runc v1.5.1

{
  "id": "677f7a0ca7ccaef0eae0ffece2a5081d72514ea46e590ec00fbeed080b57204b",
  "url": "https://github.com/opencontainers/runc/releases/tag/v1.5.1",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "runc v1.5.1",
    "summary": "runc v1.5.1 fixes a regression affecting tmpfs mounts on Ubuntu Focal and improves handling of a seccomp error when libseccomp build and runtime versions differ.",
    "evidence": "This is the first patch release in the 1.5.z release series of runc",
    "products": [
      {
        "name": {
          "value": "runc",
          "evidence": "Release notes from runc"
        },
        "prerequisites": [
          {
            "value": "On Ubuntu Focal (20.04), attempts to mount tmpfs with the nr_inodes=1 option will fail due to a downstream kernel patch (ironically originating from AUFS).",
            "evidence": "On Ubuntu Focal (20.04), attempts to mount tmpfs with the nr_inodes=1 option will fail due to a downstream kernel patch (ironically originating from AUFS)."
          },
          {
            "value": "This appears to only happen if you compile runc with libseccomp >= 2.6.0 and then run it with an < 2.6.0 libseccomp.",
            "evidence": "This appears to only happen if you compile runc with libseccomp >= 2.6.0 and then run it with an < 2.6.0 libseccomp."
          }
        ],
        "fixed_versions": [
          {
            "value": "v1.5.1",
            "evidence": "runc v1.5.1"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "github-opencontainers-runc",
  "document_id": 22007,
  "published_at": "2026-07-14T01:36:25+00:00"
}