{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90416",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.813Z",
        "datePublished": "2026-09-17T16:09:41.372Z",
        "dateUpdated": "2026-10-19T09:03:20.401Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:03:20.401Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs\n\nget_param() reads a congestion parameter as a u32 but formats it with the\nsigned \"%d\" into an 11-byte stack buffer. A value with bit 31 set, such as\n0x80000000, renders as \"-2147483648\\n\" whose full length is 12. snprintf()\nstores only 11 bytes yet returns 12, so simple_read_from_buffer() treats 12\nbytes as valid and reads one byte past lbuf[].\n\nSize the buffer for the widest unsigned decimal, format with \"%u\" to match\nthe u32, and use scnprintf() so the length passed to\nsimple_read_from_buffer() reflects the bytes actually stored."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/hw/mlx5/cong.c"
                    ],
                    "versions": [
                        {
                            "version": "4a2da0b8c0782816f3ae6846ae7942fcbb0f8172",
                            "lessThan": "1c5b4f76cd73372c5a8a4c91c95d5a31f141e091",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a2da0b8c0782816f3ae6846ae7942fcbb0f8172",
                            "lessThan": "06b62758f81e27ca4c81201c22e3436c6d9ac894",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a2da0b8c0782816f3ae6846ae7942fcbb0f8172",
                            "lessThan": "d809cf3f0ed9255abfc73c4730bcf187151422af",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a2da0b8c0782816f3ae6846ae7942fcbb0f8172",
                            "lessThan": "0b0122fcc923a0271130f5fb71af2cd7e20434d9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a2da0b8c0782816f3ae6846ae7942fcbb0f8172",
                            "lessThan": "ce8dfd32a33b578c3abf178f67b4c8d36854f041",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a2da0b8c0782816f3ae6846ae7942fcbb0f8172",
                            "lessThan": "4599311e78e88c893ad551aca622de2bfdf1c31f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a2da0b8c0782816f3ae6846ae7942fcbb0f8172",
                            "lessThan": "c75ee076fa09778a2f9602a972dade4a0b0785f7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a2da0b8c0782816f3ae6846ae7942fcbb0f8172",
                            "lessThan": "03826bc1fa6c90405bf05831f2b501a8368dcd27",
                            "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/infiniband/hw/mlx5/cong.c"
                    ],
                    "versions": [
                        {
                            "version": "4.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "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": "4.14",
                                    "versionEndExcluding": "5.10.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1c5b4f76cd73372c5a8a4c91c95d5a31f141e091"
                },
                {
                    "url": "https://git.kernel.org/stable/c/06b62758f81e27ca4c81201c22e3436c6d9ac894"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d809cf3f0ed9255abfc73c4730bcf187151422af"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b0122fcc923a0271130f5fb71af2cd7e20434d9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ce8dfd32a33b578c3abf178f67b4c8d36854f041"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4599311e78e88c893ad551aca622de2bfdf1c31f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c75ee076fa09778a2f9602a972dade4a0b0785f7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/03826bc1fa6c90405bf05831f2b501a8368dcd27"
                }
            ],
            "title": "RDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs",
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