{
  "cveId": "CVE-2026-80651",
  "url": "https://patchblox.com/security/cve/CVE-2026-80651",
  "summary": "CVE-2026-80651 is fixed in linux on 1 platform by DEBIAN-CVE-2026-80651 (version 7.1.5-1), released August 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  crypto: ccp/sev-dev-tsm - bail out early when pd...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  crypto: ccp/sev-dev-tsm - bail out early when pdev-\u003Ebus is NULL  dsm_create() initially checks pdev-\u003Ebus when computing segment_id:  \tu8 segment_id = pdev-\u003Ebus ? pci_domain_nr(pdev-\u003Ebus) : 0;  But the next two lines unconditionally dereference pdev-\u003Ebus via pcie_find_root_port() and especially pci_dev_id(pdev), which expands to PCI_DEVID(dev-\u003Ebus-\u003Enumber, dev-\u003Edevfn). If pdev-\u003Ebus is in fact NULL, segment_id is initialised to 0 but the very next statement crashes the kernel.  smatch flags this:    drivers/crypto/ccp/sev-dev-tsm.c:253 dsm_create() error: we     previously assumed \u0027pdev-\u003Ebus\u0027 could be null (see line 251)  Make the NULL handling consistent: if pdev-\u003Ebus is NULL the device has no PCI context to work with and SEV TIO setup cannot proceed, so return -ENODEV before any of the bus-dependent lookups. The remaining initialisation now runs only on the path where pdev-\u003Ebus is known to be valid.  No change for callers where pdev-\u003Ebus is non-NULL, which is the only case where dsm_create() did meaningful work before this change.",
  "published": "2026-08-28T08:16:50Z",
  "severity": "",
  "epss": 0.00198,
  "epssPercentile": 0.09571,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.5-1",
      "fix": "DEBIAN-CVE-2026-80651",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80651",
      "released": "2026-08-29T00:46:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}