{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93149",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-17T16:02:15.088Z",
        "datePublished": "2026-09-17T16:11:46.136Z",
        "dateUpdated": "2026-10-19T09:06:21.596Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:06:21.596Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211_hwsim: avoid NULL skb in stop queue drain\n\nmac80211_hwsim_stop() drops any frames left in data->pending. The loop\ncurrently checks skb_queue_empty() and then dequeues separately.\n\nThat split is racy with TX status handling, which can remove a pending\nframe under the queue lock. If the last entry is removed after the empty\ncheck, skb_dequeue() returns NULL and the stop path passes that NULL skb\nto ieee80211_free_txskb().\n\nUse skb_dequeue() as the loop condition instead. The dequeue result is the\nobject that stop owns and frees, and a concurrent status completion that\nempties the queue simply makes the loop terminate."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/virtual/mac80211_hwsim_main.c"
                    ],
                    "versions": [
                        {
                            "version": "bd18de517923903a177508fc8813f44e717b1c00",
                            "lessThan": "d131027054a8dd922dda01fe8d381abe5af4970b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bd18de517923903a177508fc8813f44e717b1c00",
                            "lessThan": "c40ba47f2ba1951cb32ea048667ed014d36a5749",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bd18de517923903a177508fc8813f44e717b1c00",
                            "lessThan": "2817431a61557f46dc63077b7cc126bc906c242e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bd18de517923903a177508fc8813f44e717b1c00",
                            "lessThan": "e7fccad2c8e6ef6bbafe509c95869d161d0f466b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bd18de517923903a177508fc8813f44e717b1c00",
                            "lessThan": "1c2a4ab6efa26415dd131b8c222e7893fda03435",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bd18de517923903a177508fc8813f44e717b1c00",
                            "lessThan": "158438cd6ad69d6dd7d871582c38baf22169fede",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78bf3c6131488b00386acd9aff1ea4e6c44fa38e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a9028333001f793b2724e8be42fce3336de2cf1c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7019c9f385b264a2d6f685028268422d55087e37",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.4.129",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.47",
                            "lessThan": "5.11",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.12.14",
                            "lessThan": "5.13",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/virtual/mac80211_hwsim_main.c"
                    ],
                    "versions": [
                        {
                            "version": "5.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.13",
                            "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": "5.13",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.6.157"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "7.2.6"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "7.3"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4.129"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10.47"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12.14"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d131027054a8dd922dda01fe8d381abe5af4970b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c40ba47f2ba1951cb32ea048667ed014d36a5749"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2817431a61557f46dc63077b7cc126bc906c242e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e7fccad2c8e6ef6bbafe509c95869d161d0f466b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1c2a4ab6efa26415dd131b8c222e7893fda03435"
                },
                {
                    "url": "https://git.kernel.org/stable/c/158438cd6ad69d6dd7d871582c38baf22169fede"
                }
            ],
            "title": "wifi: mac80211_hwsim: avoid NULL skb in stop queue drain",
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}