soc: xilinx: Fix race condition in event registration

{
  "id": "16de44620252404cabb80280dcbbe541f8096e84c34affe4a2cb964f1258dcfe",
  "url": "https://osv.dev/vulnerability/CVE-2026-80655",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "soc: xilinx: Fix race condition in event registration",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: soc: xilinx: Fix race condition in event registration The zynqmp_power driver registers handlers for suspend and subsystem restart events using register_event(). However, the work structures (zynqmp_pm_init_suspend_work and zynqmp_pm_init_restart_work) used by these handlers were allocated and initialized after the registration call. This created a race window where, if the firmware triggered an event immediately after registration but before allocation, the callback (suspend_event_callback or subsystem_restart_event_callback) would dereference a NULL pointer in work_pending(), leading to a crash. Fix this by allocating and initializing the work structures before registering the events.",
    "evidence": "osv:CVE-2026-80655",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.114",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.57",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-80655",
      "aliases": [
        "CVE-2026-80655"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fcf544ac64397776a18246eba5a8ca72a47c4405"
                },
                {
                  "fixed": "07ea9081b8fefb99e2f427e0f0602a5e576cb120"
                },
                {
                  "fixed": "e124f7b170337563d78a7a6aa152c897d229bc39"
                },
                {
                  "fixed": "d349aa118ff5e4cab88424ce1b16e08edd70f8bb"
                },
                {
                  "fixed": "fb445935338405110baca8f541a2df3b4cb8d712"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80655.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.11.0"
                },
                {
                  "fixed": "6.12.114"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.57"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80655.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.053882787Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/07ea9081b8fefb99e2f427e0f0602a5e576cb120",
        "https://git.kernel.org/stable/c/d349aa118ff5e4cab88424ce1b16e08edd70f8bb",
        "https://git.kernel.org/stable/c/e124f7b170337563d78a7a6aa152c897d229bc39",
        "https://git.kernel.org/stable/c/fb445935338405110baca8f541a2df3b4cb8d712",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80655.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-80655",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80655.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-80655",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 507728,
  "published_at": "2026-08-28T06:49:01.988+00:00"
}