{"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": "2025-12-09T00:00:58.582Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-09T00:00:58.582Z"}, "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"}, {"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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{"cveTags": [], "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."}], "id": "CVE-2023-53802", "lastModified": "2025-12-09T18:37:13.640", "metrics": {}, "published": "2025-12-09T01:16:51.997", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/564bc2222bf50eb6cdee715a5431bf4dc9f923c1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5a84e51f72580fc70066b03f3dac38421e702a0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68171c006c8645a3e0293a6c3e6037c6538ac1c5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b11f95f65cc52ee3a756e6f6a88df37a203e25bd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bbfababb4f899fe1556eac195f9774b6fe675fb6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c0c0614f143b568cd0e9525d53cf12e5dcd11987"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ec246dfe006b2a8f36353f7489e4f525114db9a5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function", "id": "2420288", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420288"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function\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.\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."], "name": "CVE-2023-53802", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53802\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53802\nhttps://lore.kernel.org/linux-cve-announce/2025120943-CVE-2023-53802-4ffb@gregkh/T"], "threat_severity": "Important"}