{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-99043",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.387Z",
        "datePublished": "2026-10-23T12:22:07.372Z",
        "dateUpdated": "2026-10-30T12:41:15.899Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-30T12:41:15.899Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix metadata_dst refcount handling on representor teardown\n\nice_eswitch_release_repr() uses metadata_dst_free() to release the\nrepresentor's metadata_dst.  metadata_dst_free() directly frees the\nunderlying memory without checking the dst_entry refcount.\n\nWhen ice_eswitch_port_start_xmit() processes a packet, it takes a\nreference via dst_hold() and attaches the metadata_dst to the skb.\nIf the representor is torn down while packets are still queued on\nthe lower device (e.g. in a qdisc), the metadata_dst is freed while\nreferences are still held.\n\nUse dst_release() instead, which correctly decrements the refcount\nand only frees the object when all references are dropped.  The dst\nsubsystem already handles metadata_dst cleanup in dst_destroy() when\nDST_METADATA is set.\n\nOther drivers sharing this pattern (nfp, airoha, bnxt) already use\ndst_release() for their metadata_dst lifecycle."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/intel/ice/ice_eswitch.c"
                    ],
                    "versions": [
                        {
                            "version": "f5396b8a663f7a78ee5b75a47ee524b40795b265",
                            "lessThan": "41f0d9ab158fb51f34bded5f8a40918e4f70b2b6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5396b8a663f7a78ee5b75a47ee524b40795b265",
                            "lessThan": "1f263235651775f93c15d90c9f25c3f4a4ef6512",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5396b8a663f7a78ee5b75a47ee524b40795b265",
                            "lessThan": "6f5544f53f1e58ea8a49fb9f9158d5793b9205b0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5396b8a663f7a78ee5b75a47ee524b40795b265",
                            "lessThan": "beb05f484a1e4a5a66e3678e4b7f3147f651c080",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5396b8a663f7a78ee5b75a47ee524b40795b265",
                            "lessThan": "5e4d20db5179e83a4948927bc39e489a9a83256d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5396b8a663f7a78ee5b75a47ee524b40795b265",
                            "lessThan": "58858b8f14803a7eeac297b3ce20f3b21bf2ff66",
                            "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/intel/ice/ice_eswitch.c"
                    ],
                    "versions": [
                        {
                            "version": "5.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.191",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.113",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.57",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.11",
                            "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": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.1.191"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.12.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.18.57"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "7.2.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/41f0d9ab158fb51f34bded5f8a40918e4f70b2b6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1f263235651775f93c15d90c9f25c3f4a4ef6512"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6f5544f53f1e58ea8a49fb9f9158d5793b9205b0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/beb05f484a1e4a5a66e3678e4b7f3147f651c080"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5e4d20db5179e83a4948927bc39e489a9a83256d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/58858b8f14803a7eeac297b3ce20f3b21bf2ff66"
                }
            ],
            "title": "ice: fix metadata_dst refcount handling on representor teardown",
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}