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Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005110)
medium Nessus Plugin ID 296888
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-2026-005110 advisory.In the Linux kernel, the following vulnerability has been resolved:
USB: serial: mos7840: fix crash on resume
Since commit c49cfa917025 (USB: serial: use generic method if no alternative is provided in usb serial layer), USB serial core calls the generic resume implementation when the driver has not provided one.
This can trigger a crash on resume with mos7840 since support for multiple read URBs was added back in 2011. Specifically, both port read URBs are now submitted on resume for open ports, but the context pointer of the second URB is left set to the core rather than mos7840 port structure.
Fix this by implementing dedicated suspend and resume functions for mos7840.
Tested with Delock 87414 USB 2.0 to 4x serial adapter.
[ johan: analyse crash and rewrite commit message; set busy flag on resume; drop bulk-in check; drop unnecessary usb_kill_urb() ]
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
Plugin Details
Severity: Medium
ID: 296888
File Name: unity_linux_UTSA-2026-005110.nasl
Version: 1.1
Type: local
Published: 1/27/2026
Updated: 1/27/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
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-2024-42244
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/UOS-Server/release, Host/UOS-Server/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 1/28/2026
Vulnerability Publication Date: 8/7/2024
Reference Information
CVE: CVE-2024-42244