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
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 92c58965e9656dc6e682a8ffe520fac0fb256d13 , < 3ee59c38ae7369ad1f7b846e05633ccf0d159fab (git)
Affected: 92c58965e9656dc6e682a8ffe520fac0fb256d13 , < fd627ac8a5cff4d45269f164b13ddddc0726f2cc (git)
Affected: 92c58965e9656dc6e682a8ffe520fac0fb256d13 , < 061c553c66bc1638c280739999224c8000fd4602 (git)
Affected: 92c58965e9656dc6e682a8ffe520fac0fb256d13 , < 5a53249d149f48b558368c5338b9921b76a12f8c (git)
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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)
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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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