Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: can: bcm: fixed the race condition involving lockless operations on bo-bound and bo-ifindex, as well as the silent failure during RXSETUP. The bcmsendmsg function reads the values of bo-ifindex and checks bo-bound before...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: - In can:bcm, the frame length is validated in bcmrxsetup for RTR replies. - In bcmtxsetup, the value of cf-len is checked against the DLC limits of CAN/CAN FD before framing the data for TXSETUP. However, bcmrxsetup never...

ROS-20261006-73-0003

The vulnerability of the bcmrxsetup function in the net/can/bcm.c module of the Linux kernel’s CAN subsystem is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to cause a service failure...

SUSE CVE-2026-72114

In the Linux kernel, the following vulnerability has been resolved: can: bcm: validate frame length in bcmrxsetup for RTR replies bcmtxsetup validates cf-len against the CAN/CAN FD DLC limits before installing frames for TXSETUP, but bcmrxsetup never did the same for the RTR-reply frame configure...

Linux kernel CAN Bus DoS

The vulnerability in the bcmrxsetup function within the net/can/bcm.c module of the Linux kernel’s CAN bus subsystem is related to synchronization errors when using a shared resource. Exploitation of this vulnerability may allow an attacker to cause a denial of service...

CVE-2026-72121: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: can: bcm: add locking when updating filter and timer values KCSAN detected a simultaneous access to timer values that can be overwritten in bcmrxsetup when updating timer and filter content while bcmrxhandler, bcmrxtimeouthandler...

CVE-2026-72121: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: can: bcm: add locking when updating filter and timer values KCSAN detected a simultaneous access to timer values that can be overwritten in bcmrxsetup when updating timer and filter content while bcmrxhandler, bcmrxtimeouthandler...

CVE-2026-72114: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: can: bcm: validate frame length in bcmrxsetup for RTR replies bcmtxsetup validates cf-len against the CAN/CAN FD DLC limits before installing frames for TXSETUP, but bcmrxsetup never did the same for the RTR-reply frame configure...

CVE-2026-72114: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: can: bcm: validate frame length in bcmrxsetup for RTR replies bcmtxsetup validates cf-len against the CAN/CAN FD DLC limits before installing frames for TXSETUP, but bcmrxsetup never did the same for the RTR-reply frame configure...

CVE-2026-72122: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix lockless bound/ifindex race and silent RXSETUP failure bcmsendmsg reads bo-ifindex and checks bo-bound before taking locksock, while bcmnotify, bcmconnect and bcmrelease all mutate both fields under that same lock...

CVE-2026-23362

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. When the RXRTRFRAME flag is set and a specific Remote Transmission Request RTR frame is received, the bcmtxlock was not properly initialized in the bcmrxsetup function. This missing initialization of...

CVE-2026-23362 can: bcm: fix locking for bcm_op runtime updates

In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix locking for bcmop runtime updates Commit c2aba69d0c36 "can: bcm: add locking for bcmop runtime updates" added a locking for some variables that can be modified at runtime when updating the sending bcmop with a new...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the lack of spinlock initialization in the bcmrxsetup module. This vulnerability may lead to...

CVE-2026-23362: Improper Locking

In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix locking for bcmop runtime updates Commit c2aba69d0c36 "can: bcm: add locking for bcmop runtime updates" added a locking for some variables that can be modified at runtime when updating the sending bcmop with a new...