCSI device is released

Summary

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Put LLD module refcnt after SCSI device is released SCSI host release is triggered when SCSI device is freed. We have to make sure that the low-level device driver module won't be unloaded before SCSI host instance is released because shost->hostt is required in the release handler. Make sure to put LLD module refcnt after SCSI device is released. Fixes a kernel panic of 'BUG: unable to handle page fault for address' reported by Changhui and Yi.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:36 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/1105573d964f7b787…
https://git.kernel.org/stable/c/8e4814a461787e15a…
https://git.kernel.org/stable/c/61a0faa89f21861d1…
https://git.kernel.org/stable/c/c2df161f69fb1c67f…
https://git.kernel.org/stable/c/1ce287eff9f23181d…
https://git.kernel.org/stable/c/7b57c38d12aed1b5d…
https://git.kernel.org/stable/c/f30822c0b4c35ec86…
https://git.kernel.org/stable/c/f2b85040acec9a928…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 1105573d964f7b78734348466b01f5f6ba8a1813 (git) Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 8e4814a461787e15a31d322d9efbe0d4f6822428 (git) Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 61a0faa89f21861d1f8d059123b5c285a5d9ffee (git) Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < c2df161f69fb1c67f63adbd193368b47f511edc0 (git) Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 1ce287eff9f23181d5644db787f472463a61f68b (git) Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 7b57c38d12aed1b5d92f74748bed25e0d041729f (git) Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < f30822c0b4c35ec86187ab055263943dc71a6836 (git) Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < f2b85040acec9a928b4eb1b57a989324e8e38d3f (git)
Linux	Linux	Affected: 2.6.16 Unaffected: 0 , < 2.6.16 (semver) Unaffected: 4.4.292 , ≤ 4.4.* (semver) Unaffected: 4.9.290 , ≤ 4.9.* (semver) Unaffected: 4.14.255 , ≤ 4.14.* (semver) Unaffected: 4.19.216 , ≤ 4.19.* (semver) Unaffected: 5.4.158 , ≤ 5.4.* (semver) Unaffected: 5.10.78 , ≤ 5.10.* (semver) Unaffected: 5.14.17 , ≤ 5.14.* (semver) Unaffected: 5.15 , ≤ * (original_commit_for_fix)

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{
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Put LLD module refcnt after SCSI device is released\n\nSCSI host release is triggered when SCSI device is freed. We have to make\nsure that the low-level device driver module won\u0027t be unloaded before SCSI\nhost instance is released because shost-\u003ehostt is required in the release\nhandler.\n\nMake sure to put LLD module refcnt after SCSI device is released.\n\nFixes a kernel panic of \u0027BUG: unable to handle page fault for address\u0027\nreported by Changhui and Yi."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T13:55:30.128Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428"
        },
        {
          "url": "https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0"
        },
        {
          "url": "https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b"
        },
        {
          "url": "https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f"
        },
        {
          "url": "https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836"
        },
        {
          "url": "https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f"
        }
      ],
      "title": "scsi: core: Put LLD module refcnt after SCSI device is released",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47480",
    "datePublished": "2024-05-22T08:19:32.839Z",
    "dateReserved": "2024-05-22T06:20:56.200Z",
    "dateUpdated": "2026-05-11T13:55:30.128Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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.
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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.

Action not permitted

BDU:2025-14233 (CVE-2021-47480)

CVE-2021-47480 (GCVE-0-2021-47480)

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Sightings

Nomenclature

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