CVE-2026-45916
Description
A flaw was found in the Linux kernel's sbs-battery power supply driver. A race condition exists where an interrupt can occur after the power_supply handle has been freed but before the interrupt handler is unregistered. This can lead to the interrupt handler attempting to use a freed power_supply handle, resulting in a system crash or silent memory corruption. A similar race condition during probe can also lead to using an uninitialized power_supply handle.
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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