CVE-2026-31576
Description
A flaw was found in the Linux kernel's hackrf driver. A race condition exists where memory for the hackrf device is freed prematurely during device unregistration, even when file descriptors are still in use. This allows a local user to trigger a use-after-free and double-free vulnerability. Successful exploitation can lead to system instability, crashes, 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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