{
  "cveId": "CVE-2026-98930",
  "url": "https://patchblox.com/security/cve/CVE-2026-98930",
  "summary": "CVE-2026-98930 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-98930, released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "KVM: s390: Fix IRQ injection with SIGP Stop and Store Status",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  KVM: s390: Fix IRQ injection with SIGP Stop and Store Status  When __inject_sigp_stop() is called for a Stop and Store Status operation, if the vCPU is running, the interrupt is marked as pending and the status is stored by the thread performing the KVM_RUN IOCTL.  If the vCPU is already stopped, the status is stored immediately.  Storing the status means writing into userspace, which might fault, and __inject_sigp_stop() is called from do_inject_vcpu() which in turn is always called holding a spinlock, which is obviously an issue.  Fix this by returning -EWOULDBLOCK from __inject_sigp_stop(), and adding a bool flag to indicate whether a store status is needed. The callers of do_inject_vcpu() are modified to pass the pointer to the bool flag; whenever a Store Status operation is needed, the callers can now perform it outside the spinlock.  Opportunistically refactor kvm_s390_set_irq_state() to use scoped_guard() and __free().  [ Added Fixes tag while picking -- Claudio ]",
  "published": "2026-10-23T13:17:13Z",
  "severity": "Moderate",
  "cvss": 4.4,
  "epss": 0.00189,
  "epssPercentile": 0.08609,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98930",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.113-1",
      "fix": "DEBIAN-CVE-2026-98930",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98930",
      "released": "2026-10-24T13:25:57Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.9-1",
      "fix": "DEBIAN-CVE-2026-98930",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98930",
      "released": "2026-10-24T13:25:57Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}