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

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未检查policy指针是否为NULL，可能导致空指针取消引用。

AI Predicted 5.0 Difficulty: Trivial EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1001 · Data Obfuscation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2< b02352dd2e6cca98777714cc2a27553191df70db affected
b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2< 956b56d17a89775e4957bbddefa45cd3c6c71000 affected
b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2< 55cf586b9556863e3c2a45460aba71bcb2be5bcd affected
b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2< fd93e1d71b3b14443092919be12b1abf08de35eb affected
b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2< 8d6791c480f22d6e9a566eaa77336d3d37c5c591 affected
b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2< 64adabb6d9d51b7e7c02fe733346a2c4dd738488 affected
b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2< 809cf2a7794ca4c14c304b349f4c3ae220701ce4 affected
b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2< 592532a77b736b5153e0c2e4c74aa50af0a352ab affected
… +10 more rows
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I. Basic Information for CVE-2025-68177

Vulnerability Information
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Vulnerability Title
cpufreq/longhaul: handle NULL policy in longhaul_exit
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未检查policy指针是否为NULL，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 ~ b02352dd2e6cca98777714cc2a27553191df70db -
Linux Linux 3.10 -

II. Public POCs for CVE-2025-68177

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III. Intelligence Information for CVE-2025-68177

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Other References for CVE-2025-68177 (8)

Same Patch Batch · Linux · 2025-12-16 · 156 CVEs total

CVE-2025-68263 9.8 CRITICAL ksmbd: ipc: fix use-after-free in ipc_msg_send_request
CVE-2025-68284 9.8 CRITICAL libceph: prevent potential out-of-bounds writes in handle_auth_session_key()
CVE-2025-68315 9.8 CRITICAL f2fs: fix to detect potential corrupted nid in free_nid_list
CVE-2025-68192 9.8 CRITICAL net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup
CVE-2025-68301 9.8 CRITICAL net: atlantic: fix fragment overflow handling in RX path
CVE-2025-68285 9.8 CRITICAL libceph: fix potential use-after-free in have_mon_and_osd_map()
CVE-2025-40350 9.8 CRITICAL net/mlx5e: RX, Fix generating skb from non-linear xdp_buff for striding RQ
CVE-2025-68256 8.8 HIGH staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser
CVE-2025-68304 8.8 HIGH Bluetooth: hci_core: lookup hci_conn on RX path on protocol side
CVE-2025-68255 8.8 HIGH staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing
CVE-2025-68314 8.8 HIGH drm/msm: make sure last_fence is always updated
CVE-2025-68226 8.8 HIGH smb: client: fix incomplete backport in cfids_invalidation_worker()
CVE-2025-40362 8.8 HIGH ceph: fix multifs mds auth caps issue
CVE-2025-68250 8.2 HIGH hung_task: fix warnings caused by unaligned lock pointers
CVE-2025-68207 7.8 HIGH drm/xe/guc: Synchronize Dead CT worker with unbind
CVE-2025-68208 7.8 HIGH bpf: account for current allocated stack depth in widen_imprecise_scalars()
CVE-2025-68179 7.8 HIGH s390: Disable ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
CVE-2025-68183 7.8 HIGH ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr
CVE-2025-68181 7.8 HIGH drm/radeon: Remove calls to drm_put_dev()
CVE-2025-68265 7.8 HIGH nvme: fix admin request_queue lifetime

Showing top 20 of 156 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68177

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