{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-81014",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.813Z",
        "datePublished": "2026-09-11T19:43:03.397Z",
        "dateUpdated": "2026-10-19T08:46:39.559Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:46:39.559Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: hp-bioscfg: fix heap OOB read in sk_store() and kek_store()\n\nsk_store() and kek_store() strip a trailing newline from the sysfs\nwrite before allocating the key buffer:\n\n\tlength = count;\n\tif (buf[length - 1] == '\\n')\n\t\tlength--;\n\tbioscfg_drv.spm_data.signing_key = kmemdup(buf, length, GFP_KERNEL);\n\nbut then pass the original \"count\" (not \"length\") as the copy size to\nhp_wmi_perform_query(), which memcpy()s that many bytes out of the\n\"length\"-sized allocation, reading one byte past it whenever the write\nends in a newline, the normal case for a shell \"echo\" into sysfs.\n\nKASAN confirms this directly:\n\n  BUG: KASAN: slab-out-of-bounds in hp_wmi_perform_query+0x1e9/0x460 [hp_bioscfg]\n  Read of size 28 at addr ffff88813c8e2b80 by task python3/16022\n  ...\n  sk_store+0xa7/0x240 [hp_bioscfg]\n  kernfs_fop_write_iter+0x3e1/0x5d0\n  ...\n  The buggy address is located 0 bytes inside of\n  allocated 27-byte region [ffff88813c8e2b80, ffff88813c8e2b9b)\n\nReproduced identically for kek_store, and at multiple write sizes\n(28, 57, 201 bytes), each time reading exactly one byte past a\nkmemdup() allocation one byte smaller than the write.\n\nFix by passing \"length\" instead of \"count\" to hp_wmi_perform_query()\nin both functions."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/platform/x86/hp/hp-bioscfg/spmobj-attributes.c"
                    ],
                    "versions": [
                        {
                            "version": "b2715aa2e1352c0060b9dcba57a2e465bbfbcd68",
                            "lessThan": "81db79fed115640736188e56595b1e9aec317d5b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b2715aa2e1352c0060b9dcba57a2e465bbfbcd68",
                            "lessThan": "4c6374dcb270d12907b880cf82a5a5ef21785fc3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b2715aa2e1352c0060b9dcba57a2e465bbfbcd68",
                            "lessThan": "7cd8fe01aba303a2382db0966eb6c8ab41d5f3c2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b2715aa2e1352c0060b9dcba57a2e465bbfbcd68",
                            "lessThan": "67b60703d7d8af1ca0e49f72e1bdb1ccecd41b5b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b2715aa2e1352c0060b9dcba57a2e465bbfbcd68",
                            "lessThan": "a7508c7959ff8d037327d377ed21a9c0eabe4674",
                            "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/platform/x86/hp/hp-bioscfg/spmobj-attributes.c"
                    ],
                    "versions": [
                        {
                            "version": "6.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.109",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.50",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "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": "6.6",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
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                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "7.3"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/81db79fed115640736188e56595b1e9aec317d5b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4c6374dcb270d12907b880cf82a5a5ef21785fc3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7cd8fe01aba303a2382db0966eb6c8ab41d5f3c2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/67b60703d7d8af1ca0e49f72e1bdb1ccecd41b5b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a7508c7959ff8d037327d377ed21a9c0eabe4674"
                }
            ],
            "title": "platform/x86: hp-bioscfg: fix heap OOB read in sk_store() and kek_store()",
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