Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-989711)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989711 advisory. In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix errant WARNONONCE in j1939sessiondeactivate The conclusion j1939sessiondeactivate...

SUSE CVE-2021-4454

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix errant WARNONONCE in j1939sessiondeactivate The conclusion "j1939sessiondeactivate should be called with a session ref-count of at least 2" is incorrect. In some concurrent scenarios, j1939sessiondeactivate can be...

UBUNTU-CVE-2021-4454

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix errant WARNONONCE in j1939sessiondeactivate The conclusion "j1939sessiondeactivate should be called with a session ref-count of at least 2" is incorrect. In some concurrent scenarios, j1939sessiondeactivate can be...

CVE-2021-4454

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix errant WARNONONCE in j1939sessiondeactivate The conclusion "j1939sessiondeactivate should be called with a session ref-count of at least 2" is incorrect. In some concurrent scenarios, j1939sessiondeactivate can be...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from an incorrect WARNONONCE check in j1939sessiondeactivate...

PT-2025-13279

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.14.0-rc7+ Description A vulnerability in the Linux kernel has been resolved, related to the j1939 session deactivate function. The issue arises from an incorrect conclusion that j1939 session deactivate should ...