{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98015",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:19:56.069Z",
        "datePublished": "2026-09-25T10:23:37.724Z",
        "dateUpdated": "2026-10-19T09:12:20.637Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:12:20.637Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put\n\nIn mlx5_eswitch_termtbl_put(), the zero-ref cleanup check reads\ntt->ref_count after termtbl_mutex has been released.  Two concurrent\ncallers on the same mlx5_termtbl_handle race: one decrements ref_count\nto zero, removes the hash entry, and calls kfree(tt) while the other\nhas already dropped the mutex and is about to evaluate\nif (!tt->ref_count), producing a use-after-free.\n\nFix this by capturing the result of the decrement into a stack-local\nlast variable before dropping the mutex.  The cleanup decision is now\nmade entirely under termtbl_mutex, and tt is not touched after\nkfree."
                }
            ],
            "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/eswitch_offloads_termtbl.c"
                    ],
                    "versions": [
                        {
                            "version": "10caabdaad5ace85577a453da97d1f8d3b944427",
                            "lessThan": "e3ee194a790896fa92fea20b5385a354be2f2c12",
                            "status": "affected",
                            "versionType": "git"
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                        {
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                            "lessThan": "b1398c9dfb5d3d4faaf6905ff7d98110a5d2c797",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "10caabdaad5ace85577a453da97d1f8d3b944427",
                            "lessThan": "92f581cac93a71723456ac79ef54d9f60a251b42",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "10caabdaad5ace85577a453da97d1f8d3b944427",
                            "lessThan": "a5833fdf53350b8b95a558fcf0056ddb1c0fe154",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "10caabdaad5ace85577a453da97d1f8d3b944427",
                            "lessThan": "304ea40ef4561671503c36e47da44a0a31b71e36",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "10caabdaad5ace85577a453da97d1f8d3b944427",
                            "lessThan": "e393789e92310d7c66f57c876101779c90816a12",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "10caabdaad5ace85577a453da97d1f8d3b944427",
                            "lessThan": "18b2969073879b9cce24e1a78b118bdad54518d1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "10caabdaad5ace85577a453da97d1f8d3b944427",
                            "lessThan": "7ee07f601f8f507c9faf25c68a49396ab8950596",
                            "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/eswitch_offloads_termtbl.c"
                    ],
                    "versions": [
                        {
                            "version": "5.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.271",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e3ee194a790896fa92fea20b5385a354be2f2c12"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b1398c9dfb5d3d4faaf6905ff7d98110a5d2c797"
                },
                {
                    "url": "https://git.kernel.org/stable/c/92f581cac93a71723456ac79ef54d9f60a251b42"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a5833fdf53350b8b95a558fcf0056ddb1c0fe154"
                },
                {
                    "url": "https://git.kernel.org/stable/c/304ea40ef4561671503c36e47da44a0a31b71e36"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e393789e92310d7c66f57c876101779c90816a12"
                },
                {
                    "url": "https://git.kernel.org/stable/c/18b2969073879b9cce24e1a78b118bdad54518d1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7ee07f601f8f507c9faf25c68a49396ab8950596"
                }
            ],
            "title": "net/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put",
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