{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49642",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T02:21:30.431Z",
        "datePublished": "2025-02-26T02:23:49.154Z",
        "dateUpdated": "2026-05-11T19:03:53.034Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:03:53.034Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: dwc-qos: Disable split header for Tegra194\n\nThere is a long-standing issue with the Synopsys DWC Ethernet driver\nfor Tegra194 where random system crashes have been observed [0]. The\nproblem occurs when the split header feature is enabled in the stmmac\ndriver. In the bad case, a larger than expected buffer length is\nreceived and causes the calculation of the total buffer length to\noverflow. This results in a very large buffer length that causes the\nkernel to crash. Why this larger buffer length is received is not clear,\nhowever, the feedback from the NVIDIA design team is that the split\nheader feature is not supported for Tegra194. Therefore, disable split\nheader support for Tegra194 to prevent these random crashes from\noccurring.\n\n[0] https://lore.kernel.org/linux-tegra/b0b17697-f23e-8fa5-3757-604a86f3a095@nvidia.com/"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c"
                    ],
                    "versions": [
                        {
                            "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
                            "lessThan": "2968830c9b47ce093237483c6207c61065712386",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
                            "lessThan": "9cc8edc571b871d974b3289868553f9ce544aba6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
                            "lessThan": "d5c315a787652c35045044877a249f7d5c8a4104",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
                            "lessThan": "cfa4caf3e881ad6dd366c903c34f1c7f21b857ab",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
                            "lessThan": "029c1c2059e9c4b38f97a06204cdecd10cfbeb8a",
                            "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/stmicro/stmmac/dwmac-dwc-qos-eth.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.207",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.132",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.56",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18.13",
                            "lessThanOrEqual": "5.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19",
                            "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": "5.4",
                                    "versionEndExcluding": "5.4.207"
                                },
                                {
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                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "5.19"
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2968830c9b47ce093237483c6207c61065712386"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9cc8edc571b871d974b3289868553f9ce544aba6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d5c315a787652c35045044877a249f7d5c8a4104"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cfa4caf3e881ad6dd366c903c34f1c7f21b857ab"
                },
                {
                    "url": "https://git.kernel.org/stable/c/029c1c2059e9c4b38f97a06204cdecd10cfbeb8a"
                }
            ],
            "title": "net: stmmac: dwc-qos: Disable split header for Tegra194",
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}