In the Linux kernel, the following vulnerability has been resolved: afs: Fix netns teardown to cancel the preallocation charger Fix the teardown of an afs network namespace to make sure it cancels the work item that keeps the preallocated rxrpc call/conn/peer queue charged before incoming calls are disabled (i.e. listen 0). Also, if net->live is false because the afs netns is being deleted, make afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid requeuing the charger. (This was found by AI review).

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104540 advisory.

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

    afs: Fix netns teardown to cancel the preallocation charger

    Fix the teardown of an afs network namespace to make sure it cancels the     work item that keeps the preallocated rxrpc call/conn/peer queue charged     before incoming calls are disabled (i.e. listen 0).

    Also, if net->live is false because the afs netns is being deleted, make     afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid     requeuing the charger.

    (This was found by AI review).

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104544 advisory.

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

    afs: Fix netns teardown to cancel the preallocation charger

    Fix the teardown of an afs network namespace to make sure it cancels the     work item that keeps the preallocated rxrpc call/conn/peer queue charged     before incoming calls are disabled (i.e. listen 0).

    Also, if net->live is false because the afs netns is being deleted, make     afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid     requeuing the charger.

    (This was found by AI review).

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

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

  - afs: Fix netns teardown to cancel the preallocation charger Fix the teardown of an afs network namespace     to make sure it cancels the work item that keeps the preallocated rxrpc call/conn/peer queue charged     before incoming calls are disabled (i.e. listen 0). Also, if net->live is false because the afs netns is     being deleted, make afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid requeuing     the charger. (This was found by AI review). (CVE-2026-74427)

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

An update of the linux package has been released.

ID	Name	Product	Family	Type	Severity
343049	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500248)	Nessus	Oracle Linux Local Security Checks	Local	high
339579	Unity Linux 20.1050e Security Update: kernel (UTSA-2026-104540)	Nessus	Unity Linux Local Security Checks	Local	critical
339564	Unity Linux 20.1050a Security Update: kernel (UTSA-2026-104544)	Nessus	Unity Linux Local Security Checks	Local	critical
337615	Linux Distros Unpatched Vulnerability : CVE-2026-74427	Nessus	Misc.	Local	critical
334784	Photon OS 5.0: Linux PHSA-2026-5.0-92-0952	Nessus	PhotonOS Local Security Checks	Local	high

Detections

Analytics

CVE-2026-74427

critical

Tenable Plugins

high

critical

critical

critical

high