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Vulnerability · Published Dec 16, 2025 · Assigned by Linux

CVE-2025-68177cpufreq/longhaul: handle NULL policy in longhaul_exit

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 88.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.159-1DEBIAN-CVE-2025-68177
Debian:13linux6.12.63-1DEBIAN-CVE-2025-68177
Debian:14linux6.17.8-1DEBIAN-CVE-2025-68177
Ubuntu:22.04:LTSlinux5.15.0-173.183UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux6.8.0-106.106UBUNTU-CVE-2025-68177
Ubuntu:25.10linux6.17.0-14.14UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-aws5.15.0-1103.110UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-aws6.8.0-1050.53UBUNTU-CVE-2025-68177
Ubuntu:25.10linux-aws6.17.0-1007.7UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1007.7~24.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1050.53~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-azure5.15.0-1109.118UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-azure6.8.0-1051.57UBUNTU-CVE-2025-68177
Ubuntu:25.10linux-azure6.17.0-1008.8UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1109.118.1UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2025-68177
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-gcp5.15.0-1103.112UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-gcp6.8.0-1052.55UBUNTU-CVE-2025-68177
Ubuntu:25.10linux-gcp6.17.0-1007.7UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1008.8~24.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1052.55~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-gke5.15.0-1099.105UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-gke6.8.0-1048.53UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1086.94UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1035.38UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-106.106~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-ibm5.15.0-1097.100UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-ibm6.8.0-1049.49UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1049.49~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1098.104UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-kvm5.15.0-1095.100UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-173.183UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-106.106.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-106.106.1~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1098.99UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1049.52UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1008.8UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1049.52~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1049.52.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1055.55UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1044.44UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1011.11UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-oracle5.15.0-1100.106UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-oracle6.8.0-1047.48UBUNTU-CVE-2025-68177
Ubuntu:25.10linux-oracle6.17.0-1007.7UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1007.7~24.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1047.48~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-raspi5.15.0-1097.100UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-raspi6.8.0-1050.54UBUNTU-CVE-2025-68177
Ubuntu:25.10linux-raspi6.17.0-1008.8UBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-68177
Ubuntu:25.10linux-realtime6.17.0-1006.7UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-68177
Ubuntu:25.10linux-riscv6.17.0-14.14.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-106.106~22.04.1UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-68177
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1028.29UBUNTU-CVE-2025-68177
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1067.71UBUNTU-CVE-2025-68177

Affected products (as reported)

VendorProductVersions
Linux Linux b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 – before b02352dd2e6cca98777714cc2a27553191df70dbb43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 – before 956b56d17a89775e4957bbddefa45cd3c6c71000b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 – before 55cf586b9556863e3c2a45460aba71bcb2be5bcdb43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 – before fd93e1d71b3b14443092919be12b1abf08de35ebb43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 – before 8d6791c480f22d6e9a566eaa77336d3d37c5c591b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 – before 64adabb6d9d51b7e7c02fe733346a2c4dd738488b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 – before 809cf2a7794ca4c14c304b349f4c3ae220701ce4b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 – before 592532a77b736b5153e0c2e4c74aa50af0a352ab
Linux Linux 3.10

References