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CVE-2026-90310 xen/xenbus: check otherend_id only after it has been initialized

🗓️ 17 Sep 2026 16:08:31Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 10 Views

Linux kernel xen/xenbus race on otherend_id before init causes deadlock.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-90310
17 Sep 202616:08
cve
debiancve
Debian CVE
CVE-2026-90310
17 Sep 202616:08
debiancve
euvd
EUVD
EUVD-2026-81971
17 Sep 202616:08
euvd
nvd
NVD
CVE-2026-90310
17 Sep 202617:17
nvd
osv
OSV
DEBIAN-CVE-2026-90310
17 Sep 202617:17
osv
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/xen/xenbus/xenbus_probe.c"
    ],
    "versions": [
      {
        "version": "e2dcf9065536ab4a1b00828ff0d19f7d282dfecc",
        "lessThan": "36fb592af353c55832e2cafe3fcfc3291be05f19",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e2dcf9065536ab4a1b00828ff0d19f7d282dfecc",
        "lessThan": "c76cbf348c7df077f93fa99a1225a527ce64cfa1",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/xen/xenbus/xenbus_probe.c"
    ],
    "versions": [
      {
        "version": "7.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "7.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.6",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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