Not yet scoredPublished Nov 12, 2025

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

Updated under an hour ago (Oct 27, 2026, 10:23 AM ET)

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from da5c504c7aae96db68c4b38e2564a88e91842d89 before 15ac9579ebdaf22a37d7f60b3a8efc1029732ef9; from da5c504c7aae96db68c4b38e2564a88e91842d89 before bc26564bcc659beb6d977cd6eb394041ec2f2851; from da5c504c7aae96db68c4b38e2564a88e91842d89 before ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4; from da5c504c7aae96db68c4b38e2564a88e91842d89 before 0a58d3e77b22b087a57831c87cafd360e144a5bd; from da5c504c7aae96db68c4b38e2564a88e91842d89 before 69a18ff6c60e8e113420f15355fad862cb45d38e; from da5c504c7aae96db68c4b38e2564a88e91842d89 before ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3; from da5c504c7aae96db68c4b38e2564a88e91842d89 before 57e4a6aadf12578b96a038373cffd54b3a58b092; from da5c504c7aae96db68c4b38e2564a88e91842d89 before 69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467	CNA record

References

References

https://git.kernel.org/stable/c/15ac9579ebdaf22a37d7f60b3a8efc1029732ef9
https://git.kernel.org/stable/c/bc26564bcc659beb6d977cd6eb394041ec2f2851
https://git.kernel.org/stable/c/ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4
https://git.kernel.org/stable/c/0a58d3e77b22b087a57831c87cafd360e144a5bd
https://git.kernel.org/stable/c/69a18ff6c60e8e113420f15355fad862cb45d38e
https://git.kernel.org/stable/c/ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3
https://git.kernel.org/stable/c/57e4a6aadf12578b96a038373cffd54b3a58b092
https://git.kernel.org/stable/c/69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.