Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix errant WARNONONCE in j1939SESSIONdeactivate The statement “j1939SESSIONdeactivate should be called with a session ref-count of at least 2” is incorrect. In some concurrent scenarios, j1939SESSIONdeactivate can be...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989362)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989362 advisory. In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix errant WARNONONCE in j1939sessiondeactivate The conclusion j1939sessiondeactivate...

EUVD-2021-34674

Malicious code in bioql PyPI...

CVE-2021-4454 can: j1939: fix errant WARN_ON_ONCE in j1939_session_deactivate

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

CVE-2021-4454 affects the Linux kernel CAN/J1939 subsystem. In concurrent paths, j1939_session_deactivate() can be invoked with a session ref-count