Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987020)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987020 advisory. In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939netdevstart: fix UAF for rxkref of j1939priv It will trigger UAF for rxkref of...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986970)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986970 advisory. In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix Use-after-Free, hold skb ref while in use This patch fixes a Use-after-Free found...

SUSE CVE-2025-39925

In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEVUNREGISTER notification handler syzbot is reporting unregisternetdevice: waiting for vcan0 to become free. Usage count = 2 problem, for j1939 protocol did not have NETDEVUNREGISTER notification handler...

UBUNTU-CVE-2025-39925

In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEVUNREGISTER notification handler syzbot is reporting unregisternetdevice: waiting for vcan0 to become free. Usage count = 2 problem, for j1939 protocol did not have NETDEVUNREGISTER notification handler...

CVE-2025-39925

CVE-2025-39925 affects the Linux kernel’s CAN J1939 implementation. The issue stems from the j1939 protocol not having a NETDEV_UNREGISTER notification handler, which meant that when a NETDEV_UNREGISTER event fires, the extra ref held by j1939_sk_bind() could prevent the net_device usage count fr...

CVE-2025-39925 can: j1939: implement NETDEV_UNREGISTER notification handler

In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEVUNREGISTER notification handler syzbot is reporting unregisternetdevice: waiting for vcan0 to become free. Usage count = 2 problem, for j1939 protocol did not have NETDEVUNREGISTER notification handler...

CVE-2025-39925

In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEVUNREGISTER notification handler syzbot is reporting unregisternetdevice: waiting for vcan0 to become free. Usage count = 2 problem, for j1939 protocol did not have NETDEVUNREGISTER notification handler...

CVE-2025-39925 can: j1939: implement NETDEV_UNREGISTER notification handler

In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEVUNREGISTER notification handler syzbot is reporting unregisternetdevice: waiting for vcan0 to become free. Usage count = 2 problem, for j1939 protocol did not have NETDEVUNREGISTER notification handler...

PT-2025-40099

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel has an issue where the j1939 protocol lacked a NETDEV UNREGISTER notification handler, leading to problems when unregistering network devices. Specifically, the j1939 sk...

Linux Distros Unpatched Vulnerability : CVE-2023-52887

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: enhanced error handling for tightly received RTS messages in...

SUSE CVE-2022-49845

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sendone: fix missing CAN header initialization The read access to struct canxlframe::len inside of a j1939 created skbuff revealed a missing initialization of reserved and later filled elements in struct canframe...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue performs an additional skbget for each new skb, doing the same for the initial instance in j1939sessionnew will prevent refcount underflow. mkl:...

OESA-2025-1078 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: enhanced error handling for tightly received RTS messages in xtprxrtssessionnew This patch enhances error handling in scenarios with RTS Request...

PT-2026-5508

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to the J1939 protocol. Specifically, the j1939 session activate function may succeed even after the network device has been unregistered via j19...

UBUNTU-CVE-2024-56645

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an extra skbget for each new skb, do the same for the initial one in j1939sessionnew to avoid refcount underflow. mkl: clean up commit messag...

net: can: j1939: Initialize unused data in j1939_send_one()

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kernel: can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939netdevstart: fix UAF for rxkref of j1939priv It will trigger UAF for rxkref of j1939priv as following. cpu0 cpu1 j1939skbindsocket0, ndev0, ... j1939netdevstart j1939skbindsocket1, ndev0, ... j1939netdevstart...

kernel: can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939netdevstart: fix UAF for rxkref of j1939priv It will trigger UAF for rxkref of j1939priv as following. cpu0 cpu1 j1939skbindsocket0, ndev0, ... j1939netdevstart j1939skbindsocket1, ndev0, ... j1939netdevstart...

kernel: can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939netdevstart: fix UAF for rxkref of j1939priv It will trigger UAF for rxkref of j1939priv as following. cpu0 cpu1 j1939skbindsocket0, ndev0, ... j1939netdevstart j1939skbindsocket1, ndev0, ... j1939netdevstart...

SUSE CVE-2021-47459

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939netdevstart: fix UAF for rxkref of j1939priv It will trigger UAF for rxkref of j1939priv as following. cpu0 cpu1 j1939skbindsocket0, ndev0, ... j1939netdevstart j1939skbindsocket1, ndev0, ... j1939netdevstart...