CVE-2026-68128
Description
A flaw was found in the Linux kernel's ice driver. A malicious virtual function (VF) can provide an out-of-range 'ptype' value through the VIRTCHNL interface. This can lead to a write past the end of an allocated memory region, causing a kernel page fault and resulting in a Denial of Service (DoS).
Mitigation
If Intel Ethernet 800 Series Network Adapters are not in use, the `ice` kernel module can be blacklisted to prevent it from loading. Create a file `/etc/modprobe.d/blacklist-ice.conf` with the content `blacklist ice`. After saving the file, regenerate the initramfs using `dracut -f -v` and reboot the system for the changes to take effect. This action may disrupt network connectivity if the `ice` driver is required for active network interfaces.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7 | N/A | 8.8 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | High | N/A | Low |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Changed |
| Confidentiality | High | N/A | High |
| Integrity Impact | High | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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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