In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: fix deadlock in remain-on-channel mt76_remain_on_channel() and mt76_roc_complete() call mt76_set_channel() while already holding dev->mutex. Since mt76_set_channel() also acquires dev->mutex, this results in a deadlock. Use __mt76_set_channel() instead of mt76_set_channel(). Add cancel_delayed_work_sync() for mac_work before acquiring the mutex in mt76_remain_on_channel() to prevent a secondary deadlock with the mac_work workqueue.

ubuntu_linux USN-8663-1: Ubuntu 24.04 LTS / Ubuntu 26.04 LTS / Ubuntu Pro Realtime 24.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8663-1)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - wifi: mt76: fix deadlock in remain-on-channel mt76_remain_on_channel() and mt76_roc_complete() call     mt76_set_channel() while already holding dev->mutex. Since mt76_set_channel() also acquires dev->mutex,     this results in a deadlock. Use __mt76_set_channel() instead of mt76_set_channel(). Add     cancel_delayed_work_sync() for mac_work before acquiring the mutex in mt76_remain_on_channel() to prevent     a secondary deadlock with the mac_work workqueue. (CVE-2026-53100)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
340045	Ubuntu 26.04 LTS : Linux kernel (NVIDIA BaseOS) vulnerabilities (USN-8664-1)	Nessus	Ubuntu Local Security Checks	Local	high
322590	Linux Distros Unpatched Vulnerability : CVE-2026-53100	Nessus	Misc.	Local	medium

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CVE-2026-53100

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