The smbhash function in fs/cifs/smbencrypt.c in the Linux kernel 4.9.x before 4.9.1 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual page for a scatterlist.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000967 advisory.

    The smbhash function in fs/cifs/smbencrypt.c in the Linux kernel 4.9.x before 4.9.1 interacts incorrectly     with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or     memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual     page for a scatterlist.

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-2026-001809 advisory.

    The smbhash function in fs/cifs/smbencrypt.c in the Linux kernel 4.9.x before 4.9.1 interacts incorrectly     with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or     memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual     page for a scatterlist.

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-2026-002220 advisory.

    The smbhash function in fs/cifs/smbencrypt.c in the Linux kernel 4.9.x before 4.9.1 interacts incorrectly     with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or     memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual     page for a scatterlist.

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.

ID	Name	Product	Family	Severity
291119	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000967)	Nessus	Unity Linux Local Security Checks	medium
286590	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001809)	Nessus	Unity Linux Local Security Checks	medium
284896	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002220)	Nessus	Unity Linux Local Security Checks	medium

Detections

Analytics

CVE-2016-10154

medium

Tenable Plugins

medium

medium

medium