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CVE-2022-49316 (GCVE-0-2022-49316)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:10 – Updated: 2026-05-11 18:57
VLAI
Title
NFSv4: Don't hold the layoutget locks across multiple RPC calls
Summary
In the Linux kernel, the following vulnerability has been resolved: NFSv4: Don't hold the layoutget locks across multiple RPC calls When doing layoutget as part of the open() compound, we have to be careful to release the layout locks before we can call any further RPC calls, such as setattr(). The reason is that those calls could trigger a recall, which could deadlock.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:43 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 56f487f8c8fc5d6e582b79a86fc132d050129e15 , < 6b3fc1496e7227cd6a39a80bbfb7588ef7c7a010 (git)
Affected: 56f487f8c8fc5d6e582b79a86fc132d050129e15 , < a2b3be930e79cc5d9d829f158e31172b2043f0cd (git)
Affected: 56f487f8c8fc5d6e582b79a86fc132d050129e15 , < 0ee5b9644f06b4d3cdcd9544f43f63312e425a4c (git)
Affected: 56f487f8c8fc5d6e582b79a86fc132d050129e15 , < d4c2a041ed3ba114502d5ed6ace5b1a48d637a8e (git)
Affected: 56f487f8c8fc5d6e582b79a86fc132d050129e15 , < 08d7a26d115cc7892668baa9750f64bd8baca29b (git)
Affected: 56f487f8c8fc5d6e582b79a86fc132d050129e15 , < ea759ae0a9ae5acee677d722129710ac89cc59c1 (git)
Affected: 56f487f8c8fc5d6e582b79a86fc132d050129e15 , < 6949493884fe88500de4af182588e071cf1544ee (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.18
Unaffected: 0 , < 4.18 (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d4c2a041ed3ba114502d5ed6ace5b1a48d637a8e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ea759ae0a9ae5acee677d722129710ac89cc59c1"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
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                "value": "CWE-667"
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            "type": "Primary"
          },
          {
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                "value": "CWE-667"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
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      "current_release_date": "2026-07-21T18:43:13+00:00",
      "cve": "CVE-2022-49316",
      "id": "CVE-2022-49316",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "166",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: NFSv4: Don\u0027t hold the layoutget locks across multiple RPC calls",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49316.json",
      "version": "3"
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      "current_release_date": "2026-09-08T00:16:57Z",
      "cve": "CVE-2022-49316",
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      "initial_release_date": "2025-02-27T03:08:53Z",
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      "product_status:recommended": "342",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49316",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49316.json",
      "version": "56"
    },
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                  "baseScore": 5.5,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
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                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
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              },
              {
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                      {
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                ]
              }
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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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            },
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              "versions": [
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}



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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.


Detection rules are retrieved from Rulezet.


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.