Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2025-40194— cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()

EPSS 0.06% · P18
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2025-40194

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() The cpufreq_cpu_put() call in update_qos_request() takes place too early because the latter subsequently calls freq_qos_update_request() that indirectly accesses the policy object in question through the QoS request object passed to it. Fortunately, update_qos_request() is called under intel_pstate_driver_lock, so this issue does not matter for changing the intel_pstate operation mode, but it theoretically can cause a crash to occur on CPU device hot removal (which currently can only happen in virt, but it is formally supported nevertheless). Address this issue by modifying update_qos_request() to drop the reference to the policy later.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于对象生命周期管理不当，可能导致CPU热移除崩溃。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux da5c504c7aae96db68c4b38e2564a88e91842d89 ~ 15ac9579ebdaf22a37d7f60b3a8efc1029732ef9 -
LinuxLinux 5.4 -

II. Public POCs for CVE-2025-40194

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-40194

请登录查看更多情报信息。

Same Patch Batch · Linux · 2025-11-12 · 96 CVEs total

CVE-2025-40175idpf: cleanup remaining SKBs in PTP flows
CVE-2025-40170net: use dst_dev_rcu() in sk_setup_caps()
CVE-2025-40171nvmet-fc: move lsop put work to nvmet_fc_ls_req_op
CVE-2025-40167ext4: detect invalid INLINE_DATA + EXTENTS flag combination
CVE-2025-40164usbnet: Fix using smp_processor_id() in preemptible code warnings
CVE-2025-40162ASoC: amd/sdw_utils: avoid NULL deref when devm_kasprintf() fails
CVE-2025-40163sched/deadline: Stop dl_server before CPU goes offline
CVE-2025-40161mailbox: zynqmp-ipi: Fix SGI cleanup on unbind
CVE-2025-40166drm/xe/guc: Check GuC running state before deregistering exec queue
CVE-2025-40174x86/mm: Fix SMP ordering in switch_mm_irqs_off()
CVE-2025-40172accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages()
CVE-2025-40176tls: wait for pending async decryptions if tls_strp_msg_hold fails
CVE-2025-40173net/ip6_tunnel: Prevent perpetual tunnel growth
CVE-2025-40177accel/qaic: Fix bootlog initialization ordering
CVE-2025-40178pid: Add a judgment for ns null in pid_nr_ns
CVE-2025-40179ext4: verify orphan file size is not too big
CVE-2025-40180mailbox: zynqmp-ipi: Fix out-of-bounds access in mailbox cleanup loop
CVE-2025-40181x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP
CVE-2025-40183bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6}
CVE-2025-40182crypto: skcipher - Fix reqsize handling

Showing top 20 of 96 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-40194

No comments yet

Leave a comment