{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53720",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-22T13:21:37.347Z",
        "datePublished": "2025-10-22T13:23:52.123Z",
        "dateUpdated": "2026-05-11T19:50:33.183Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:50:33.183Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Release the label when replacing existing ct entry\n\nCited commit doesn't release the label mapping when replacing existing ct\nentry which leads to following memleak report:\n\nunreferenced object 0xffff8881854cf280 (size 96):\n  comm \"kworker/u48:74\", pid 23093, jiffies 4296664564 (age 175.944s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [<000000002722d368>] __kmalloc+0x4b/0x1c0\n    [<00000000cc44e18f>] mapping_add+0x6e8/0xc90 [mlx5_core]\n    [<000000003ad942a7>] mlx5_get_label_mapping+0x66/0xe0 [mlx5_core]\n    [<00000000266308ac>] mlx5_tc_ct_entry_create_mod_hdr+0x1c4/0xf50 [mlx5_core]\n    [<000000009a768b4f>] mlx5_tc_ct_entry_add_rule+0x16f/0xaf0 [mlx5_core]\n    [<00000000a178f3e5>] mlx5_tc_ct_block_flow_offload_add+0x10cb/0x1f90 [mlx5_core]\n    [<000000007b46c496>] mlx5_tc_ct_block_flow_offload+0x14a/0x630 [mlx5_core]\n    [<00000000a9a18ac5>] nf_flow_offload_tuple+0x1a3/0x390 [nf_flow_table]\n    [<00000000d0881951>] flow_offload_work_handler+0x257/0xd30 [nf_flow_table]\n    [<000000009e4935a4>] process_one_work+0x7c2/0x13e0\n    [<00000000f5cd36a7>] worker_thread+0x59d/0xec0\n    [<00000000baed1daf>] kthread+0x28f/0x330\n    [<0000000063d282a4>] ret_from_fork+0x1f/0x30\n\nFix the issue by correctly releasing the label mapping."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c"
                    ],
                    "versions": [
                        {
                            "version": "94ceffb48eac7692677d8093dcde6965b70c4b35",
                            "lessThan": "3db903a71f1f4bbf30baae166a4a49f2e8aceb61",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "94ceffb48eac7692677d8093dcde6965b70c4b35",
                            "lessThan": "8ac04a28144cfa89b61be518268233742c23d88d",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c"
                    ],
                    "versions": [
                        {
                            "version": "6.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3.2",
                            "lessThanOrEqual": "6.3.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.4",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.3.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.4"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3db903a71f1f4bbf30baae166a4a49f2e8aceb61"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8ac04a28144cfa89b61be518268233742c23d88d"
                }
            ],
            "title": "net/mlx5e: Release the label when replacing existing ct entry",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}