CVE-2024-50084 (GCVE-0-2024-50084)
Vulnerability from cvelistv5
Published
2024-10-29 00:50
Modified
2026-05-23 15:54
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: microchip: vcap api: Fix memory leaks in vcap_api_encode_rule_test() Commit a3c1e45156ad ("net: microchip: vcap: Fix use-after-free error in kunit test") fixed the use-after-free error, but introduced below memory leaks by removing necessary vcap_free_rule(), add it to fix it. unreferenced object 0xffffff80ca58b700 (size 192): comm "kunit_try_catch", pid 1215, jiffies 4294898264 hex dump (first 32 bytes): 00 12 7a 00 05 00 00 00 0a 00 00 00 64 00 00 00 ..z.........d... 00 00 00 00 00 00 00 00 00 04 0b cc 80 ff ff ff ................ backtrace (crc 9c09c3fe): [<0000000052a0be73>] kmemleak_alloc+0x34/0x40 [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4 [<0000000040a01b8d>] vcap_alloc_rule+0x3cc/0x9c4 [<000000003fe86110>] vcap_api_encode_rule_test+0x1ac/0x16b0 [<00000000b3595fc4>] kunit_try_run_case+0x13c/0x3ac [<0000000010f5d2bf>] kunit_generic_run_threadfn_adapter+0x80/0xec [<00000000c5d82c9a>] kthread+0x2e8/0x374 [<00000000f4287308>] ret_from_fork+0x10/0x20 unreferenced object 0xffffff80cc0b0400 (size 64): comm "kunit_try_catch", pid 1215, jiffies 4294898265 hex dump (first 32 bytes): 80 04 0b cc 80 ff ff ff 18 b7 58 ca 80 ff ff ff ..........X..... 39 00 00 00 02 00 00 00 06 05 04 03 02 01 ff ff 9............... backtrace (crc daf014e9): [<0000000052a0be73>] kmemleak_alloc+0x34/0x40 [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4 [<000000000ff63fd4>] vcap_rule_add_key+0x2cc/0x528 [<00000000dfdb1e81>] vcap_api_encode_rule_test+0x224/0x16b0 [<00000000b3595fc4>] kunit_try_run_case+0x13c/0x3ac [<0000000010f5d2bf>] kunit_generic_run_threadfn_adapter+0x80/0xec [<00000000c5d82c9a>] kthread+0x2e8/0x374 [<00000000f4287308>] ret_from_fork+0x10/0x20 unreferenced object 0xffffff80cc0b0700 (size 64): comm "kunit_try_catch", pid 1215, jiffies 4294898265 hex dump (first 32 bytes): 80 07 0b cc 80 ff ff ff 28 b7 58 ca 80 ff ff ff ........(.X..... 3c 00 00 00 00 00 00 00 01 2f 03 b3 ec ff ff ff <......../...... backtrace (crc 8d877792): [<0000000052a0be73>] kmemleak_alloc+0x34/0x40 [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4 [<000000006eadfab7>] vcap_rule_add_action+0x2d0/0x52c [<00000000323475d1>] vcap_api_encode_rule_test+0x4d4/0x16b0 [<00000000b3595fc4>] kunit_try_run_case+0x13c/0x3ac [<0000000010f5d2bf>] kunit_generic_run_threadfn_adapter+0x80/0xec [<00000000c5d82c9a>] kthread+0x2e8/0x374 [<00000000f4287308>] ret_from_fork+0x10/0x20 unreferenced object 0xffffff80cc0b0900 (size 64): comm "kunit_try_catch", pid 1215, jiffies 4294898266 hex dump (first 32 bytes): 80 09 0b cc 80 ff ff ff 80 06 0b cc 80 ff ff ff ................ 7d 00 00 00 01 00 00 00 00 00 00 00 ff 00 00 00 }............... backtrace (crc 34181e56): [<0000000052a0be73>] kmemleak_alloc+0x34/0x40 [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4 [<000000000ff63fd4>] vcap_rule_add_key+0x2cc/0x528 [<00000000991e3564>] vcap_val_rule+0xcf0/0x13e8 [<00000000fc9868e5>] vcap_api_encode_rule_test+0x678/0x16b0 [<00000000b3595fc4>] kunit_try_run_case+0x13c/0x3ac [<0000000010f5d2bf>] kunit_generic_run_threadfn_adapter+0x80/0xec [<00000000c5d82c9a>] kthread+0x2e8/0x374 [<00000000f4287308>] ret_from_fork+0x10/0x20 unreferenced object 0xffffff80cc0b0980 (size 64): comm "kunit_try_catch", pid 1215, jiffies 4294898266 hex dump (first 32 bytes): 18 b7 58 ca 80 ff ff ff 00 09 0b cc 80 ff ff ff ..X............. 67 00 00 00 00 00 00 00 01 01 74 88 c0 ff ff ff g.........t..... backtrace (crc 275fd9be): [<0000000052a0be73>] kmemleak_alloc+0x34/0x40 [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4 [<000000000ff63fd4>] vcap_rule_add_key+0x2cc/0x528 [<000000001396a1a2>] test_add_de ---truncated---
References
Impacted products
Vendor Product Version
Linux Linux Version: b0804c286ccfcf5f5c004d5bf8a54c0508b5e86b
Version: a3c1e45156ad39f225cd7ddae0f81230a3b1e657
Version: a3c1e45156ad39f225cd7ddae0f81230a3b1e657
Version: f7fe95f40c85311c98913fe6ae2c56adb7f767a7
Version: 6.6.51   ≤
Version: 6.10.10   ≤
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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-50084",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-12-11T14:49:03.899652Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-12-11T14:58:34.572Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microchip/vcap/vcap_api_kunit.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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              "lessThan": "217a3d98d1e9891a8b1438a27dfbc64ddf01f691",
              "status": "affected",
              "version": "a3c1e45156ad39f225cd7ddae0f81230a3b1e657",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f7fe95f40c85311c98913fe6ae2c56adb7f767a7",
              "versionType": "git"
            },
            {
              "lessThan": "6.6.58",
              "status": "affected",
              "version": "6.6.51",
              "versionType": "semver"
            },
            {
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              "status": "affected",
              "version": "6.10.10",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microchip/vcap/vcap_api_kunit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.58",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.58",
                  "versionStartIncluding": "6.6.51",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.5",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.10.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: microchip: vcap api: Fix memory leaks in vcap_api_encode_rule_test()\n\nCommit a3c1e45156ad (\"net: microchip: vcap: Fix use-after-free error in\nkunit test\") fixed the use-after-free error, but introduced below\nmemory leaks by removing necessary vcap_free_rule(), add it to fix it.\n\n\tunreferenced object 0xffffff80ca58b700 (size 192):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898264\n\t  hex dump (first 32 bytes):\n\t    00 12 7a 00 05 00 00 00 0a 00 00 00 64 00 00 00  ..z.........d...\n\t    00 00 00 00 00 00 00 00 00 04 0b cc 80 ff ff ff  ................\n\t  backtrace (crc 9c09c3fe):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c0000000040a01b8d\u003e] vcap_alloc_rule+0x3cc/0x9c4\n\t    [\u003c000000003fe86110\u003e] vcap_api_encode_rule_test+0x1ac/0x16b0\n\t    [\u003c00000000b3595fc4\u003e] kunit_try_run_case+0x13c/0x3ac\n\t    [\u003c0000000010f5d2bf\u003e] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [\u003c00000000c5d82c9a\u003e] kthread+0x2e8/0x374\n\t    [\u003c00000000f4287308\u003e] ret_from_fork+0x10/0x20\n\tunreferenced object 0xffffff80cc0b0400 (size 64):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898265\n\t  hex dump (first 32 bytes):\n\t    80 04 0b cc 80 ff ff ff 18 b7 58 ca 80 ff ff ff  ..........X.....\n\t    39 00 00 00 02 00 00 00 06 05 04 03 02 01 ff ff  9...............\n\t  backtrace (crc daf014e9):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c000000000ff63fd4\u003e] vcap_rule_add_key+0x2cc/0x528\n\t    [\u003c00000000dfdb1e81\u003e] vcap_api_encode_rule_test+0x224/0x16b0\n\t    [\u003c00000000b3595fc4\u003e] kunit_try_run_case+0x13c/0x3ac\n\t    [\u003c0000000010f5d2bf\u003e] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [\u003c00000000c5d82c9a\u003e] kthread+0x2e8/0x374\n\t    [\u003c00000000f4287308\u003e] ret_from_fork+0x10/0x20\n\tunreferenced object 0xffffff80cc0b0700 (size 64):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898265\n\t  hex dump (first 32 bytes):\n\t    80 07 0b cc 80 ff ff ff 28 b7 58 ca 80 ff ff ff  ........(.X.....\n\t    3c 00 00 00 00 00 00 00 01 2f 03 b3 ec ff ff ff  \u003c......../......\n\t  backtrace (crc 8d877792):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c000000006eadfab7\u003e] vcap_rule_add_action+0x2d0/0x52c\n\t    [\u003c00000000323475d1\u003e] vcap_api_encode_rule_test+0x4d4/0x16b0\n\t    [\u003c00000000b3595fc4\u003e] kunit_try_run_case+0x13c/0x3ac\n\t    [\u003c0000000010f5d2bf\u003e] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [\u003c00000000c5d82c9a\u003e] kthread+0x2e8/0x374\n\t    [\u003c00000000f4287308\u003e] ret_from_fork+0x10/0x20\n\tunreferenced object 0xffffff80cc0b0900 (size 64):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898266\n\t  hex dump (first 32 bytes):\n\t    80 09 0b cc 80 ff ff ff 80 06 0b cc 80 ff ff ff  ................\n\t    7d 00 00 00 01 00 00 00 00 00 00 00 ff 00 00 00  }...............\n\t  backtrace (crc 34181e56):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c000000000ff63fd4\u003e] vcap_rule_add_key+0x2cc/0x528\n\t    [\u003c00000000991e3564\u003e] vcap_val_rule+0xcf0/0x13e8\n\t    [\u003c00000000fc9868e5\u003e] vcap_api_encode_rule_test+0x678/0x16b0\n\t    [\u003c00000000b3595fc4\u003e] kunit_try_run_case+0x13c/0x3ac\n\t    [\u003c0000000010f5d2bf\u003e] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [\u003c00000000c5d82c9a\u003e] kthread+0x2e8/0x374\n\t    [\u003c00000000f4287308\u003e] ret_from_fork+0x10/0x20\n\tunreferenced object 0xffffff80cc0b0980 (size 64):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898266\n\t  hex dump (first 32 bytes):\n\t    18 b7 58 ca 80 ff ff ff 00 09 0b cc 80 ff ff ff  ..X.............\n\t    67 00 00 00 00 00 00 00 01 01 74 88 c0 ff ff ff  g.........t.....\n\t  backtrace (crc 275fd9be):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c000000000ff63fd4\u003e] vcap_rule_add_key+0x2cc/0x528\n\t    [\u003c000000001396a1a2\u003e] test_add_de\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:54:25.123Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/20b5342de51bda794791e013b90754774003a515"
        },
        {
          "url": "https://git.kernel.org/stable/c/170792097bb21e5da77443b6a03d35489813eabe"
        },
        {
          "url": "https://git.kernel.org/stable/c/217a3d98d1e9891a8b1438a27dfbc64ddf01f691"
        }
      ],
      "title": "net: microchip: vcap api: Fix memory leaks in vcap_api_encode_rule_test()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50084",
    "datePublished": "2024-10-29T00:50:27.226Z",
    "dateReserved": "2024-10-21T19:36:19.942Z",
    "dateUpdated": "2026-05-23T15:54:25.123Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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