CVE-2026-45879
Description
A flaw was found in the Linux kernel's bq25980 power supply driver. A race condition during interrupt handling can lead to a use-after-free vulnerability, where the system attempts to access memory that has already been released. This can be triggered when an interrupt fires after the power supply handle is freed but before the interrupt handler is unregistered. Successful exploitation of this flaw can cause a system crash, resulting in a Denial of Service (DoS), or lead to silent memory corruption.
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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