Deserialization of Untrusted Data Affecting torvalds/linux package, versions [6.9,6.12.114)[6.13,6.17.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20700627
- published10 Oct 2026
- disclosed12 Nov 2025
- creditUnknown
Introduced: 12 Nov 2025
CVE-2025-40130 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.12.114, 6.17.3 or higher.
Overview
Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the handling of CPU latency PM QoS requests due to insufficient synchronization in the cpu_latency_qos_add, cpu_latency_qos_remove_request, and cpu_latency_qos_update_request functions. An attacker can cause data races and potential use-after-free conditions by triggering concurrent access to PM QoS resources.
Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst
Details
Serialization is a process of converting an object into a sequence of bytes which can be persisted to a disk or database or can be sent through streams. The reverse process of creating object from sequence of bytes is called deserialization. Serialization is commonly used for communication (sharing objects between multiple hosts) and persistence (store the object state in a file or a database). It is an integral part of popular protocols like Remote Method Invocation (RMI), Java Management Extension (JMX), Java Messaging System (JMS), Action Message Format (AMF), Java Server Faces (JSF) ViewState, etc.
Deserialization of untrusted data (CWE-502) is when the application deserializes untrusted data without sufficiently verifying that the resulting data will be valid, thus allowing the attacker to control the state or the flow of the execution.