IT

Tracker / CVE-2026-23362

CVE-2026-23362

Medium 5.5

In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix locking for bcm_op runtime updates Commit c2aba69d0c36 ("can: bcm: add locking for bcm_op runtime updates") added a locking for some variables that can be modified at runtime when updating the sending bcm_op with a new TX_SETUP command in bcm_tx_setup(). Usually the RX_SETUP only handles and filters incoming traffic with one exception: When the RX_RTR_FRAME flag is set a predefined CAN frame is sent when a specific RTR frame is received. Therefore the rx bcm_op uses bcm_can_tx() which uses the bcm_tx_lock that was only initialized in bcm_tx_setup(). Add the missing spin_lock_init() when allocating the bcm_op in bcm_rx_setup() to handle the RTR case properly.

Affected products and versions

linux linux_kernel
linux linux_kernel · 5.10.238 → 5.10.253
linux linux_kernel · 5.15.185 → 5.15.203
linux linux_kernel · 5.4.294 → 5.5
linux linux_kernel · 6.1.141 → 6.1.167
linux linux_kernel · 6.12.31 → 6.12.77
linux linux_kernel · 6.14.9 → 6.15
linux linux_kernel · 6.15.1 → 6.18.17
linux linux_kernel · 6.19 → 6.19.7
linux linux_kernel · 6.6.93 → 6.6.130

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References