FKIE_CVE-2026-98561

Vulnerability from fkie_nvd - Published: 2026-10-18 16:17 - Updated: 2026-10-19 10:19
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: nfp: hold IPsec RX state under the XArray lock nfp_net_ipsec_rx() drops the XArray lock before taking a reference to the xfrm_state it found. The delete path can erase the entry and drop the last state reference in that interval. RX can then try to increment a zero refcount after the state has been queued for destruction. The driver queues firmware invalidation asynchronously; the delete path does not wait for the command to complete or drain pending RX processing. The XFRM garbage collector waits for an RCU grace period before freeing the state. That delays reclamation but does not make acquiring a reference from zero valid. Take the xfrm_state reference before releasing the XArray lock so xa_erase() cannot run between lookup and reference acquisition.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1a983a4e14c635c40354be110cd9a1a5c94e01e6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8468d05aa08dc430b5675beadf6f6fb8943f170b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c1b1639fb138db52fcfbd1747e92f2454076c6d5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd765023bb54f9650f8b9137906fb2c4a554dd1d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/netronome/nfp/crypto/ipsec.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c1b1639fb138db52fcfbd1747e92f2454076c6d5",
              "status": "affected",
              "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f",
              "versionType": "git"
            },
            {
              "lessThan": "dd765023bb54f9650f8b9137906fb2c4a554dd1d",
              "status": "affected",
              "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f",
              "versionType": "git"
            },
            {
              "lessThan": "8468d05aa08dc430b5675beadf6f6fb8943f170b",
              "status": "affected",
              "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f",
              "versionType": "git"
            },
            {
              "lessThan": "fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488",
              "status": "affected",
              "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f",
              "versionType": "git"
            },
            {
              "lessThan": "1a983a4e14c635c40354be110cd9a1a5c94e01e6",
              "status": "affected",
              "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/netronome/nfp/crypto/ipsec.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "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\nnfp: hold IPsec RX state under the XArray lock\n\nnfp_net_ipsec_rx() drops the XArray lock before taking a reference to the\nxfrm_state it found. The delete path can erase the entry and drop the last\nstate reference in that interval. RX can then try to increment a zero\nrefcount after the state has been queued for destruction.\n\nThe driver queues firmware invalidation asynchronously; the delete path\ndoes not wait for the command to complete or drain pending RX processing.\n\nThe XFRM garbage collector waits for an RCU grace period before freeing\nthe state. That delays reclamation but does not make acquiring a reference\nfrom zero valid.\n\nTake the xfrm_state reference before releasing the XArray lock so\nxa_erase() cannot run between lookup and reference acquisition."
    }
  ],
  "id": "CVE-2026-98561",
  "lastModified": "2026-10-19T10:19:12.680",
  "metrics": {},
  "published": "2026-10-18T16:17:08.243",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1a983a4e14c635c40354be110cd9a1a5c94e01e6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8468d05aa08dc430b5675beadf6f6fb8943f170b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c1b1639fb138db52fcfbd1747e92f2454076c6d5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dd765023bb54f9650f8b9137906fb2c4a554dd1d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.