CVE-2026-45867
Description
A flaw was found in the Linux kernel, specifically within the power supply subsystem. This vulnerability, a use-after-free, occurs due to a race condition during the removal or initialization of a power supply device. An interrupt can fire after the associated memory for a power supply handle has been released, or before it has been properly set up. This can lead to the system attempting to access invalid memory, which typically results in a system crash, causing a denial of service (DoS). In some scenarios, this memory corruption could potentially be leveraged by a local attacker to achieve further impact.
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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