CVE-2023-53303 (GCVE-0-2023-53303)

Vulnerability from cvelistv5 – Published: 2025-09-16 08:11 – Updated: 2026-05-11 19:42
VLAI
Title
net: microchip: vcap api: Fix possible memory leak for vcap_dup_rule()
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
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 18:14 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 814e7693207f1bd936d600f9b5467f133e3d6e40 , < a26ba60413b2c8f95daf0ee0152cf82abd7bfbe4 (git)
Affected: 814e7693207f1bd936d600f9b5467f133e3d6e40 , < 281f65d29d6da1a9b6907fb0b145aaf34f4e4822 (git)
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Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.5.4 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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            {
              "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"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-09-16T08:11:33.842Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/a26ba60413b2c8f95daf0ee0152cf82abd7bfbe4"
            },
            {
              "url": "https://git.kernel.org/stable/c/281f65d29d6da1a9b6907fb0b145aaf34f4e4822"
            }
          ],
          "title": "net: microchip: vcap api: Fix possible memory leak for vcap_dup_rule()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2023-53303",
        "datePublished": "2025-09-16T08:11:33.842Z",
        "dateReserved": "2025-09-16T08:09:37.994Z",
        "dateUpdated": "2026-01-14T18:22:54.574Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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