{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-40263",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.182Z",
        "datePublished": "2025-12-04T16:08:23.327Z",
        "dateUpdated": "2026-06-02T13:00:15.067Z"
    },
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                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:45:57.409Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: cros_ec_keyb - fix an invalid memory access\n\nIf cros_ec_keyb_register_matrix() isn't called (due to\n`buttons_switches_only`) in cros_ec_keyb_probe(), `ckdev->idev` remains\nNULL.  An invalid memory access is observed in cros_ec_keyb_process()\nwhen receiving an EC_MKBP_EVENT_KEY_MATRIX event in cros_ec_keyb_work()\nin such case.\n\n  Unable to handle kernel read from unreadable memory at virtual address 0000000000000028\n  ...\n  x3 : 0000000000000000 x2 : 0000000000000000\n  x1 : 0000000000000000 x0 : 0000000000000000\n  Call trace:\n  input_event\n  cros_ec_keyb_work\n  blocking_notifier_call_chain\n  ec_irq_thread\n\nIt's still unknown about why the kernel receives such malformed event,\nin any cases, the kernel shouldn't access `ckdev->idev` and friends if\nthe driver doesn't intend to initialize them."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/input/keyboard/cros_ec_keyb.c"
                    ],
                    "versions": [
                        {
                            "version": "ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0",
                            "lessThan": "d74864291cb8bd784d44d1d02e87109cf88666bb",
                            "status": "affected",
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                        {
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                            "lessThan": "9cf59f4724a9ee06ebb06c76b8678ac322e850b7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0",
                            "lessThan": "6d81068685154535af06163eb585d6d9663ec7ec",
                            "status": "affected",
                            "versionType": "git"
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                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/input/keyboard/cros_ec_keyb.c"
                    ],
                    "versions": [
                        {
                            "version": "5.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.159",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.118",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.60",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.10",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
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                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d74864291cb8bd784d44d1d02e87109cf88666bb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9cf59f4724a9ee06ebb06c76b8678ac322e850b7"
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                {
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                    "url": "https://git.kernel.org/stable/c/2d251c15c27e2dd16d6318425d2f7260cbd47d39"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e08969c4d65ac31297fcb4d31d4808c789152f68"
                }
            ],
            "title": "Input: cros_ec_keyb - fix an invalid memory access",
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