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CVE-2025-38469 (GCVE-0-2025-38469)

Vulnerability from cvelistv5 – Published: 2025-07-28 11:21 – Updated: 2026-05-11 21:28
VLAI
Title
KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls kvm_xen_schedop_poll does a kmalloc_array() when a VM polls the host for more than one event channel potr (nr_ports > 1). After the kmalloc_array(), the error paths need to go through the "out" label, but the call to kvm_read_guest_virt() does not. [Adjusted commit message. - Paolo]
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 92c58965e9656dc6e682a8ffe520fac0fb256d13 , < 3ee59c38ae7369ad1f7b846e05633ccf0d159fab (git)
Affected: 92c58965e9656dc6e682a8ffe520fac0fb256d13 , < fd627ac8a5cff4d45269f164b13ddddc0726f2cc (git)
Affected: 92c58965e9656dc6e682a8ffe520fac0fb256d13 , < 061c553c66bc1638c280739999224c8000fd4602 (git)
Affected: 92c58965e9656dc6e682a8ffe520fac0fb256d13 , < 5a53249d149f48b558368c5338b9921b76a12f8c (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.100 , ≤ 6.6.* (semver)
Unaffected: 6.12.40 , ≤ 6.12.* (semver)
Unaffected: 6.15.8 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:23:34+00:00",
      "cve": "CVE-2025-38469",
      "id": "CVE-2025-38469",
      "initial_release_date": "2025-07-28T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38469.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-13T23:39:27Z",
      "cve": "CVE-2025-38469",
      "id": "CVE-2025-38469",
      "initial_release_date": "2025-07-28T23:22:58Z",
      "product_status:first_fixed": "67",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "529",
      "product_status:recommended": "252",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38469",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38469.json",
      "version": "20"
    }
  }
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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