CVE-2026-23357

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel’s mcp251x open() function related to a potential deadlock situation. Specifically, the function calls free irq() while holding the mpc lock mutex. If an interrupt occurs during this process, the interrupt handler may wait for the mpc lock, leading to a deadlock. This issue is similar to a previously resolved deadlock but occurs in the error path of the function. The resolution involves moving the free irq() call after releasing the lock and setting priv->force quit = 1 to ensure the interrupt handler exits promptly upon acquiring the lock.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.