Vulnerability-Lookup

FKIE_CVE-2026-80932

Vulnerability from fkie_nvd - Published: 2026-09-11 20:18 - Updated: 2026-09-14 13:18

Severity

8.4 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: flush works in dependency order virtio_vsock_remove() stops the virtqueues and then flushes each work item before freeing the enclosing virtio_vsock. The current order does not account for dependencies between those items: tx_work may queue send_pkt_work, and send_pkt_work may queue rx_work. In particular, send_pkt_work can set restart_rx and release tx_lock. The remove path can then stop the queues and flush rx_work before send_pkt_work queues it. Although the later send_pkt_work flush waits for that producer to finish, nothing waits for the newly queued rx_work, so kfree(vsock) can race with it. KASAN reported: BUG: KASAN: slab-use-after-free in virtio_transport_rx_work+0x487/0x4b0 Read of size 8 at addr ffff888114c2b008 by task kworker/1:1/47 Workqueue: virtio_vsock virtio_transport_rx_work Call Trace: virtio_transport_rx_work+0x487/0x4b0 process_one_work+0x688/0x1120 worker_thread+0x45b/0xd10 Allocated by task 1: virtio_vsock_probe+0xef/0x6b0 Freed by task 84: kfree+0x131/0x3c0 virtio_vsock_remove+0xd1/0x100 Flush the works in producer-to-consumer order. virtio_vsock_vqs_del() has already disabled the queue callbacks and cleared the run flags, so after tx_work and send_pkt_work are drained, no source remains that can queue rx_work after its flush.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/165a330a68b5f299d8735f0194c314cb2e571269
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2187a56f2fd1715d54daed6392809223c60544f3
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/531e2ac2dab1ab90a16427c4f9c86663633e9487
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/728836ebca239810f164262b10211ef59182f811
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b9cb4e8ba71c9fbd935d66baa71bbb0b87192c94
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/da5e9f08714c19ba04e6863aca69d40f042f2e04
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e059a14c1067bcc4f7b1947cd09f2baab98e340f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f3313d952fc380cff53db9a28451a8807aa67b43

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/virtio_transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e059a14c1067bcc4f7b1947cd09f2baab98e340f",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "531e2ac2dab1ab90a16427c4f9c86663633e9487",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "f3313d952fc380cff53db9a28451a8807aa67b43",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "b9cb4e8ba71c9fbd935d66baa71bbb0b87192c94",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "2187a56f2fd1715d54daed6392809223c60544f3",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "165a330a68b5f299d8735f0194c314cb2e571269",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "da5e9f08714c19ba04e6863aca69d40f042f2e04",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "728836ebca239810f164262b10211ef59182f811",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/virtio_transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.8"
            },
            {
              "lessThan": "4.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: flush works in dependency order\n\nvirtio_vsock_remove() stops the virtqueues and then flushes each work\nitem before freeing the enclosing virtio_vsock.  The current order does\nnot account for dependencies between those items: tx_work may queue\nsend_pkt_work, and send_pkt_work may queue rx_work.\n\nIn particular, send_pkt_work can set restart_rx and release tx_lock.\nThe remove path can then stop the queues and flush rx_work before\nsend_pkt_work queues it.  Although the later send_pkt_work flush waits\nfor that producer to finish, nothing waits for the newly queued rx_work,\nso kfree(vsock) can race with it.\n\nKASAN reported:\n\n  BUG: KASAN: slab-use-after-free in\n  virtio_transport_rx_work+0x487/0x4b0\n  Read of size 8 at addr ffff888114c2b008 by task kworker/1:1/47\n  Workqueue: virtio_vsock virtio_transport_rx_work\n  Call Trace:\n   virtio_transport_rx_work+0x487/0x4b0\n   process_one_work+0x688/0x1120\n   worker_thread+0x45b/0xd10\n  Allocated by task 1:\n   virtio_vsock_probe+0xef/0x6b0\n  Freed by task 84:\n   kfree+0x131/0x3c0\n   virtio_vsock_remove+0xd1/0x100\n\nFlush the works in producer-to-consumer order.  virtio_vsock_vqs_del()\nhas already disabled the queue callbacks and cleared the run flags, so\nafter tx_work and send_pkt_work are drained, no source remains that can\nqueue rx_work after its flush."
    }
  ],
  "id": "CVE-2026-80932",
  "lastModified": "2026-09-14T13:18:49.483",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-11T20:18:57.023",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/165a330a68b5f299d8735f0194c314cb2e571269"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2187a56f2fd1715d54daed6392809223c60544f3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/531e2ac2dab1ab90a16427c4f9c86663633e9487"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/728836ebca239810f164262b10211ef59182f811"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b9cb4e8ba71c9fbd935d66baa71bbb0b87192c94"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/da5e9f08714c19ba04e6863aca69d40f042f2e04"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e059a14c1067bcc4f7b1947cd09f2baab98e340f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f3313d952fc380cff53db9a28451a8807aa67b43"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-80932 (GCVE-0-2026-80932)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:42 – Updated: 2026-09-14 11:58

Title

vsock/virtio: flush works in dependency order

Summary

Severity

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/e059a14c1067bcc4f…
https://git.kernel.org/stable/c/531e2ac2dab1ab90a…
https://git.kernel.org/stable/c/f3313d952fc380cff…
https://git.kernel.org/stable/c/b9cb4e8ba71c9fbd9…
https://git.kernel.org/stable/c/2187a56f2fd1715d5…
https://git.kernel.org/stable/c/165a330a68b5f299d…
https://git.kernel.org/stable/c/da5e9f08714c19ba0…
https://git.kernel.org/stable/c/728836ebca239810f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872 , < e059a14c1067bcc4f7b1947cd09f2baab98e340f (git) Affected: 0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872 , < 531e2ac2dab1ab90a16427c4f9c86663633e9487 (git) Affected: 0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872 , < f3313d952fc380cff53db9a28451a8807aa67b43 (git) Affected: 0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872 , < b9cb4e8ba71c9fbd935d66baa71bbb0b87192c94 (git) Affected: 0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872 , < 2187a56f2fd1715d54daed6392809223c60544f3 (git) Affected: 0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872 , < 165a330a68b5f299d8735f0194c314cb2e571269 (git) Affected: 0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872 , < da5e9f08714c19ba04e6863aca69d40f042f2e04 (git) Affected: 0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872 , < 728836ebca239810f164262b10211ef59182f811 (git)
Linux	Linux	Affected: 4.8 Unaffected: 0 , < 4.8 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.109 , ≤ 6.12.* (semver) Unaffected: 6.18.50 , ≤ 6.18.* (semver) Unaffected: 7.2.4 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/virtio_transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e059a14c1067bcc4f7b1947cd09f2baab98e340f",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "531e2ac2dab1ab90a16427c4f9c86663633e9487",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "f3313d952fc380cff53db9a28451a8807aa67b43",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "b9cb4e8ba71c9fbd935d66baa71bbb0b87192c94",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "2187a56f2fd1715d54daed6392809223c60544f3",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "165a330a68b5f299d8735f0194c314cb2e571269",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "da5e9f08714c19ba04e6863aca69d40f042f2e04",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            },
            {
              "lessThan": "728836ebca239810f164262b10211ef59182f811",
              "status": "affected",
              "version": "0ea9e1d3a9e3ef7d2a1462d3de6b95131dc7d872",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/virtio_transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.8"
            },
            {
              "lessThan": "4.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: flush works in dependency order\n\nvirtio_vsock_remove() stops the virtqueues and then flushes each work\nitem before freeing the enclosing virtio_vsock.  The current order does\nnot account for dependencies between those items: tx_work may queue\nsend_pkt_work, and send_pkt_work may queue rx_work.\n\nIn particular, send_pkt_work can set restart_rx and release tx_lock.\nThe remove path can then stop the queues and flush rx_work before\nsend_pkt_work queues it.  Although the later send_pkt_work flush waits\nfor that producer to finish, nothing waits for the newly queued rx_work,\nso kfree(vsock) can race with it.\n\nKASAN reported:\n\n  BUG: KASAN: slab-use-after-free in\n  virtio_transport_rx_work+0x487/0x4b0\n  Read of size 8 at addr ffff888114c2b008 by task kworker/1:1/47\n  Workqueue: virtio_vsock virtio_transport_rx_work\n  Call Trace:\n   virtio_transport_rx_work+0x487/0x4b0\n   process_one_work+0x688/0x1120\n   worker_thread+0x45b/0xd10\n  Allocated by task 1:\n   virtio_vsock_probe+0xef/0x6b0\n  Freed by task 84:\n   kfree+0x131/0x3c0\n   virtio_vsock_remove+0xd1/0x100\n\nFlush the works in producer-to-consumer order.  virtio_vsock_vqs_del()\nhas already disabled the queue callbacks and cleared the run flags, so\nafter tx_work and send_pkt_work are drained, no source remains that can\nqueue rx_work after its flush."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is in the guest virtio-vsock driver during virtio_vsock_remove(), reached via virtio device unplug and AF_VSOCK virtqueue completions rather than routed packets; kernel CNA guidance scores vsock and virtio guest-driver bugs as Local.\nAC:L - A malicious hypervisor controls both sides of the race by injecting vsock packets that generate RST replies so send_pkt_work sets restart_rx and queues rx_work, while concurrently hot-unplugging the device so remove() flushes rx_work too early; the attacker can retry and pause guest vCPUs, so success is not an uncontrolled condition.\nPR:N - No guest privileges are required: a malicious hypervisor or deprivileged VMM (Firecracker, crosvm, TDX/SEV-SNP) triggers device removal and virtqueue traffic with no guest credentials; host-sent packets to unbound ports generate reply skbs in kernel workqueues without any guest socket, user, or capability.\nUI:N - virtio_vsock_remove() and the racing send_pkt_work/rx_work items run from driver teardown and virtqueue IRQ workqueues; no guest user must mount a filesystem, open a device, or take any other action.\nS:U - The use-after-free corrupts the guest kernel virtio_vsock object and remains within the guest OS security authority; a guest-to-host escape would require a host vhost-vsock bug, not this guest-side remove path.\nC:H - KASAN reports a slab use-after-free read in virtio_transport_rx_work of the kfree\u0027d virtio_vsock; a workqueue callback running on a freed slab object enables attacker-controlled reuse and arbitrary kernel memory disclosure.\nI:H - After kfree(vsock), pending rx_work still runs against the freed object (rx_lock, vqs, flags); slab reuse of that work_struct yields arbitrary writes and control-flow hijack typical of kernel workqueue UAFs, not merely a crash.\nA:H - The reported KASAN bug is a kernel slab-use-after-free in virtio_transport_rx_work during device removal, causing oops or panic and fully denying guest availability even without completing a privilege-escalation exploit."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T11:58:59.006Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e059a14c1067bcc4f7b1947cd09f2baab98e340f"
        },
        {
          "url": "https://git.kernel.org/stable/c/531e2ac2dab1ab90a16427c4f9c86663633e9487"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3313d952fc380cff53db9a28451a8807aa67b43"
        },
        {
          "url": "https://git.kernel.org/stable/c/b9cb4e8ba71c9fbd935d66baa71bbb0b87192c94"
        },
        {
          "url": "https://git.kernel.org/stable/c/2187a56f2fd1715d54daed6392809223c60544f3"
        },
        {
          "url": "https://git.kernel.org/stable/c/165a330a68b5f299d8735f0194c314cb2e571269"
        },
        {
          "url": "https://git.kernel.org/stable/c/da5e9f08714c19ba04e6863aca69d40f042f2e04"
        },
        {
          "url": "https://git.kernel.org/stable/c/728836ebca239810f164262b10211ef59182f811"
        }
      ],
      "title": "vsock/virtio: flush works in dependency order",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80932",
    "datePublished": "2026-09-11T19:42:07.012Z",
    "dateReserved": "2026-08-26T14:34:25.802Z",
    "dateUpdated": "2026-09-14T11:58:59.006Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.