Vulnerability-Lookup

BDU:2025-10262 (CVE-2022-49111)

Vulnerability from fstec – Published: 2025-08-26 – Updated: 2026-01-20 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции hci_disconn_phylink_complete_evt() модуля net/bluetooth/hci_event.c подсистемы Bluetooth ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации.

Summary

Уязвимость функции hci_disconn_phylink_complete_evt() модуля net/bluetooth/hci_event.c подсистемы Bluetooth ядра операционной системы Linux связана с повторным использованием ранее освобожденной памяти. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации.

Severity

7.5 (High) CVSS 2.0


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

7.8 (High) CVSS 3.1


                      
                        CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2022-49111

References

20 references

URL
https://www.cve.org/CVERecord?id=CVE-2022-49111
https://git.kernel.org/stable/c/c41de54b0a963e59e4dd04c029a4a6d73f45ef9c
https://git.kernel.org/stable/c/643a6c26bd32e339d00ad97b8822b6db009e803c
https://git.kernel.org/stable/c/684e505406abaeabe0058e9776f9210bf2747953
https://git.kernel.org/stable/c/3803d896ddd97c7c16689a5381c0960040727647
https://git.kernel.org/stable/c/2cc803804ec9a296b3156855d6c8c4ca1c6b84be
https://git.kernel.org/stable/c/d404765dffdbd8dcd14758695d0c96c52fb2e624
https://git.kernel.org/stable/c/4da302b90b96c309987eb9b37c8547f939f042d2
https://git.kernel.org/stable/c/b3c2ea1fd444b3bb7b82bfd2c3a45418f85c2502
https://lore.kernel.org/linux-cve-announce/2025022602-CVE-2022-49111-8795@gregkh/
https://git.kernel.org/linus/f63d24baff787e13b723d86fe036f84bdbc35045
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.311
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.276
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.238
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.189
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.111
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.34
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.20
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3
https://cve.omp.ru/bb30515

Impacted products

2 products from 2 vendors

Vendors

Сообщество свободного программного обеспечения, ООО «Открытая мобильная платформа»

Products

Linux, ОС Аврора (запись в едином реестре российских программ №1543)

Versions

от 5.16 до 5.16.19 включительно (Linux), от 4.10 до 4.14.275 включительно (Linux), от 4.15 до 4.19.237 включительно (Linux), от 4.20 до 5.4.188 включительно (Linux), от 5.5 до 5.10.110 включительно (Linux), от 5.11 до 5.15.33 включительно (Linux), от 5.17 до 5.17.2 включительно (Linux), от 2.6.12 до 4.9.310 включительно (Linux), до 5.1.5 включительно (ОС Аврора)

Product types

Operating system

Platforms

Сообщество свободного программного обеспечения Linux от 5.16 до 5.16.19 включительно, Сообщество свободного программного обеспечения Linux от 4.10 до 4.14.275 включительно, Сообщество свободного программного обеспечения Linux от 4.15 до 4.19.237 включительно, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.188 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.110 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.33 включительно, Сообщество свободного программного обеспечения Linux от 5.17 до 5.17.2 включительно, Сообщество свободного программного обеспечения Linux от 2.6.12 до 4.9.310 включительно, ООО «Открытая мобильная платформа» ОС Аврора до 5.1.5 включительно (запись в едином реестре российских программ №1543)

Mitigations

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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, \u041e\u041e\u041e \u00ab\u041e\u0442\u043a\u0440\u044b\u0442\u0430\u044f \u043c\u043e\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u043e\u0442 5.16 \u0434\u043e 5.16.19 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.10 \u0434\u043e 4.14.275 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.237 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.188 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.110 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.33 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.17 \u0434\u043e 5.17.2 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 2.6.12 \u0434\u043e 4.9.310 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u0434\u043e 5.1.5 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (\u041e\u0421 \u0410\u0432\u0440\u043e\u0440\u0430)",
  "\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/c41de54b0a963e59e4dd04c029a4a6d73f45ef9c\nhttps://git.kernel.org/stable/c/643a6c26bd32e339d00ad97b8822b6db009e803c\nhttps://git.kernel.org/stable/c/684e505406abaeabe0058e9776f9210bf2747953\nhttps://git.kernel.org/stable/c/3803d896ddd97c7c16689a5381c0960040727647\nhttps://git.kernel.org/stable/c/2cc803804ec9a296b3156855d6c8c4ca1c6b84be\nhttps://git.kernel.org/stable/c/d404765dffdbd8dcd14758695d0c96c52fb2e624\nhttps://git.kernel.org/stable/c/4da302b90b96c309987eb9b37c8547f939f042d2\nhttps://git.kernel.org/stable/c/b3c2ea1fd444b3bb7b82bfd2c3a45418f85c2502\nhttps://lore.kernel.org/linux-cve-announce/2025022602-CVE-2022-49111-8795@gregkh/\nhttps://git.kernel.org/linus/f63d24baff787e13b723d86fe036f84bdbc35045\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.311\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.276\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.238\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.189\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.111\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.34\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.20\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3\n\n\u0414\u043b\u044f \u041e\u0421 \u0410\u0432\u0440\u043e\u0440\u0430: https://cve.omp.ru/bb30515",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "18.03.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "20.01.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "26.08.2025",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2025-10262",
  "\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-2022-49111",
  "\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, \u041e\u0421 \u0410\u0432\u0440\u043e\u0440\u0430 (\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 \u21161543)",
  "\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 5.16 \u0434\u043e 5.16.19 \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 4.14.275 \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 4.19.237 \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 5.4.188 \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 5.10.110 \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 5.15.33 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.17 \u0434\u043e 5.17.2 \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 2.6.12 \u0434\u043e 4.9.310 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u041e\u041e\u041e \u00ab\u041e\u0442\u043a\u0440\u044b\u0442\u0430\u044f \u043c\u043e\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430\u00bb \u041e\u0421 \u0410\u0432\u0440\u043e\u0440\u0430 \u0434\u043e 5.1.5 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e  (\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 \u21161543)",
  "\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 hci_disconn_phylink_complete_evt() \u043c\u043e\u0434\u0443\u043b\u044f net/bluetooth/hci_event.c \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b Bluetooth \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 \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\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 hci_disconn_phylink_complete_evt() \u043c\u043e\u0434\u0443\u043b\u044f net/bluetooth/hci_event.c \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b Bluetooth \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 \u0440\u0430\u043d\u0435\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\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 \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\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-2022-49111\nhttps://git.kernel.org/stable/c/c41de54b0a963e59e4dd04c029a4a6d73f45ef9c\nhttps://git.kernel.org/stable/c/643a6c26bd32e339d00ad97b8822b6db009e803c\nhttps://git.kernel.org/stable/c/684e505406abaeabe0058e9776f9210bf2747953\nhttps://git.kernel.org/stable/c/3803d896ddd97c7c16689a5381c0960040727647\nhttps://git.kernel.org/stable/c/2cc803804ec9a296b3156855d6c8c4ca1c6b84be\nhttps://git.kernel.org/stable/c/d404765dffdbd8dcd14758695d0c96c52fb2e624\nhttps://git.kernel.org/stable/c/4da302b90b96c309987eb9b37c8547f939f042d2\nhttps://git.kernel.org/stable/c/b3c2ea1fd444b3bb7b82bfd2c3a45418f85c2502\nhttps://lore.kernel.org/linux-cve-announce/2025022602-CVE-2022-49111-8795@gregkh/\nhttps://git.kernel.org/linus/f63d24baff787e13b723d86fe036f84bdbc35045\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.311\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.276\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.238\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.189\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.111\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.34\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.20\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3\nhttps://cve.omp.ru/bb30515",
  "\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": "\u0412\u044b\u0441\u043e\u043a\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 7,5)\n\u0412\u044b\u0441\u043e\u043a\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 7,8)"
}

CVE-2022-49111 (GCVE-0-2022-49111)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:54 – Updated: 2026-08-05 08:53

Title

Bluetooth: Fix use after free in hci_send_acl

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix use after free in hci_send_acl This fixes the following trace caused by receiving HCI_EV_DISCONN_PHY_LINK_COMPLETE which does call hci_conn_del without first checking if conn->type is in fact AMP_LINK and in case it is do properly cleanup upper layers with hci_disconn_cfm: ================================================================== BUG: KASAN: use-after-free in hci_send_acl+0xaba/0xc50 Read of size 8 at addr ffff88800e404818 by task bluetoothd/142 CPU: 0 PID: 142 Comm: bluetoothd Not tainted 5.17.0-rc5-00006-gda4022eeac1a #7 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x45/0x59 print_address_description.constprop.0+0x1f/0x150 kasan_report.cold+0x7f/0x11b hci_send_acl+0xaba/0xc50 l2cap_do_send+0x23f/0x3d0 l2cap_chan_send+0xc06/0x2cc0 l2cap_sock_sendmsg+0x201/0x2b0 sock_sendmsg+0xdc/0x110 sock_write_iter+0x20f/0x370 do_iter_readv_writev+0x343/0x690 do_iter_write+0x132/0x640 vfs_writev+0x198/0x570 do_writev+0x202/0x280 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RSP: 002b:00007ffce8a099b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 14 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 RDX: 0000000000000001 RSI: 00007ffce8a099e0 RDI: 0000000000000015 RAX: ffffffffffffffda RBX: 00007ffce8a099e0 RCX: 00007f788fc3cf77 R10: 00007ffce8af7080 R11: 0000000000000246 R12: 000055e4ccf75580 RBP: 0000000000000015 R08: 0000000000000002 R09: 0000000000000001 </TASK> R13: 000055e4ccf754a0 R14: 000055e4ccf75cd0 R15: 000055e4ccf4a6b0 Allocated by task 45: kasan_save_stack+0x1e/0x40 __kasan_kmalloc+0x81/0xa0 hci_chan_create+0x9a/0x2f0 l2cap_conn_add.part.0+0x1a/0xdc0 l2cap_connect_cfm+0x236/0x1000 le_conn_complete_evt+0x15a7/0x1db0 hci_le_conn_complete_evt+0x226/0x2c0 hci_le_meta_evt+0x247/0x450 hci_event_packet+0x61b/0xe90 hci_rx_work+0x4d5/0xc50 process_one_work+0x8fb/0x15a0 worker_thread+0x576/0x1240 kthread+0x29d/0x340 ret_from_fork+0x1f/0x30 Freed by task 45: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_set_free_info+0x20/0x30 __kasan_slab_free+0xfb/0x130 kfree+0xac/0x350 hci_conn_cleanup+0x101/0x6a0 hci_conn_del+0x27e/0x6c0 hci_disconn_phylink_complete_evt+0xe0/0x120 hci_event_packet+0x812/0xe90 hci_rx_work+0x4d5/0xc50 process_one_work+0x8fb/0x15a0 worker_thread+0x576/0x1240 kthread+0x29d/0x340 ret_from_fork+0x1f/0x30 The buggy address belongs to the object at ffff88800c0f0500 The buggy address is located 24 bytes inside of which belongs to the cache kmalloc-128 of size 128 The buggy address belongs to the page: 128-byte region [ffff88800c0f0500, ffff88800c0f0580) flags: 0x100000000000200(slab|node=0|zone=1) page:00000000fe45cd86 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xc0f0 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 raw: 0100000000000200 ffffea00003a2c80 dead000000000004 ffff8880078418c0 page dumped because: kasan: bad access detected ffff88800c0f0400: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc Memory state around the buggy address: >ffff88800c0f0500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88800c0f0480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88800c0f0580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ---truncated---

Severity

8.8 (High)


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

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-27 18:17 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux mitre root

References

9 references

URL	Tags
https://git.kernel.org/stable/c/c41de54b0a963e59e…
https://git.kernel.org/stable/c/643a6c26bd32e339d…
https://git.kernel.org/stable/c/684e505406abaeabe…
https://git.kernel.org/stable/c/3803d896ddd97c7c1…
https://git.kernel.org/stable/c/2cc803804ec9a296b…
https://git.kernel.org/stable/c/d404765dffdbd8dcd…
https://git.kernel.org/stable/c/4da302b90b96c3099…
https://git.kernel.org/stable/c/b3c2ea1fd444b3bb7…
https://git.kernel.org/stable/c/f63d24baff787e13b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6 , < c41de54b0a963e59e4dd04c029a4a6d73f45ef9c (git) Affected: 9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6 , < 643a6c26bd32e339d00ad97b8822b6db009e803c (git) Affected: 9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6 , < 684e505406abaeabe0058e9776f9210bf2747953 (git) Affected: 9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6 , < 3803d896ddd97c7c16689a5381c0960040727647 (git) Affected: 9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6 , < 2cc803804ec9a296b3156855d6c8c4ca1c6b84be (git) Affected: 9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6 , < d404765dffdbd8dcd14758695d0c96c52fb2e624 (git) Affected: 9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6 , < 4da302b90b96c309987eb9b37c8547f939f042d2 (git) Affected: 9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6 , < b3c2ea1fd444b3bb7b82bfd2c3a45418f85c2502 (git) Affected: 9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6 , < f63d24baff787e13b723d86fe036f84bdbc35045 (git)
Linux	Linux	Affected: 3.8 Unaffected: 0 , < 3.8 (semver) Unaffected: 4.9.311 , ≤ 4.9.* (semver) Unaffected: 4.14.276 , ≤ 4.14.* (semver) Unaffected: 4.19.238 , ≤ 4.19.* (semver) Unaffected: 5.4.189 , ≤ 5.4.* (semver) Unaffected: 5.10.111 , ≤ 5.10.* (semver) Unaffected: 5.15.34 , ≤ 5.15.* (semver) Unaffected: 5.16.20 , ≤ 5.16.* (semver) Unaffected: 5.17.3 , ≤ 5.17.* (semver) Unaffected: 5.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49111",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-27T18:17:22.265818Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-27T18:22:35.037Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_event.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c41de54b0a963e59e4dd04c029a4a6d73f45ef9c",
              "status": "affected",
              "version": "9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6",
              "versionType": "git"
            },
            {
              "lessThan": "643a6c26bd32e339d00ad97b8822b6db009e803c",
              "status": "affected",
              "version": "9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6",
              "versionType": "git"
            },
            {
              "lessThan": "684e505406abaeabe0058e9776f9210bf2747953",
              "status": "affected",
              "version": "9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6",
              "versionType": "git"
            },
            {
              "lessThan": "3803d896ddd97c7c16689a5381c0960040727647",
              "status": "affected",
              "version": "9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6",
              "versionType": "git"
            },
            {
              "lessThan": "2cc803804ec9a296b3156855d6c8c4ca1c6b84be",
              "status": "affected",
              "version": "9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6",
              "versionType": "git"
            },
            {
              "lessThan": "d404765dffdbd8dcd14758695d0c96c52fb2e624",
              "status": "affected",
              "version": "9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6",
              "versionType": "git"
            },
            {
              "lessThan": "4da302b90b96c309987eb9b37c8547f939f042d2",
              "status": "affected",
              "version": "9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6",
              "versionType": "git"
            },
            {
              "lessThan": "b3c2ea1fd444b3bb7b82bfd2c3a45418f85c2502",
              "status": "affected",
              "version": "9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6",
              "versionType": "git"
            },
            {
              "lessThan": "f63d24baff787e13b723d86fe036f84bdbc35045",
              "status": "affected",
              "version": "9eef6b3a9e38d5f8ad315b2a7db153392e6a77d6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_event.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.8"
            },
            {
              "lessThan": "3.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.238",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.311",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.276",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.238",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.189",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.111",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.34",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.20",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.3",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix use after free in hci_send_acl\n\nThis fixes the following trace caused by receiving\nHCI_EV_DISCONN_PHY_LINK_COMPLETE which does call hci_conn_del without\nfirst checking if conn-\u003etype is in fact AMP_LINK and in case it is\ndo properly cleanup upper layers with hci_disconn_cfm:\n\n ==================================================================\n    BUG: KASAN: use-after-free in hci_send_acl+0xaba/0xc50\n    Read of size 8 at addr ffff88800e404818 by task bluetoothd/142\n\n    CPU: 0 PID: 142 Comm: bluetoothd Not tainted\n    5.17.0-rc5-00006-gda4022eeac1a #7\n    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n    rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n    Call Trace:\n     \u003cTASK\u003e\n     dump_stack_lvl+0x45/0x59\n     print_address_description.constprop.0+0x1f/0x150\n     kasan_report.cold+0x7f/0x11b\n     hci_send_acl+0xaba/0xc50\n     l2cap_do_send+0x23f/0x3d0\n     l2cap_chan_send+0xc06/0x2cc0\n     l2cap_sock_sendmsg+0x201/0x2b0\n     sock_sendmsg+0xdc/0x110\n     sock_write_iter+0x20f/0x370\n     do_iter_readv_writev+0x343/0x690\n     do_iter_write+0x132/0x640\n     vfs_writev+0x198/0x570\n     do_writev+0x202/0x280\n     do_syscall_64+0x38/0x90\n     entry_SYSCALL_64_after_hwframe+0x44/0xae\n    RSP: 002b:00007ffce8a099b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014\n    Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3\n    0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 14 00 00 00 0f 05\n    \u003c48\u003e 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10\n    RDX: 0000000000000001 RSI: 00007ffce8a099e0 RDI: 0000000000000015\n    RAX: ffffffffffffffda RBX: 00007ffce8a099e0 RCX: 00007f788fc3cf77\n    R10: 00007ffce8af7080 R11: 0000000000000246 R12: 000055e4ccf75580\n    RBP: 0000000000000015 R08: 0000000000000002 R09: 0000000000000001\n    \u003c/TASK\u003e\n    R13: 000055e4ccf754a0 R14: 000055e4ccf75cd0 R15: 000055e4ccf4a6b0\n\n    Allocated by task 45:\n        kasan_save_stack+0x1e/0x40\n        __kasan_kmalloc+0x81/0xa0\n        hci_chan_create+0x9a/0x2f0\n        l2cap_conn_add.part.0+0x1a/0xdc0\n        l2cap_connect_cfm+0x236/0x1000\n        le_conn_complete_evt+0x15a7/0x1db0\n        hci_le_conn_complete_evt+0x226/0x2c0\n        hci_le_meta_evt+0x247/0x450\n        hci_event_packet+0x61b/0xe90\n        hci_rx_work+0x4d5/0xc50\n        process_one_work+0x8fb/0x15a0\n        worker_thread+0x576/0x1240\n        kthread+0x29d/0x340\n        ret_from_fork+0x1f/0x30\n\n    Freed by task 45:\n        kasan_save_stack+0x1e/0x40\n        kasan_set_track+0x21/0x30\n        kasan_set_free_info+0x20/0x30\n        __kasan_slab_free+0xfb/0x130\n        kfree+0xac/0x350\n        hci_conn_cleanup+0x101/0x6a0\n        hci_conn_del+0x27e/0x6c0\n        hci_disconn_phylink_complete_evt+0xe0/0x120\n        hci_event_packet+0x812/0xe90\n        hci_rx_work+0x4d5/0xc50\n        process_one_work+0x8fb/0x15a0\n        worker_thread+0x576/0x1240\n        kthread+0x29d/0x340\n        ret_from_fork+0x1f/0x30\n\n    The buggy address belongs to the object at ffff88800c0f0500\n    The buggy address is located 24 bytes inside of\n    which belongs to the cache kmalloc-128 of size 128\n    The buggy address belongs to the page:\n    128-byte region [ffff88800c0f0500, ffff88800c0f0580)\n    flags: 0x100000000000200(slab|node=0|zone=1)\n    page:00000000fe45cd86 refcount:1 mapcount:0\n    mapping:0000000000000000 index:0x0 pfn:0xc0f0\n    raw: 0000000000000000 0000000080100010 00000001ffffffff\n    0000000000000000\n    raw: 0100000000000200 ffffea00003a2c80 dead000000000004\n    ffff8880078418c0\n    page dumped because: kasan: bad access detected\n    ffff88800c0f0400: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc\n    Memory state around the buggy address:\n    \u003effff88800c0f0500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb\n    ffff88800c0f0480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc\n    ffff88800c0f0580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc\n                   \n---truncated---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerability is in the Bluetooth HCI event path (hci_disconn_phylink_complete_evt), reachable from an adjacent Bluetooth peer/controller that induces HCI_EV_DISCONN_PHY_LINK_COMPLETE, matching kernel guidance that Bluetooth bugs are Adjacent.\nAC:L - The attacker can reliably trigger the bug by causing a DISCONN_PHY_LINK_COMPLETE event whose phy_handle matches an existing non-AMP connection handle; no uncontrolled race or special victim state is required beyond an active L2CAP/LE connection.\nPR:N - Exploitation does not require local privileges on the victim; an unauthenticated adjacent Bluetooth attacker can drive the HCI event path that frees the connection object, consistent with other Bluetooth HCI UAF scores.\nUI:N - No user interaction is required; once Bluetooth is up and a connection exists, the malicious HCI disconnect event and subsequent send path trigger the UAF without victim action.\nS:U - Impact is confined to the local kernel Bluetooth stack (memory corruption/privilege escalation within the same OS authority), with no VM escape or other security-authority boundary crossed.\nC:H - This is a heap use-after-free of hci_chan; per guidance UAFs enable control of freed object contents and arbitrary read primitives, so confidentiality impact is High.\nI:H - The same UAF of hci_chan used by hci_send_acl enables heap spraying and write/control-flow hijacking primitives, so integrity impact is High.\nA:H - The demonstrated KASAN use-after-free causes kernel oops/crash on the send path, and UAFs are scored High for availability even when not fully exploited."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:53:57.294Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c41de54b0a963e59e4dd04c029a4a6d73f45ef9c"
        },
        {
          "url": "https://git.kernel.org/stable/c/643a6c26bd32e339d00ad97b8822b6db009e803c"
        },
        {
          "url": "https://git.kernel.org/stable/c/684e505406abaeabe0058e9776f9210bf2747953"
        },
        {
          "url": "https://git.kernel.org/stable/c/3803d896ddd97c7c16689a5381c0960040727647"
        },
        {
          "url": "https://git.kernel.org/stable/c/2cc803804ec9a296b3156855d6c8c4ca1c6b84be"
        },
        {
          "url": "https://git.kernel.org/stable/c/d404765dffdbd8dcd14758695d0c96c52fb2e624"
        },
        {
          "url": "https://git.kernel.org/stable/c/4da302b90b96c309987eb9b37c8547f939f042d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/b3c2ea1fd444b3bb7b82bfd2c3a45418f85c2502"
        },
        {
          "url": "https://git.kernel.org/stable/c/f63d24baff787e13b723d86fe036f84bdbc35045"
        }
      ],
      "title": "Bluetooth: Fix use after free in hci_send_acl",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49111",
    "datePublished": "2025-02-26T01:54:56.622Z",
    "dateReserved": "2025-02-26T01:49:39.261Z",
    "dateUpdated": "2026-08-05T08:53:57.294Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

BDU:2025-10262 (CVE-2022-49111)

CVE-2022-49111 (GCVE-0-2022-49111)

Tags

Sightings

Nomenclature

Related by attack behaviour