GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2022-48697 (GCVE-0-2022-48697)

Vulnerability from cvelistv5 – Published: 2024-05-03 15:10 – Updated: 2026-08-05 08:51
VLAI
Title
nvmet: fix a use-after-free
Summary
In the Linux kernel, the following vulnerability has been resolved: nvmet: fix a use-after-free Fix the following use-after-free complaint triggered by blktests nvme/004: BUG: KASAN: user-memory-access in blk_mq_complete_request_remote+0xac/0x350 Read of size 4 at addr 0000607bd1835943 by task kworker/13:1/460 Workqueue: nvmet-wq nvme_loop_execute_work [nvme_loop] Call Trace: show_stack+0x52/0x58 dump_stack_lvl+0x49/0x5e print_report.cold+0x36/0x1e2 kasan_report+0xb9/0xf0 __asan_load4+0x6b/0x80 blk_mq_complete_request_remote+0xac/0x350 nvme_loop_queue_response+0x1df/0x275 [nvme_loop] __nvmet_req_complete+0x132/0x4f0 [nvmet] nvmet_req_complete+0x15/0x40 [nvmet] nvmet_execute_io_connect+0x18a/0x1f0 [nvmet] nvme_loop_execute_work+0x20/0x30 [nvme_loop] process_one_work+0x56e/0xa70 worker_thread+0x2d1/0x640 kthread+0x183/0x1c0 ret_from_fork+0x1f/0x30
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-12 20:35 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < 17f121ca3ec6be0fb32d77c7f65362934a38cc8e (git)
Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < 8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717 (git)
Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < be01f1c988757b95f11f090a9f491365670a522b (git)
Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < ebf46da50beb78066674354ad650606a467e33fa (git)
Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < 4484ce97a78171668c402e0c45db7f760aea8060 (git)
Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < 6a02a61e81c231cc5c680c5dbf8665275147ac52 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.8
Unaffected: 0 , < 4.8 (semver)
Unaffected: 4.19.260 , ≤ 4.19.* (semver)
Unaffected: 5.4.213 , ≤ 5.4.* (semver)
Unaffected: 5.10.143 , ≤ 5.10.* (semver)
Unaffected: 5.15.68 , ≤ 5.15.* (semver)
Unaffected: 5.19.9 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "LOW",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-48697",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-12T20:35:15.754942Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-30T15:52:41.996Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:17:55.813Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/17f121ca3ec6be0fb32d77c7f65362934a38cc8e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/be01f1c988757b95f11f090a9f491365670a522b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/ebf46da50beb78066674354ad650606a467e33fa"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4484ce97a78171668c402e0c45db7f760aea8060"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/6a02a61e81c231cc5c680c5dbf8665275147ac52"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "17f121ca3ec6be0fb32d77c7f65362934a38cc8e",
              "status": "affected",
              "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
              "versionType": "git"
            },
            {
              "lessThan": "8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717",
              "status": "affected",
              "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
              "versionType": "git"
            },
            {
              "lessThan": "be01f1c988757b95f11f090a9f491365670a522b",
              "status": "affected",
              "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
              "versionType": "git"
            },
            {
              "lessThan": "ebf46da50beb78066674354ad650606a467e33fa",
              "status": "affected",
              "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
              "versionType": "git"
            },
            {
              "lessThan": "4484ce97a78171668c402e0c45db7f760aea8060",
              "status": "affected",
              "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
              "versionType": "git"
            },
            {
              "lessThan": "6a02a61e81c231cc5c680c5dbf8665275147ac52",
              "status": "affected",
              "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/core.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": "4.19.*",
              "status": "unaffected",
              "version": "4.19.260",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.213",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.68",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.260",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.213",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.143",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.68",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.9",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: fix a use-after-free\n\nFix the following use-after-free complaint triggered by blktests nvme/004:\n\nBUG: KASAN: user-memory-access in blk_mq_complete_request_remote+0xac/0x350\nRead of size 4 at addr 0000607bd1835943 by task kworker/13:1/460\nWorkqueue: nvmet-wq nvme_loop_execute_work [nvme_loop]\nCall Trace:\n show_stack+0x52/0x58\n dump_stack_lvl+0x49/0x5e\n print_report.cold+0x36/0x1e2\n kasan_report+0xb9/0xf0\n __asan_load4+0x6b/0x80\n blk_mq_complete_request_remote+0xac/0x350\n nvme_loop_queue_response+0x1df/0x275 [nvme_loop]\n __nvmet_req_complete+0x132/0x4f0 [nvmet]\n nvmet_req_complete+0x15/0x40 [nvmet]\n nvmet_execute_io_connect+0x18a/0x1f0 [nvmet]\n nvme_loop_execute_work+0x20/0x30 [nvme_loop]\n process_one_work+0x56e/0xa70\n worker_thread+0x2d1/0x640\n kthread+0x183/0x1c0\n ret_from_fork+0x1f/0x30"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The bug is in nvmet core `__nvmet_req_complete()`, shared by all NVMe target transports including nvmet-tcp, which accepts and processes NVMe-oF commands from remote TCP peers.\nAC:L - This is a use-after-free in the request completion path that a remote client can drive via ordinary I/O and connect/teardown traffic; per guidance UAFs are AC:L unless the attacker cannot influence the triggering conditions.\nPR:N - In the most severe reasonable deployment (nvmet-tcp with allow_any_host and without DH-HMAC-CHAP), an unauthenticated remote client can connect and issue commands that reach the vulnerable completion path.\nUI:N - Exploitation requires no victim user action beyond the target already serving NVMe-oF; the attacker initiates the network connection and commands themselves.\nS:U - Impact is memory corruption within the target kernel\u0027s authority; this is not a VM/IOMMU/sandbox boundary escape.\nC:H - Use-after-free of the namespace reference around queue_response enables heap reuse and attacker-controlled object contents, which can be leveraged for arbitrary kernel memory disclosure.\nI:H - The same UAF provides a heap corruption primitive that can be shaped for arbitrary write or control-flow hijacking in the kernel.\nA:H - The UAF was observed as a KASAN fault in blk_mq completion and can cause kernel oops/panic even without full exploitation."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:51:50.506Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/17f121ca3ec6be0fb32d77c7f65362934a38cc8e"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717"
        },
        {
          "url": "https://git.kernel.org/stable/c/be01f1c988757b95f11f090a9f491365670a522b"
        },
        {
          "url": "https://git.kernel.org/stable/c/ebf46da50beb78066674354ad650606a467e33fa"
        },
        {
          "url": "https://git.kernel.org/stable/c/4484ce97a78171668c402e0c45db7f760aea8060"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a02a61e81c231cc5c680c5dbf8665275147ac52"
        }
      ],
      "title": "nvmet: fix a use-after-free",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48697",
    "datePublished": "2024-05-03T15:10:30.963Z",
    "dateReserved": "2024-05-03T14:55:07.145Z",
    "dateUpdated": "2026-08-05T08:51:50.506Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-48697",
      "date": "2026-09-18",
      "epss": "0.00587",
      "percentile": "0.46707"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/nvme/target/core.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "17f121ca3ec6be0fb32d77c7f65362934a38cc8e",
                    "status": "affected",
                    "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717",
                    "status": "affected",
                    "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "be01f1c988757b95f11f090a9f491365670a522b",
                    "status": "affected",
                    "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ebf46da50beb78066674354ad650606a467e33fa",
                    "status": "affected",
                    "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "4484ce97a78171668c402e0c45db7f760aea8060",
                    "status": "affected",
                    "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6a02a61e81c231cc5c680c5dbf8665275147ac52",
                    "status": "affected",
                    "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/nvme/target/core.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": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.260",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.213",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.143",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.68",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.19.*",
                    "status": "unaffected",
                    "version": "5.19.9",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.0",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D46F79E1-5F7D-4E9D-8BBD-D92B0C1B4608",
                    "versionEndExcluding": "4.19.260",
                    "versionStartIncluding": "4.8",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4C373116-9E23-44BA-A6B7-87C8BF5C3B85",
                    "versionEndExcluding": "5.4.213",
                    "versionStartIncluding": "4.20",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E77EECF5-C31E-4342-8014-AA844BB83A76",
                    "versionEndExcluding": "5.10.143",
                    "versionStartIncluding": "5.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C440CED2-FE3C-495D-839C-857FFC6F523A",
                    "versionEndExcluding": "5.15.68",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B4895A99-6E1B-4C76-A510-FDED00AD7D29",
                    "versionEndExcluding": "5.19.9",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "A46498B3-78E1-4623-AAE1-94D29A42BE4E",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "F8446E87-F5F6-41CA-8201-BAE0F0CA6DD9",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: fix a use-after-free\n\nFix the following use-after-free complaint triggered by blktests nvme/004:\n\nBUG: KASAN: user-memory-access in blk_mq_complete_request_remote+0xac/0x350\nRead of size 4 at addr 0000607bd1835943 by task kworker/13:1/460\nWorkqueue: nvmet-wq nvme_loop_execute_work [nvme_loop]\nCall Trace:\n show_stack+0x52/0x58\n dump_stack_lvl+0x49/0x5e\n print_report.cold+0x36/0x1e2\n kasan_report+0xb9/0xf0\n __asan_load4+0x6b/0x80\n blk_mq_complete_request_remote+0xac/0x350\n nvme_loop_queue_response+0x1df/0x275 [nvme_loop]\n __nvmet_req_complete+0x132/0x4f0 [nvmet]\n nvmet_req_complete+0x15/0x40 [nvmet]\n nvmet_execute_io_connect+0x18a/0x1f0 [nvmet]\n nvme_loop_execute_work+0x20/0x30 [nvme_loop]\n process_one_work+0x56e/0xa70\n worker_thread+0x2d1/0x640\n kthread+0x183/0x1c0\n ret_from_fork+0x1f/0x30"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvmet: corrige un use-after-free. Solucione la siguiente queja de use-after-free activada por blktests nvme/004: ERROR: KASAN: acceso a la memoria del usuario en blk_mq_complete_request_remote+0xac /0x350 Lectura de tama\u00f1o 4 en la direcci\u00f3n 0000607bd1835943 por tarea kworker/13:1/460 Cola de trabajo: nvmet-wq nvme_loop_execute_work [nvme_loop] Seguimiento de llamadas: show_stack+0x52/0x58 dump_stack_lvl+0x49/0x5e /0x1e2 informe_kasan+0xb9 /0xf0 __asan_load4+0x6b/0x80 blk_mq_complete_request_remote+0xac/0x350 nvme_loop_queue_response+0x1df/0x275 [nvme_loop] __nvmet_req_complete+0x132/0x4f0 [nvmet_req_complete+0x15/0x 40 [nvmet] nvmet_execute_io_connect+0x18a/0x1f0 [nvmet] nvme_loop_execute_work+0x20/0x30 [ nvme_loop] proceso_one_work+0x56e/0xa70 trabajador_thread+0x2d1/0x640 kthread+0x183/0x1c0 ret_from_fork+0x1f/0x30"
          }
        ],
        "id": "CVE-2022-48697",
        "lastModified": "2026-08-04T10:17:16.450",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "LOW",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.4,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2022-48697",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-12T20:35:15.754942Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-05-03T16:15:08.363",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/17f121ca3ec6be0fb32d77c7f65362934a38cc8e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4484ce97a78171668c402e0c45db7f760aea8060"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6a02a61e81c231cc5c680c5dbf8665275147ac52"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/be01f1c988757b95f11f090a9f491365670a522b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ebf46da50beb78066674354ad650606a467e33fa"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/17f121ca3ec6be0fb32d77c7f65362934a38cc8e"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4484ce97a78171668c402e0c45db7f760aea8060"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6a02a61e81c231cc5c680c5dbf8665275147ac52"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/be01f1c988757b95f11f090a9f491365670a522b"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ebf46da50beb78066674354ad650606a467e33fa"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-04T23:01:20+00:00",
      "cve": "CVE-2022-48697",
      "id": "CVE-2022-48697",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nvmet: fix a use-after-free",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48697.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-03T15:17:55.813Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/17f121ca3ec6be0fb32d77c7f65362934a38cc8e"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/be01f1c988757b95f11f090a9f491365670a522b"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/ebf46da50beb78066674354ad650606a467e33fa"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/4484ce97a78171668c402e0c45db7f760aea8060"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/6a02a61e81c231cc5c680c5dbf8665275147ac52"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "LOW",
                  "baseScore": 5.3,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "LOW",
                  "integrityImpact": "LOW",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-48697",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-06-12T20:35:15.754942Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "description": "CWE-noinfo Not enough information",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-06-12T20:35:32.414Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/nvme/target/core.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "17f121ca3ec6be0fb32d77c7f65362934a38cc8e",
                  "status": "affected",
                  "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                  "versionType": "git"
                },
                {
                  "lessThan": "8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717",
                  "status": "affected",
                  "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                  "versionType": "git"
                },
                {
                  "lessThan": "be01f1c988757b95f11f090a9f491365670a522b",
                  "status": "affected",
                  "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                  "versionType": "git"
                },
                {
                  "lessThan": "ebf46da50beb78066674354ad650606a467e33fa",
                  "status": "affected",
                  "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                  "versionType": "git"
                },
                {
                  "lessThan": "4484ce97a78171668c402e0c45db7f760aea8060",
                  "status": "affected",
                  "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                  "versionType": "git"
                },
                {
                  "lessThan": "6a02a61e81c231cc5c680c5dbf8665275147ac52",
                  "status": "affected",
                  "version": "a07b4970f464f13640e28e16dad6cfa33647cc99",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/nvme/target/core.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": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.260",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.213",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.143",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.68",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.19.*",
                  "status": "unaffected",
                  "version": "5.19.9",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.0",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.260",
                      "versionStartIncluding": "4.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.213",
                      "versionStartIncluding": "4.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.143",
                      "versionStartIncluding": "4.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.68",
                      "versionStartIncluding": "4.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.19.9",
                      "versionStartIncluding": "4.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.0",
                      "versionStartIncluding": "4.8",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: fix a use-after-free\n\nFix the following use-after-free complaint triggered by blktests nvme/004:\n\nBUG: KASAN: user-memory-access in blk_mq_complete_request_remote+0xac/0x350\nRead of size 4 at addr 0000607bd1835943 by task kworker/13:1/460\nWorkqueue: nvmet-wq nvme_loop_execute_work [nvme_loop]\nCall Trace:\n show_stack+0x52/0x58\n dump_stack_lvl+0x49/0x5e\n print_report.cold+0x36/0x1e2\n kasan_report+0xb9/0xf0\n __asan_load4+0x6b/0x80\n blk_mq_complete_request_remote+0xac/0x350\n nvme_loop_queue_response+0x1df/0x275 [nvme_loop]\n __nvmet_req_complete+0x132/0x4f0 [nvmet]\n nvmet_req_complete+0x15/0x40 [nvmet]\n nvmet_execute_io_connect+0x18a/0x1f0 [nvmet]\n nvme_loop_execute_work+0x20/0x30 [nvme_loop]\n process_one_work+0x56e/0xa70\n worker_thread+0x2d1/0x640\n kthread+0x183/0x1c0\n ret_from_fork+0x1f/0x30"
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:N - The bug is in nvmet core `__nvmet_req_complete()`, shared by all NVMe target transports including nvmet-tcp, which accepts and processes NVMe-oF commands from remote TCP peers.\nAC:L - This is a use-after-free in the request completion path that a remote client can drive via ordinary I/O and connect/teardown traffic; per guidance UAFs are AC:L unless the attacker cannot influence the triggering conditions.\nPR:N - In the most severe reasonable deployment (nvmet-tcp with allow_any_host and without DH-HMAC-CHAP), an unauthenticated remote client can connect and issue commands that reach the vulnerable completion path.\nUI:N - Exploitation requires no victim user action beyond the target already serving NVMe-oF; the attacker initiates the network connection and commands themselves.\nS:U - Impact is memory corruption within the target kernel\u0027s authority; this is not a VM/IOMMU/sandbox boundary escape.\nC:H - Use-after-free of the namespace reference around queue_response enables heap reuse and attacker-controlled object contents, which can be leveraged for arbitrary kernel memory disclosure.\nI:H - The same UAF provides a heap corruption primitive that can be shaped for arbitrary write or control-flow hijacking in the kernel.\nA:H - The UAF was observed as a KASAN fault in blk_mq completion and can cause kernel oops/panic even without full exploitation."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T08:51:50.506Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/17f121ca3ec6be0fb32d77c7f65362934a38cc8e"
            },
            {
              "url": "https://git.kernel.org/stable/c/8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717"
            },
            {
              "url": "https://git.kernel.org/stable/c/be01f1c988757b95f11f090a9f491365670a522b"
            },
            {
              "url": "https://git.kernel.org/stable/c/ebf46da50beb78066674354ad650606a467e33fa"
            },
            {
              "url": "https://git.kernel.org/stable/c/4484ce97a78171668c402e0c45db7f760aea8060"
            },
            {
              "url": "https://git.kernel.org/stable/c/6a02a61e81c231cc5c680c5dbf8665275147ac52"
            }
          ],
          "title": "nvmet: fix a use-after-free",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-48697",
        "datePublished": "2024-05-03T15:10:30.963Z",
        "dateReserved": "2024-05-03T14:55:07.145Z",
        "dateUpdated": "2026-08-05T08:51:50.506Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.