FKIE_CVE-2023-53303

Vulnerability from fkie_nvd - Published: 2025-09-16 08:15 - Updated: 2025-12-02 19:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: microchip: vcap api: Fix possible memory leak for vcap_dup_rule() Inject fault When select CONFIG_VCAP_KUNIT_TEST, the below memory leak occurs. If kzalloc() for duprule succeeds, but the following kmemdup() fails, the duprule, ckf and caf memory will be leaked. So kfree them in the error path. unreferenced object 0xffff122744c50600 (size 192): comm "kunit_try_catch", pid 346, jiffies 4294896122 (age 911.812s) hex dump (first 32 bytes): 10 27 00 00 04 00 00 00 1e 00 00 00 2c 01 00 00 .'..........,... 00 00 00 00 00 00 00 00 18 06 c5 44 27 12 ff ff ...........D'... backtrace: [<00000000394b0db8>] __kmem_cache_alloc_node+0x274/0x2f8 [<0000000001bedc67>] kmalloc_trace+0x38/0x88 [<00000000b0612f98>] vcap_dup_rule+0x50/0x460 [<000000005d2d3aca>] vcap_add_rule+0x8cc/0x1038 [<00000000eef9d0f8>] test_vcap_xn_rule_creator.constprop.0.isra.0+0x238/0x494 [<00000000cbda607b>] vcap_api_rule_remove_in_front_test+0x1ac/0x698 [<00000000c8766299>] kunit_try_run_case+0xe0/0x20c [<00000000c4fe9186>] kunit_generic_run_threadfn_adapter+0x50/0x94 [<00000000f6864acf>] kthread+0x2e8/0x374 [<0000000022e639b3>] ret_from_fork+0x10/0x20
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/281f65d29d6da1a9b6907fb0b145aaf34f4e4822Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a26ba60413b2c8f95daf0ee0152cf82abd7bfbe4Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.6
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EAC0AD77-8F42-4E7A-AE44-0710B111E3D4",
              "versionEndExcluding": "6.5.4",
              "versionStartIncluding": "6.3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "84267A4F-DBC2-444F-B41D-69E15E1BEC97",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: microchip: vcap api: Fix possible memory leak for vcap_dup_rule()\n\nInject fault When select CONFIG_VCAP_KUNIT_TEST, the below memory leak\noccurs. If kzalloc() for duprule succeeds, but the following\nkmemdup() fails, the duprule, ckf and caf memory will be leaked. So kfree\nthem in the error path.\n\nunreferenced object 0xffff122744c50600 (size 192):\n  comm \"kunit_try_catch\", pid 346, jiffies 4294896122 (age 911.812s)\n  hex dump (first 32 bytes):\n    10 27 00 00 04 00 00 00 1e 00 00 00 2c 01 00 00  .\u0027..........,...\n    00 00 00 00 00 00 00 00 18 06 c5 44 27 12 ff ff  ...........D\u0027...\n  backtrace:\n    [\u003c00000000394b0db8\u003e] __kmem_cache_alloc_node+0x274/0x2f8\n    [\u003c0000000001bedc67\u003e] kmalloc_trace+0x38/0x88\n    [\u003c00000000b0612f98\u003e] vcap_dup_rule+0x50/0x460\n    [\u003c000000005d2d3aca\u003e] vcap_add_rule+0x8cc/0x1038\n    [\u003c00000000eef9d0f8\u003e] test_vcap_xn_rule_creator.constprop.0.isra.0+0x238/0x494\n    [\u003c00000000cbda607b\u003e] vcap_api_rule_remove_in_front_test+0x1ac/0x698\n    [\u003c00000000c8766299\u003e] kunit_try_run_case+0xe0/0x20c\n    [\u003c00000000c4fe9186\u003e] kunit_generic_run_threadfn_adapter+0x50/0x94\n    [\u003c00000000f6864acf\u003e] kthread+0x2e8/0x374\n    [\u003c0000000022e639b3\u003e] ret_from_fork+0x10/0x20"
    }
  ],
  "id": "CVE-2023-53303",
  "lastModified": "2025-12-02T19:31:22.610",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-09-16T08:15:39.737",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/281f65d29d6da1a9b6907fb0b145aaf34f4e4822"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/a26ba60413b2c8f95daf0ee0152cf82abd7bfbe4"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.