Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fixed Use-after-Free, failed to increment the ref count of the skb while it was in use. This patch addresses a Use-after-Free issue identified by the syzbot. The problem arises when a skb is taken from the per-session...

SUSE CVE-2026-80707

In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939sessionfreshnew: initialize receive buffer Zero the allocated buffer in j1939sessionfreshnew to ensure it contains no residual data. While there is a potential performance impact if users allocate...

CVE-2026-80707

In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939sessionfreshnew: initialize receive buffer Zero the allocated buffer in j1939sessionfreshnew to ensure it contains no residual data. While there is a potential performance impact if users allocate...

UBUNTU-CVE-2026-80707

In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939sessionfreshnew: initialize receive buffer Zero the allocated buffer in j1939sessionfreshnew to ensure it contains no residual data. While there is a potential performance impact if users allocate...

CVE-2026-80707

In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939sessionfreshnew: initialize receive buffer Zero the allocated buffer in j1939sessionfreshnew to ensure it contains no residual data. While there is a potential performance impact if users allocate...

CVE-2026-80707

CVE-2026-80707 affects the Linux kernel's CAN J1939 transport subsystem. The function j1939_session_fresh_new() allocates a receive buffer without zeroing it, leaving residual data from prior allocations that could be exposed to a session participant. The root cause is an uninitialized memory dis...

EUVD-2026-67442

In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939sessionfreshnew: initialize receive buffer Zero the allocated buffer in j1939sessionfreshnew to ensure it contains no residual data. While there is a potential performance impact if users allocate...

CVE-2026-80707 can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer

In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939sessionfreshnew: initialize receive buffer Zero the allocated buffer in j1939sessionfreshnew to ensure it contains no residual data. While there is a potential performance impact if users allocate...

CVE-2026-80707 can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer

In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939sessionfreshnew: initialize receive buffer Zero the allocated buffer in j1939sessionfreshnew to ensure it contains no residual data. While there is a potential performance impact if users allocate...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005004)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005004 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-2026-22997

In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: j1939xtprxrtssessionactive: deactivate session upon receiving the second rts Since j1939sessiondeactivateactivatenext in j1939tprxtimer is called only when the timer is enabled, we need to call...

AZL-77316 CVE-2026-22997 affecting package kernel for versions less than 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: j1939xtprxrtssessionactive: deactivate session upon receiving the second rts Since j1939sessiondeactivateactivatenext in j1939tprxtimer is called only when the timer is enabled, we need to call...

CVE-2026-22997 net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts

In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: j1939xtprxrtssessionactive: deactivate session upon receiving the second rts Since j1939sessiondeactivateactivatenext in j1939tprxtimer is called only when the timer is enabled, we need to call...

PT-2025-55063

Уязвимость функции j1939 session activate модуля net/can/j1939/transport.c поддержки сокетов j1939 шины CAN ядра операционной системы Linux связана с ошибками управления состоянием. Эксплуатация уязвимости может позволить нарушителю, действующему удалённо, оказать воздействие на конфиденциальност...

ALSA-2025:22854 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: cifs: Fix oops due to uninitialised variable CVE-2025-38737 kernel: can: j1939: implement NETDEVUNREGISTER notification handler CVE-2025-39925 kernel: Bluetooth: hcievent: Fix UAF in...

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...

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...

CVE-2022-49845: Use of Uninitialized Resource

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...

CVE-2021-4454: Undefined Security Weakness

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...