{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23281",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.992Z",
        "datePublished": "2026-03-25T10:26:41.844Z",
        "dateUpdated": "2026-05-11T22:03:49.865Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:03:49.865Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix use-after-free in lbs_free_adapter()\n\nThe lbs_free_adapter() function uses timer_delete() (non-synchronous)\nfor both command_timer and tx_lockup_timer before the structure is\nfreed. This is incorrect because timer_delete() does not wait for\nany running timer callback to complete.\n\nIf a timer callback is executing when lbs_free_adapter() is called,\nthe callback will access freed memory since lbs_cfg_free() frees the\ncontaining structure immediately after lbs_free_adapter() returns.\n\nBoth timer callbacks (lbs_cmd_timeout_handler and lbs_tx_lockup_handler)\naccess priv->driver_lock, priv->cur_cmd, priv->dev, and other fields,\nwhich would all be use-after-free violations.\n\nUse timer_delete_sync() instead to ensure any running timer callback\nhas completed before returning.\n\nThis bug was introduced in commit 8f641d93c38a (\"libertas: detect TX\nlockups and reset hardware\") where del_timer() was used instead of\ndel_timer_sync() in the cleanup path. The command_timer has had the\nsame issue since the driver was first written."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/marvell/libertas/main.c"
                    ],
                    "versions": [
                        {
                            "version": "954ee164f4f4598afc172c0ec3865d0352e55a0b",
                            "lessThan": "b15e0fa7adb4de3a03aee9e6fc4d83e5cf0a65e4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "954ee164f4f4598afc172c0ec3865d0352e55a0b",
                            "lessThan": "09f3c30ab3b1371eaf9676a1b8add57bca763083",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "954ee164f4f4598afc172c0ec3865d0352e55a0b",
                            "lessThan": "3f9dec4a6d95d7f1f5e9e9dfdfa173c053bba8dc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "954ee164f4f4598afc172c0ec3865d0352e55a0b",
                            "lessThan": "3c5c818c78b03a1725f3dcd566865c77b48dd3a6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "954ee164f4f4598afc172c0ec3865d0352e55a0b",
                            "lessThan": "d0155fe68f31b339961cf2d4f92937d57e9384e6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "954ee164f4f4598afc172c0ec3865d0352e55a0b",
                            "lessThan": "ed7d30f90b77f73a47498686ede83f622b7e4f0d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "954ee164f4f4598afc172c0ec3865d0352e55a0b",
                            "lessThan": "a9f55b14486426d907459bced5825a25063bd922",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "954ee164f4f4598afc172c0ec3865d0352e55a0b",
                            "lessThan": "03cc8f90d0537fcd4985c3319b4fafbf2e3fb1f0",
                            "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/wireless/marvell/libertas/main.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.24",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.24",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.167",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.130",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.78",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.17",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.7",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.24",
                                    "versionEndExcluding": "5.10.253"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.24",
                                    "versionEndExcluding": "5.15.203"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "7.0"
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b15e0fa7adb4de3a03aee9e6fc4d83e5cf0a65e4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/09f3c30ab3b1371eaf9676a1b8add57bca763083"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3f9dec4a6d95d7f1f5e9e9dfdfa173c053bba8dc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3c5c818c78b03a1725f3dcd566865c77b48dd3a6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d0155fe68f31b339961cf2d4f92937d57e9384e6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ed7d30f90b77f73a47498686ede83f622b7e4f0d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a9f55b14486426d907459bced5825a25063bd922"
                },
                {
                    "url": "https://git.kernel.org/stable/c/03cc8f90d0537fcd4985c3319b4fafbf2e3fb1f0"
                }
            ],
            "title": "wifi: libertas: fix use-after-free in lbs_free_adapter()",
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}