CVE-2026-46213
Description
A flaw was found in the Linux kernel's Apple keyboard driver (appletb-kbd). A Use-After-Free (UAF) vulnerability exists in the inactivity-timer cleanup path during driver tear-down. This can occur due to race conditions between device cleanup and timer operations, or late event callbacks re-arming the timer. A local attacker could potentially exploit this to cause memory corruption, leading to system instability or a denial of service.
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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