CVE-2026-43221
Description
A flaw was found in the Linux kernel's Intelligent Platform Management Bus (IPMB) component. The IPMB event handler fails to initialize read bytes, which can lead to an uninitialized value being returned during an I2C (Inter-Integrated Circuit) read operation. This could allow a local attacker to obtain sensitive information from the system.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory; Read Application Data
When reusing a resource such as memory or a program variable, the original contents of that resource may not be cleared before it is sent to an untrusted party.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
The uninitialized resource may contain values that cause program flow to change in ways that the programmer did not intend.
Frequently Asked Questions
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