CVE-2025-68177
BaseFortify
Publication date: 2025-12-16
Last updated on: 2025-12-18
Assigner: kernel.org
Description
Description
CVSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability occurs in the Linux kernel's cpufreq/longhaul component where the function longhaul_exit() calls cpufreq_cpu_get(0) without checking if the policy pointer is NULL. On some systems, this can cause a NULL pointer dereference, leading to a kernel warning or panic. The issue is fixed by adding a check to return early if the policy is NULL.
How can this vulnerability impact me? :
If triggered, this vulnerability can cause a kernel warning or panic due to a NULL pointer dereference. This can lead to system instability or crashes, potentially causing downtime or loss of service.
What immediate steps should I take to mitigate this vulnerability?
Apply the patch that adds a NULL check in longhaul_exit() to prevent the NULL dereference. This involves updating the Linux kernel to the fixed version that includes this patch.