{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98196",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.324Z",
        "datePublished": "2026-10-06T08:44:35.616Z",
        "dateUpdated": "2026-10-19T09:15:27.411Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:15:27.411Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmsmac: fix UAF in brcms_free_timer()\n\nbrcms_free_timer() calls brcms_del_timer() which uses the non-synchronous\ncancel_delayed_work() to cancel the timer's underlying delayed work.  If\nthe work callback (_brcms_timer) is already running, cancel_delayed_work()\nreturns false without waiting, and brcms_free_timer() proceeds to kfree(t)\nwhile the callback still accesses t through container_of().\n\nAdd an explicit cancel_delayed_work_sync() after brcms_del_timer() to\nguarantee that any in-flight callback has completed before the timer\nstructure is freed."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c"
                    ],
                    "versions": [
                        {
                            "version": "5b435de0d786869c95d1962121af0d7df2542009",
                            "lessThan": "10eeb0b29fd7f52487c9ae573e8d79c210a0095d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5b435de0d786869c95d1962121af0d7df2542009",
                            "lessThan": "74acccc928851f69184271832d690607877122af",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5b435de0d786869c95d1962121af0d7df2542009",
                            "lessThan": "050d2486e8ed2c0a23b87249ccd23e8072721391",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5b435de0d786869c95d1962121af0d7df2542009",
                            "lessThan": "856dabd5f2617efb23c043be9e1b22a9e6e97c41",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5b435de0d786869c95d1962121af0d7df2542009",
                            "lessThan": "2a4841ff0b74b495cddd31ae324e922217fc2f13",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5b435de0d786869c95d1962121af0d7df2542009",
                            "lessThan": "1edb3ddd261e973a4d577c0547e63bfa25a8170d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5b435de0d786869c95d1962121af0d7df2542009",
                            "lessThan": "777cb6bba59e875b16a1d8897a483a5fecfcd5d2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5b435de0d786869c95d1962121af0d7df2542009",
                            "lessThan": "1eeca1d5e0920fbdad6449768fd2d4364e714180",
                            "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/broadcom/brcm80211/brcmsmac/mac80211_if.c"
                    ],
                    "versions": [
                        {
                            "version": "3.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.271",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.54",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.8",
                            "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": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.2",
                                    "versionEndExcluding": "5.10.271"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                {
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/10eeb0b29fd7f52487c9ae573e8d79c210a0095d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/74acccc928851f69184271832d690607877122af"
                },
                {
                    "url": "https://git.kernel.org/stable/c/050d2486e8ed2c0a23b87249ccd23e8072721391"
                },
                {
                    "url": "https://git.kernel.org/stable/c/856dabd5f2617efb23c043be9e1b22a9e6e97c41"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2a4841ff0b74b495cddd31ae324e922217fc2f13"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1edb3ddd261e973a4d577c0547e63bfa25a8170d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/777cb6bba59e875b16a1d8897a483a5fecfcd5d2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1eeca1d5e0920fbdad6449768fd2d4364e714180"
                }
            ],
            "title": "wifi: brcmsmac: fix UAF in brcms_free_timer()",
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}