{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53802",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-08T23:58:35.275Z",
        "datePublished": "2025-12-09T00:00:58.582Z",
        "dateUpdated": "2026-05-11T19:51:48.668Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:51:48.668Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function\n\nIt is stated that ath9k_htc_rx_msg() either frees the provided skb or\npasses its management to another callback function. However, the skb is\nnot freed in case there is no another callback function, and Syzkaller was\nable to cause a memory leak. Also minor comment fix.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/ath/ath9k/htc_hst.c"
                    ],
                    "versions": [
                        {
                            "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                            "lessThan": "b11f95f65cc52ee3a756e6f6a88df37a203e25bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                            "lessThan": "68171c006c8645a3e0293a6c3e6037c6538ac1c5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                            "lessThan": "564bc2222bf50eb6cdee715a5431bf4dc9f923c1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                            "lessThan": "ec246dfe006b2a8f36353f7489e4f525114db9a5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                            "lessThan": "c0c0614f143b568cd0e9525d53cf12e5dcd11987",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                            "lessThan": "5a84e51f72580fc70066b03f3dac38421e702a0b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                            "lessThan": "bbfababb4f899fe1556eac195f9774b6fe675fb6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                            "lessThan": "9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69",
                            "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/ath/ath9k/htc_hst.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.35",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.35",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.308",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.276",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.235",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.173",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.99",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.16",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.3",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "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": "2.6.35",
                                    "versionEndExcluding": "4.14.308"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.35",
                                    "versionEndExcluding": "4.19.276"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.35",
                                    "versionEndExcluding": "5.4.235"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.35",
                                    "versionEndExcluding": "5.10.173"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.35",
                                    "versionEndExcluding": "5.15.99"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.35",
                                    "versionEndExcluding": "6.1.16"
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.35",
                                    "versionEndExcluding": "6.2.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.35",
                                    "versionEndExcluding": "6.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b11f95f65cc52ee3a756e6f6a88df37a203e25bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/68171c006c8645a3e0293a6c3e6037c6538ac1c5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/564bc2222bf50eb6cdee715a5431bf4dc9f923c1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ec246dfe006b2a8f36353f7489e4f525114db9a5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c0c0614f143b568cd0e9525d53cf12e5dcd11987"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5a84e51f72580fc70066b03f3dac38421e702a0b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bbfababb4f899fe1556eac195f9774b6fe675fb6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69"
                }
            ],
            "title": "wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function",
            "x_generator": {
                "engine": "bippy-1.2.0"
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}