CVE-2026-64074
Description
A flaw was found in the Linux kernel. This vulnerability, located in the statmount_mnt_idmap function, involves an out-of-bounds write. When processing mount ID mappings, an internal buffer can be incorrectly accessed due to an unchecked overflow, leading to a single-byte overwrite. This memory corruption can cause system instability or a denial of service.
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
Frequently Asked Questions
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