Vulnerability-Lookup

BDU:2025-07382

Vulnerability from fstec - Published: 09.06.2021

Title

Уязвимость функции dwc3_wIndex_to_dep() модуля drivers/usb/dwc3/ep0.c - драйвера поддержки устройств шины USB ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Description

Уязвимость функции dwc3_wIndex_to_dep() модуля drivers/usb/dwc3/ep0.c - драйвера поддержки устройств шины USB ядра операционной системы Linux связана с разыменованием указателя NULL. 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 5.5 до 5.10.43 включительно (Linux), от 5.11 до 5.12.10 включительно (Linux), от 4.15 до 4.19.194 включительно (Linux), от 4.20 до 5.4.125 включительно (Linux), от 4.10 до 4.14.236 включительно (Linux), от 4.5 до 4.9.272 включительно (Linux), от 2.6.12 до 4.4.272 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/788755756dd4a6aba1de479fec20b0fa600e7f19 https://git.kernel.org/stable/c/96b74a99d360235c24052f1d060e64ac53f43528 https://git.kernel.org/stable/c/d00889080ab60051627dab1d85831cd9db750e2a https://git.kernel.org/stable/c/60156089f07e724e4dc8483702d5e1ede4522749 https://git.kernel.org/stable/c/bd551e7c85939de2182010273450bfa78c3742fc https://git.kernel.org/stable/c/366369b89bedd59b1425386e8d4a18a466e420e4 https://git.kernel.org/stable/c/470403639114895e2697c766fbe17be8d0e9b67a https://git.kernel.org/stable/c/990dc90750772622d44ca2ea6652c521e6f67e16 https://lore.kernel.org/linux-cve-announce/2024052150-CVE-2021-47269-c83f@gregkh/ https://git.kernel.org/linus/d00889080ab60051627dab1d85831cd9db750e2a https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1&id=470403639114895e2697c766fbe17be8d0e9b67a https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.273 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.273 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.237 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.195 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.126 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11

Reference

https://git.kernel.org/stable/c/788755756dd4a6aba1de479fec20b0fa600e7f19 https://git.kernel.org/stable/c/96b74a99d360235c24052f1d060e64ac53f43528 https://git.kernel.org/stable/c/d00889080ab60051627dab1d85831cd9db750e2a https://git.kernel.org/stable/c/60156089f07e724e4dc8483702d5e1ede4522749 https://git.kernel.org/stable/c/bd551e7c85939de2182010273450bfa78c3742fc https://git.kernel.org/stable/c/366369b89bedd59b1425386e8d4a18a466e420e4 https://git.kernel.org/stable/c/470403639114895e2697c766fbe17be8d0e9b67a https://git.kernel.org/stable/c/990dc90750772622d44ca2ea6652c521e6f67e16 https://www.cve.org/CVERecord?id=CVE-2021-47269 https://lore.kernel.org/linux-cve-announce/2024052150-CVE-2021-47269-c83f@gregkh/ https://git.kernel.org/linus/d00889080ab60051627dab1d85831cd9db750e2a https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1&id=470403639114895e2697c766fbe17be8d0e9b67a https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.273 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.273 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.237 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.195 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.126 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11

CWE

CWE-476

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 5.5 \u0434\u043e 5.10.43 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.12.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.194 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.125 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.10 \u0434\u043e 4.14.236 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.5 \u0434\u043e 4.9.272 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 2.6.12 \u0434\u043e 4.4.272 \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\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/788755756dd4a6aba1de479fec20b0fa600e7f19\nhttps://git.kernel.org/stable/c/96b74a99d360235c24052f1d060e64ac53f43528\nhttps://git.kernel.org/stable/c/d00889080ab60051627dab1d85831cd9db750e2a\nhttps://git.kernel.org/stable/c/60156089f07e724e4dc8483702d5e1ede4522749\nhttps://git.kernel.org/stable/c/bd551e7c85939de2182010273450bfa78c3742fc\nhttps://git.kernel.org/stable/c/366369b89bedd59b1425386e8d4a18a466e420e4\nhttps://git.kernel.org/stable/c/470403639114895e2697c766fbe17be8d0e9b67a\nhttps://git.kernel.org/stable/c/990dc90750772622d44ca2ea6652c521e6f67e16\nhttps://lore.kernel.org/linux-cve-announce/2024052150-CVE-2021-47269-c83f@gregkh/\nhttps://git.kernel.org/linus/d00889080ab60051627dab1d85831cd9db750e2a\nhttps://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1\u0026id=470403639114895e2697c766fbe17be8d0e9b67a\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.273\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.273\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.237\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.195\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.126\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "09.06.2021",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "23.06.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "23.06.2025",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2025-07382",
  "\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-2021-47269",
  "\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 5.5 \u0434\u043e 5.10.43 \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 5.12.10 \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 4.19.194 \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 5.4.125 \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 4.14.236 \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 4.5 \u0434\u043e 4.9.272 \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 4.4.272 \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 dwc3_wIndex_to_dep() \u043c\u043e\u0434\u0443\u043b\u044f drivers/usb/dwc3/ep0.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 \u0448\u0438\u043d\u044b USB \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": "\u0420\u0430\u0437\u044b\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f NULL (CWE-476)",
  "\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 dwc3_wIndex_to_dep() \u043c\u043e\u0434\u0443\u043b\u044f drivers/usb/dwc3/ep0.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 \u0448\u0438\u043d\u044b USB \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0440\u0430\u0437\u044b\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f NULL. \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 \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://git.kernel.org/stable/c/788755756dd4a6aba1de479fec20b0fa600e7f19\nhttps://git.kernel.org/stable/c/96b74a99d360235c24052f1d060e64ac53f43528\nhttps://git.kernel.org/stable/c/d00889080ab60051627dab1d85831cd9db750e2a\nhttps://git.kernel.org/stable/c/60156089f07e724e4dc8483702d5e1ede4522749\nhttps://git.kernel.org/stable/c/bd551e7c85939de2182010273450bfa78c3742fc\nhttps://git.kernel.org/stable/c/366369b89bedd59b1425386e8d4a18a466e420e4\nhttps://git.kernel.org/stable/c/470403639114895e2697c766fbe17be8d0e9b67a\nhttps://git.kernel.org/stable/c/990dc90750772622d44ca2ea6652c521e6f67e16\nhttps://www.cve.org/CVERecord?id=CVE-2021-47269\nhttps://lore.kernel.org/linux-cve-announce/2024052150-CVE-2021-47269-c83f@gregkh/\nhttps://git.kernel.org/linus/d00889080ab60051627dab1d85831cd9db750e2a\nhttps://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1\u0026id=470403639114895e2697c766fbe17be8d0e9b67a\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.273\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.273\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.237\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.195\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.126\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11",
  "\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-476",
  "\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-2021-47269 (GCVE-0-2021-47269)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:19 – Updated: 2025-12-18 11:36

Title

usb: dwc3: ep0: fix NULL pointer exception

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: ep0: fix NULL pointer exception There is no validation of the index from dwc3_wIndex_to_dep() and we might be referring a non-existing ep and trigger a NULL pointer exception. In certain configurations we might use fewer eps and the index might wrongly indicate a larger ep index than existing. By adding this validation from the patch we can actually report a wrong index back to the caller. In our usecase we are using a composite device on an older kernel, but upstream might use this fix also. Unfortunately, I cannot describe the hardware for others to reproduce the issue as it is a proprietary implementation. [ 82.958261] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a4 [ 82.966891] Mem abort info: [ 82.969663] ESR = 0x96000006 [ 82.972703] Exception class = DABT (current EL), IL = 32 bits [ 82.978603] SET = 0, FnV = 0 [ 82.981642] EA = 0, S1PTW = 0 [ 82.984765] Data abort info: [ 82.987631] ISV = 0, ISS = 0x00000006 [ 82.991449] CM = 0, WnR = 0 [ 82.994409] user pgtable: 4k pages, 39-bit VAs, pgdp = 00000000c6210ccc [ 83.000999] [00000000000000a4] pgd=0000000053aa5003, pud=0000000053aa5003, pmd=0000000000000000 [ 83.009685] Internal error: Oops: 96000006 [#1] PREEMPT SMP [ 83.026433] Process irq/62-dwc3 (pid: 303, stack limit = 0x000000003985154c) [ 83.033470] CPU: 0 PID: 303 Comm: irq/62-dwc3 Not tainted 4.19.124 #1 [ 83.044836] pstate: 60000085 (nZCv daIf -PAN -UAO) [ 83.049628] pc : dwc3_ep0_handle_feature+0x414/0x43c [ 83.054558] lr : dwc3_ep0_interrupt+0x3b4/0xc94 ... [ 83.141788] Call trace: [ 83.144227] dwc3_ep0_handle_feature+0x414/0x43c [ 83.148823] dwc3_ep0_interrupt+0x3b4/0xc94 [ 83.181546] ---[ end trace aac6b5267d84c32f ]---

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/96b74a99d360235c2…
	https://git.kernel.org/stable/c/60156089f07e724e4…
	https://git.kernel.org/stable/c/990dc90750772622d…
	https://git.kernel.org/stable/c/bd551e7c85939de21…
	https://git.kernel.org/stable/c/366369b89bedd59b1…
	https://git.kernel.org/stable/c/470403639114895e2…
	https://git.kernel.org/stable/c/788755756dd4a6aba…
	https://git.kernel.org/stable/c/d00889080ab600516…

Impacted products

Vendor

Product

Version

Linux

Affected: 6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e , < 96b74a99d360235c24052f1d060e64ac53f43528 (git)
Affected: 6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e , < 60156089f07e724e4dc8483702d5e1ede4522749 (git)
Affected: 6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e , < 990dc90750772622d44ca2ea6652c521e6f67e16 (git)
Affected: 6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e , < bd551e7c85939de2182010273450bfa78c3742fc (git)
Affected: 6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e , < 366369b89bedd59b1425386e8d4a18a466e420e4 (git)
Affected: 6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e , < 470403639114895e2697c766fbe17be8d0e9b67a (git)
Affected: 6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e , < 788755756dd4a6aba1de479fec20b0fa600e7f19 (git)
Affected: 6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e , < d00889080ab60051627dab1d85831cd9db750e2a (git)

Linux

Affected: 3.10
Unaffected: 0 , < 3.10 (semver)
Unaffected: 4.4.273 , ≤ 4.4.* (semver)
Unaffected: 4.9.273 , ≤ 4.9.* (semver)
Unaffected: 4.14.237 , ≤ 4.14.* (semver)
Unaffected: 4.19.195 , ≤ 4.19.* (semver)
Unaffected: 5.4.126 , ≤ 5.4.* (semver)
Unaffected: 5.10.44 , ≤ 5.10.* (semver)
Unaffected: 5.12.11 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

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                  "versionEndExcluding": "5.10.44",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.12.11",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.13",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3: ep0: fix NULL pointer exception\n\nThere is no validation of the index from dwc3_wIndex_to_dep() and we might\nbe referring a non-existing ep and trigger a NULL pointer exception. In\ncertain configurations we might use fewer eps and the index might wrongly\nindicate a larger ep index than existing.\n\nBy adding this validation from the patch we can actually report a wrong\nindex back to the caller.\n\nIn our usecase we are using a composite device on an older kernel, but\nupstream might use this fix also. Unfortunately, I cannot describe the\nhardware for others to reproduce the issue as it is a proprietary\nimplementation.\n\n[   82.958261] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a4\n[   82.966891] Mem abort info:\n[   82.969663]   ESR = 0x96000006\n[   82.972703]   Exception class = DABT (current EL), IL = 32 bits\n[   82.978603]   SET = 0, FnV = 0\n[   82.981642]   EA = 0, S1PTW = 0\n[   82.984765] Data abort info:\n[   82.987631]   ISV = 0, ISS = 0x00000006\n[   82.991449]   CM = 0, WnR = 0\n[   82.994409] user pgtable: 4k pages, 39-bit VAs, pgdp = 00000000c6210ccc\n[   83.000999] [00000000000000a4] pgd=0000000053aa5003, pud=0000000053aa5003, pmd=0000000000000000\n[   83.009685] Internal error: Oops: 96000006 [#1] PREEMPT SMP\n[   83.026433] Process irq/62-dwc3 (pid: 303, stack limit = 0x000000003985154c)\n[   83.033470] CPU: 0 PID: 303 Comm: irq/62-dwc3 Not tainted 4.19.124 #1\n[   83.044836] pstate: 60000085 (nZCv daIf -PAN -UAO)\n[   83.049628] pc : dwc3_ep0_handle_feature+0x414/0x43c\n[   83.054558] lr : dwc3_ep0_interrupt+0x3b4/0xc94\n\n...\n\n[   83.141788] Call trace:\n[   83.144227]  dwc3_ep0_handle_feature+0x414/0x43c\n[   83.148823]  dwc3_ep0_interrupt+0x3b4/0xc94\n[   83.181546] ---[ end trace aac6b5267d84c32f ]---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-18T11:36:23.900Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/96b74a99d360235c24052f1d060e64ac53f43528"
        },
        {
          "url": "https://git.kernel.org/stable/c/60156089f07e724e4dc8483702d5e1ede4522749"
        },
        {
          "url": "https://git.kernel.org/stable/c/990dc90750772622d44ca2ea6652c521e6f67e16"
        },
        {
          "url": "https://git.kernel.org/stable/c/bd551e7c85939de2182010273450bfa78c3742fc"
        },
        {
          "url": "https://git.kernel.org/stable/c/366369b89bedd59b1425386e8d4a18a466e420e4"
        },
        {
          "url": "https://git.kernel.org/stable/c/470403639114895e2697c766fbe17be8d0e9b67a"
        },
        {
          "url": "https://git.kernel.org/stable/c/788755756dd4a6aba1de479fec20b0fa600e7f19"
        },
        {
          "url": "https://git.kernel.org/stable/c/d00889080ab60051627dab1d85831cd9db750e2a"
        }
      ],
      "title": "usb: dwc3: ep0: fix NULL pointer exception",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47269",
    "datePublished": "2024-05-21T14:19:59.207Z",
    "dateReserved": "2024-05-21T13:27:52.127Z",
    "dateUpdated": "2025-12-18T11:36:23.900Z",
    "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:2025-07382

CVE-2021-47269 (GCVE-0-2021-47269)

Tags

Sightings

Nomenclature