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CVE-2022-50352 (GCVE-0-2022-50352)

Vulnerability from cvelistv5 – Published: 2025-09-16 16:11 – Updated: 2026-05-11 19:17
VLAI
Title
net: hns: fix possible memory leak in hnae_ae_register()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: hns: fix possible memory leak in hnae_ae_register() Inject fault while probing module, if device_register() fails, but the refcount of kobject is not decreased to 0, the name allocated in dev_set_name() is leaked. Fix this by calling put_device(), so that name can be freed in callback function kobject_cleanup(). unreferenced object 0xffff00c01aba2100 (size 128): comm "systemd-udevd", pid 1259, jiffies 4294903284 (age 294.152s) hex dump (first 32 bytes): 68 6e 61 65 30 00 00 00 18 21 ba 1a c0 00 ff ff hnae0....!...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000034783f26>] slab_post_alloc_hook+0xa0/0x3e0 [<00000000748188f2>] __kmem_cache_alloc_node+0x164/0x2b0 [<00000000ab0743e8>] __kmalloc_node_track_caller+0x6c/0x390 [<000000006c0ffb13>] kvasprintf+0x8c/0x118 [<00000000fa27bfe1>] kvasprintf_const+0x60/0xc8 [<0000000083e10ed7>] kobject_set_name_vargs+0x3c/0xc0 [<000000000b87affc>] dev_set_name+0x7c/0xa0 [<000000003fd8fe26>] hnae_ae_register+0xcc/0x190 [hnae] [<00000000fe97edc9>] hns_dsaf_ae_init+0x9c/0x108 [hns_dsaf] [<00000000c36ff1eb>] hns_dsaf_probe+0x548/0x748 [hns_dsaf]
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 2026-01-14 18:22 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6fe6611ff275522a4e4c0359e2f46cdd07780d2f , < a3c148955c22fe1d94d7a2096005679c1f22eddf (git)
Affected: 6fe6611ff275522a4e4c0359e2f46cdd07780d2f , < 3b78453cca046d3b03853f0d077ad3ad130db886 (git)
Affected: 6fe6611ff275522a4e4c0359e2f46cdd07780d2f , < 7ae1345f6ad715acbcdc9e1ac28153684fd498bb (git)
Affected: 6fe6611ff275522a4e4c0359e2f46cdd07780d2f , < dfc0337c6dceb6449403b33ecb141f4a1458a1e9 (git)
Affected: 6fe6611ff275522a4e4c0359e2f46cdd07780d2f , < 2974f3b330ef25f5d34a4948d04290c2cd7802cf (git)
Affected: 6fe6611ff275522a4e4c0359e2f46cdd07780d2f , < 91f8f5342bee726ed5692583d58f69e7cc9ae60e (git)
Affected: 6fe6611ff275522a4e4c0359e2f46cdd07780d2f , < 02dc0db19d944b4a90941db505ecf1aaec714be4 (git)
Affected: 6fe6611ff275522a4e4c0359e2f46cdd07780d2f , < ff2f5ec5d009844ec28f171123f9e58750cef4bf (git)
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Linux Linux Affected: 4.4
Unaffected: 0 , < 4.4 (semver)
Unaffected: 4.9.332 , ≤ 4.9.* (semver)
Unaffected: 4.14.298 , ≤ 4.14.* (semver)
Unaffected: 4.19.264 , ≤ 4.19.* (semver)
Unaffected: 5.4.221 , ≤ 5.4.* (semver)
Unaffected: 5.10.152 , ≤ 5.10.* (semver)
Unaffected: 5.15.76 , ≤ 5.15.* (semver)
Unaffected: 6.0.6 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                    "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hns: fix possible memory leak in hnae_ae_register()\n\nInject fault while probing module, if device_register() fails,\nbut the refcount of kobject is not decreased to 0, the name\nallocated in dev_set_name() is leaked. Fix this by calling\nput_device(), so that name can be freed in callback function\nkobject_cleanup().\n\nunreferenced object 0xffff00c01aba2100 (size 128):\n  comm \"systemd-udevd\", pid 1259, jiffies 4294903284 (age 294.152s)\n  hex dump (first 32 bytes):\n    68 6e 61 65 30 00 00 00 18 21 ba 1a c0 00 ff ff  hnae0....!......\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003c0000000034783f26\u003e] slab_post_alloc_hook+0xa0/0x3e0\n    [\u003c00000000748188f2\u003e] __kmem_cache_alloc_node+0x164/0x2b0\n    [\u003c00000000ab0743e8\u003e] __kmalloc_node_track_caller+0x6c/0x390\n    [\u003c000000006c0ffb13\u003e] kvasprintf+0x8c/0x118\n    [\u003c00000000fa27bfe1\u003e] kvasprintf_const+0x60/0xc8\n    [\u003c0000000083e10ed7\u003e] kobject_set_name_vargs+0x3c/0xc0\n    [\u003c000000000b87affc\u003e] dev_set_name+0x7c/0xa0\n    [\u003c000000003fd8fe26\u003e] hnae_ae_register+0xcc/0x190 [hnae]\n    [\u003c00000000fe97edc9\u003e] hns_dsaf_ae_init+0x9c/0x108 [hns_dsaf]\n    [\u003c00000000c36ff1eb\u003e] hns_dsaf_probe+0x548/0x748 [hns_dsaf]"
          }
        ],
        "id": "CVE-2022-50352",
        "lastModified": "2026-06-17T05:23:18.140",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
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                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
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                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:22:33.052452Z",
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        "published": "2025-09-16T17:15:35.080",
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          },
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            "url": "https://git.kernel.org/stable/c/ff2f5ec5d009844ec28f171123f9e58750cef4bf"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
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              {
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                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
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                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:37:29+00:00",
      "cve": "CVE-2022-50352",
      "id": "CVE-2022-50352",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "156",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: hns: fix possible memory leak in hnae_ae_register()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50352.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 5.5,
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                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-50352",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-01-14T18:22:33.052452Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-401",
                    "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
                    "lang": "en",
                    "type": "CWE"
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                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-01-14T18:22:28.366Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
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              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/ethernet/hisilicon/hns/hnae.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
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                  "versionType": "git"
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              ]
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              "product": "Linux",
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              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "4.4"
                },
                {
                  "lessThan": "4.4",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.9.*",
                  "status": "unaffected",
                  "version": "4.9.332",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.14.*",
                  "status": "unaffected",
                  "version": "4.14.298",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.264",
                  "versionType": "semver"
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                {
                  "lessThanOrEqual": "5.4.*",
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                  "version": "5.4.221",
                  "versionType": "semver"
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                  "version": "5.10.152",
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                {
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                  "status": "unaffected",
                  "version": "5.15.76",
                  "versionType": "semver"
                },
                {
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                  "status": "unaffected",
                  "version": "6.0.6",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.1",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
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              "nodes": [
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                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                      "vulnerable": true
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                    {
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          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hns: fix possible memory leak in hnae_ae_register()\n\nInject fault while probing module, if device_register() fails,\nbut the refcount of kobject is not decreased to 0, the name\nallocated in dev_set_name() is leaked. Fix this by calling\nput_device(), so that name can be freed in callback function\nkobject_cleanup().\n\nunreferenced object 0xffff00c01aba2100 (size 128):\n  comm \"systemd-udevd\", pid 1259, jiffies 4294903284 (age 294.152s)\n  hex dump (first 32 bytes):\n    68 6e 61 65 30 00 00 00 18 21 ba 1a c0 00 ff ff  hnae0....!......\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003c0000000034783f26\u003e] slab_post_alloc_hook+0xa0/0x3e0\n    [\u003c00000000748188f2\u003e] __kmem_cache_alloc_node+0x164/0x2b0\n    [\u003c00000000ab0743e8\u003e] __kmalloc_node_track_caller+0x6c/0x390\n    [\u003c000000006c0ffb13\u003e] kvasprintf+0x8c/0x118\n    [\u003c00000000fa27bfe1\u003e] kvasprintf_const+0x60/0xc8\n    [\u003c0000000083e10ed7\u003e] kobject_set_name_vargs+0x3c/0xc0\n    [\u003c000000000b87affc\u003e] dev_set_name+0x7c/0xa0\n    [\u003c000000003fd8fe26\u003e] hnae_ae_register+0xcc/0x190 [hnae]\n    [\u003c00000000fe97edc9\u003e] hns_dsaf_ae_init+0x9c/0x108 [hns_dsaf]\n    [\u003c00000000c36ff1eb\u003e] hns_dsaf_probe+0x548/0x748 [hns_dsaf]"
            }
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            "dateUpdated": "2025-09-16T16:11:43.458Z",
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            {
              "url": "https://git.kernel.org/stable/c/ff2f5ec5d009844ec28f171123f9e58750cef4bf"
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          "title": "net: hns: fix possible memory leak in hnae_ae_register()",
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      "cveMetadata": {
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        "assignerShortName": "Linux",
        "cveId": "CVE-2022-50352",
        "datePublished": "2025-09-16T16:11:43.458Z",
        "dateReserved": "2025-09-16T16:03:27.882Z",
        "dateUpdated": "2026-01-14T18:22:59.144Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
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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.