Detections
Analytics
Unity Linux 20.1050e Security Update: kernel (UTSA-2026-101970)
medium Nessus Plugin ID 337322
Synopsis
The Unity Linux host is missing one or more security updates.Description
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101970 advisory.In the Linux kernel, the following vulnerability has been resolved:
bpf: fix end-of-list detection in cgroup_storage_get_next_key()
list_next_entry() never returns NULL -- when the current element is the last entry it wraps to the list head via container_of(). The subsequent NULL check is therefore dead code and get_next_key() never returns
-ENOENT for the last element, instead reading storage->key from a bogus pointer that aliases internal map fields and copying the result to userspace.
Replace it with list_entry_is_head() so the function correctly returns
-ENOENT when there are no more entries.
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.
Solution
Update the affected kernel package.See Also
https://nvd.nist.gov/vuln/detail/CVE-2026-45838
Plugin Details
Severity: Medium
ID: 337322
File Name: unity_linux_UTSA-2026-101970.nasl
Version: 1.1
Type: Local
Published: 8/18/2026
Updated: 8/18/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 94.14
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.4
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2026-45838
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 4.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 8/17/2026
Vulnerability Publication Date: 5/27/2026
Reference Information
CVE: CVE-2026-45838