{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53137",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.387Z",
        "datePublished": "2026-06-25T08:38:25.977Z",
        "dateUpdated": "2026-06-25T08:38:25.977Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-25T08:38:25.977Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Clamp HDMI HDCP2 rx_id_list read to buffer size\n\n[Why & How]\nDuring HDCP 2.x repeater authentication over HDMI, the driver reads the\nsink's RxStatus register and extracts a 10-bit message size field (max\nvalue 1023). This value is used as the read length for the ReceiverID\nlist without being clamped to the size of the destination buffer\nrx_id_list[177]. A malicious HDMI repeater could advertise a message\nsize larger than the buffer, causing an out-of-bounds write during the\nI2C read.\n\nClamp the read length in mod_hdcp_read_rx_id_list() to the size of the\nrx_id_list buffer, matching the approach already used in the DP branch.\n\n(cherry picked from commit 229212219e4247d9486f8ba41ef087358490be09)"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c"
                    ],
                    "versions": [
                        {
                            "version": "eff682f83c9c2030761e7536c5d97e1b20f71c15",
                            "lessThan": "3c4444aec06c74fbc05661f370954ac814963c38",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eff682f83c9c2030761e7536c5d97e1b20f71c15",
                            "lessThan": "91fb41218c413989d8b6c837748751454b452d68",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eff682f83c9c2030761e7536c5d97e1b20f71c15",
                            "lessThan": "964e50ef7b8f09815a7d05b8326af700f8d5bc96",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eff682f83c9c2030761e7536c5d97e1b20f71c15",
                            "lessThan": "79e0273272a05fb26f9b1e55bf1a52eefc3b7b35",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eff682f83c9c2030761e7536c5d97e1b20f71c15",
                            "lessThan": "bfba882cfcd08f6540f72f48e786b6404f5d2c5b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eff682f83c9c2030761e7536c5d97e1b20f71c15",
                            "lessThan": "1906064d50d194a145486e5caf3db3e708b6f6ef",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eff682f83c9c2030761e7536c5d97e1b20f71c15",
                            "lessThan": "98cfb7530ea91d8e5e928285cdce58e1131f6e83",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eff682f83c9c2030761e7536c5d97e1b20f71c15",
                            "lessThan": "f0f3981c43b32cadfe373d636d9e9ca522bb3702",
                            "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/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c"
                    ],
                    "versions": [
                        {
                            "version": "5.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.259",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.210",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.143",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.94",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.36",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.13",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "5.6",
                                    "versionEndExcluding": "5.10.259"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "5.15.210"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
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                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "6.12.94"
                                },
                                {
                                    "vulnerable": true,
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                                    "versionStartIncluding": "5.6",
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                                    "versionStartIncluding": "5.6",
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                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3c4444aec06c74fbc05661f370954ac814963c38"
                },
                {
                    "url": "https://git.kernel.org/stable/c/91fb41218c413989d8b6c837748751454b452d68"
                },
                {
                    "url": "https://git.kernel.org/stable/c/964e50ef7b8f09815a7d05b8326af700f8d5bc96"
                },
                {
                    "url": "https://git.kernel.org/stable/c/79e0273272a05fb26f9b1e55bf1a52eefc3b7b35"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bfba882cfcd08f6540f72f48e786b6404f5d2c5b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1906064d50d194a145486e5caf3db3e708b6f6ef"
                },
                {
                    "url": "https://git.kernel.org/stable/c/98cfb7530ea91d8e5e928285cdce58e1131f6e83"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f0f3981c43b32cadfe373d636d9e9ca522bb3702"
                }
            ],
            "title": "drm/amd/display: Clamp HDMI HDCP2 rx_id_list read to buffer size",
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}