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CVE-2022-50742

Опубликовано: 24 дек. 2025
Источник: redhat
CVSS3: 5.5

Описание

In the Linux kernel, the following vulnerability has been resolved: misc: ocxl: fix possible refcount leak in afu_ioctl() eventfd_ctx_put need to be called to put the refcount that gotten by eventfd_ctx_fdget when ocxl_irq_set_handler fails.

A flaw was found in the Linux kernel's misc: ocxl component. A local attacker with low privileges could exploit a reference count leak in the afu_ioctl() function. This flaw occurs when ocxl_irq_set_handler fails to call eventfd_ctx_put to release a reference count obtained by eventfd_ctx_fdget. This could lead to a denial of service (DoS) due to resource exhaustion.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelNot affected
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

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Дополнительная информация

Статус:

Low
Дефект:
CWE-772
https://bugzilla.redhat.com/show_bug.cgi?id=2425192kernel: Linux kernel: Denial of Service via refcount leak in ocxl afu_ioctl()

5.5 Medium

CVSS3

Связанные уязвимости

ubuntu
9 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: misc: ocxl: fix possible refcount leak in afu_ioctl() eventfd_ctx_put need to be called to put the refcount that gotten by eventfd_ctx_fdget when ocxl_irq_set_handler fails.

nvd
9 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: misc: ocxl: fix possible refcount leak in afu_ioctl() eventfd_ctx_put need to be called to put the refcount that gotten by eventfd_ctx_fdget when ocxl_irq_set_handler fails.

debian
9 месяцев назад

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

github
9 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: misc: ocxl: fix possible refcount leak in afu_ioctl() eventfd_ctx_put need to be called to put the refcount that gotten by eventfd_ctx_fdget when ocxl_irq_set_handler fails.

suse-cvrf
7 месяцев назад

Security update for the Linux Kernel

5.5 Medium

CVSS3