CVE-2026-46219
Description
A flaw was found in the Linux kernel's spi-mpc52xx driver. This vulnerability, a use-after-free, occurs because the state machine work, scheduled by the interrupt handler, is not properly cancelled after disabling interrupts during the unbind operation. This oversight can lead to memory corruption, potentially allowing an attacker to cause a denial of service or execute arbitrary code.
Understanding the Weakness (CWE)
Integrity,Confidentiality,Availability
Technical Impact: Modify Application Data; Modify Memory; DoS: Crash, Exit, or Restart; Execute Unauthorized Code or Commands
It may be possible to cause data corruption and possibly execute arbitrary code by modifying global variables or data structures at unexpected times, violating the assumptions of code that uses this global data.
Access Control
Technical Impact: Gain Privileges or Assume Identity
If a signal handler interrupts code that is executing with privileges, it may be possible that the signal handler will also be executed with elevated privileges, possibly making subsequent exploits more severe.
Frequently Asked Questions
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