net/mlx5e: CT: Fix null-ptr-deref in add rule err flow

{
  "id": "cf89306431336ceac1345f222be898b42dbe9d70c56b6d6c9645063d000e7ca0",
  "url": "https://osv.dev/vulnerability/CVE-2024-53120",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net/mlx5e: CT: Fix null-ptr-deref in add rule err flow",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: CT: Fix null-ptr-deref in add rule err flow In error flow of mlx5_tc_ct_entry_add_rule(), in case ct_rule_add() callback returns error, zone_rule->attr is used uninitiated. Fix it to use attr which has the needed pointer value. Kernel log: BUG: kernel NULL pointer dereference, address: 0000000000000110 RIP: 0010:mlx5_tc_ct_entry_add_rule+0x2b1/0x2f0 [mlx5_core] … Call Trace: ? __die+0x20/0x70 ? page_fault_oops+0x150/0x3e0 ? exc_page_fault+0x74/0x140 ? asm_exc_page_fault+0x22/0x30 ? mlx5_tc_ct_entry_add_rule+0x2b1/0x2f0 [mlx5_core] ? mlx5_tc_ct_entry_add_rule+0x1d5/0x2f0 [mlx5_core] mlx5_tc_ct_block_flow_offload+0xc6a/0xf90 [mlx5_core] ? nf_flow_offload_tuple+0xd8/0x190 [nf_flow_table] nf_flow_offload_tuple+0xd8/0x190 [nf_flow_table] flow_offload_work_handler+0x142/0x320 [nf_flow_table] ? finish_task_switch.isra.0+0x15b/0x2b0 process_one_work+0x16c/0x320 worker_thread+0x28c/0x3a0 ? __pfx_worker_thread+0x10/0x10 kthread+0xb8/0xf0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2d/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30",
    "evidence": "osv:CVE-2024-53120",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.174",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.119",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.63",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.11.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-53120",
      "aliases": [
        "CVE-2024-53120"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7fac5c2eced36f335ee19ff316bd3182fbeda823"
                },
                {
                  "fixed": "882f392d9e3649557e71efd78ae20c86039ffb7c"
                },
                {
                  "fixed": "0c7c70ff8b696cfedba350411dca736361ef9a0f"
                },
                {
                  "fixed": "06dc488a593020bd2f006798557d2a32104d8359"
                },
                {
                  "fixed": "6030f8bd7902e9e276a0edc09bf11979e4e2bc2e"
                },
                {
                  "fixed": "e99c6873229fe0482e7ceb7d5600e32d623ed9d9"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-53120.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.14.0"
                },
                {
                  "fixed": "5.15.174"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.119"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.63"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.11.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-53120.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.377454183Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/06dc488a593020bd2f006798557d2a32104d8359",
        "https://git.kernel.org/stable/c/0c7c70ff8b696cfedba350411dca736361ef9a0f",
        "https://git.kernel.org/stable/c/6030f8bd7902e9e276a0edc09bf11979e4e2bc2e",
        "https://git.kernel.org/stable/c/882f392d9e3649557e71efd78ae20c86039ffb7c",
        "https://git.kernel.org/stable/c/e99c6873229fe0482e7ceb7d5600e32d623ed9d9",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53120.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-53120",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53120.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-53120",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 500259,
  "published_at": "2024-12-02T13:44:51.098+00:00"
}