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CVE-2026-74531

Опубликовано: 15 авг. 2026
Источник: redhat
CVSS3: 5.5

Описание

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: hold conn reference in abort_conn_sync() There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.

A flaw was found in the Bluetooth hci_conn component of the Linux kernel. A theoretical Use-After-Free (UAF) vulnerability exists if a connection (conn) is prematurely freed while the hci_sync task is still active. This could potentially allow an attacker to cause a system crash or execute arbitrary code.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelFix deferred
Red Hat Enterprise Linux 6kernelOut of support scope
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise Linux 9kernelFix deferred
Red Hat Enterprise Linux 9kernel-rtFix deferred

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-825
https://bugzilla.redhat.com/show_bug.cgi?id=2516964kernel: Bluetooth: hci_conn: hold conn reference in abort_conn_sync()

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 8.8
ubuntu
около 2 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: hold conn reference in abort_conn_sync() There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.

CVSS3: 8.8
nvd
около 2 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: hold conn reference in abort_conn_sync() There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.

CVSS3: 6.3
msrc
около 1 месяца назад

Bluetooth: hci_conn: hold conn reference in abort_conn_sync()

CVSS3: 8.8
debian
около 2 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: B ...

CVSS3: 8.8
github
около 2 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: hold conn reference in abort_conn_sync() There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.

5.5 Medium

CVSS3