CVE-2025-68177 Details
Description
In the Linux kernel, the following vulnerability has been resolved: cpufreq/longhaul: handle NULL policy in longhaul_exit longhaul_exit() was calling cpufreq_cpu_get(0) without checking for a NULL policy pointer. On some systems, this could lead to a NULL dereference and a kernel warning or panic. This patch adds a check using unlikely() and returns early if the policy is NULL. Bugzilla: #219962
A vulnerability in the Linux kernel's cpufreq longhaul driver could lead to a NULL pointer dereference, causing a kernel warning or panic. This issue arises because the longhaul_exit function calls cpufreq_cpu_get(0) without verifying if the policy pointer is NULL. The vulnerability affects several versions of the Linux kernel.
Users can apply the latest patches available in the Linux kernel stable tree to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Dec 16, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/55cf586b9556863e3c2a45460aba71bcb2be5bcd | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/592532a77b736b5153e0c2e4c74aa50af0a352ab | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/64adabb6d9d51b7e7c02fe733346a2c4dd738488 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/809cf2a7794ca4c14c304b349f4c3ae220701ce4 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/8d6791c480f22d6e9a566eaa77336d3d37c5c591 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/956b56d17a89775e4957bbddefa45cd3c6c71000 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/b02352dd2e6cca98777714cc2a27553191df70db | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/fd93e1d71b3b14443092919be12b1abf08de35eb | kernel.org | Source CodeVendor |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Linux kernel | All versions |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Dec 16, 2025 | New CVE Received | kernel.org |