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CVE-2026-93791

Опубликовано: 24 сент. 2026
Источник: redhat
CVSS3: 5.5
EPSS Низкий

Описание

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: add a check on the tid coming from the firmware ba_notif->tid is a firmware-controlled u8 that is used directly as an array index into tid_data[] without any validation. Add a bounds check against IWL_MAX_TID_COUNT before dereferencing the array.

A flaw was found in the Linux kernel's iwlwifi wireless driver. This vulnerability can lead to a Denial of Service (DoS) or kernel memory corruption due to an out-of-bounds memory access. When handling block acknowledgment notifications, the driver directly uses a traffic identifier (TID) provided by the device firmware as an array index without bounds validation. A compromised or malicious Wi-Fi firmware could send an invalid identifier, causing an out-of-bounds read or write that crashes the system.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelFix deferred
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelFix deferred
Red Hat Enterprise Linux 8kernel-rtFix deferred
Red Hat Enterprise Linux 9kernelFix deferred
Red Hat Enterprise Linux 9kernel-rtFix deferred
Red Hat OpenShift Container Platform 4openshift/ose-rhel-coreos-8Fix deferred
Red Hat OpenShift Container Platform 4openshift/ose-rhel-coreos-9Fix deferred

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-125
https://bugzilla.redhat.com/show_bug.cgi?id=2540505kernel: wifi: iwlwifi: mvm: add a check on the tid coming from the firmware

EPSS

Процентиль: 6%
0.00168
Низкий

5.5 Medium

CVSS3

Связанные уязвимости

ubuntu
18 дней назад

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: add a check on the tid coming from the firmware ba_notif->tid is a firmware-controlled u8 that is used directly as an array index into tid_data[] without any validation. Add a bounds check against IWL_MAX_TID_COUNT before dereferencing the array.

nvd
18 дней назад

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: add a check on the tid coming from the firmware ba_notif->tid is a firmware-controlled u8 that is used directly as an array index into tid_data[] without any validation. Add a bounds check against IWL_MAX_TID_COUNT before dereferencing the array.

CVSS3: 4.1
msrc
15 дней назад

wifi: iwlwifi: mvm: add a check on the tid coming from the firmware

debian
18 дней назад

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

github
18 дней назад

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: add a check on the tid coming from the firmware ba_notif->tid is a firmware-controlled u8 that is used directly as an array index into tid_data[] without any validation. Add a bounds check against IWL_MAX_TID_COUNT before dereferencing the array.

EPSS

Процентиль: 6%
0.00168
Низкий

5.5 Medium

CVSS3