CVE-2026-64088
Description
A flaw was found in the Linux kernel's batman-adv component. An integer overflow vulnerability exists where the 'tt_buff_len' variable, intended to be a positive length, can become a negative value. This occurs when a large value is assigned, causing it to wrap around. This incorrect negative value can lead to the allocation of a buffer that is not fully initialized, potentially resulting in information disclosure to an attacker.
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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