{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68353", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.385Z", "datePublished": "2026-08-10T12:03:30.330Z", "dateUpdated": "2026-08-13T22:43:43.340Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-13T22:43:43.340Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler\n\nThe firmware-controlled num_msg field (u8, 0-255) drives the loop in\nath6kl_wmi_tx_complete_event_rx() without validation against the buffer\nlength. This allows out-of-bounds reads of up to 1020 bytes past the\nWMI event buffer when the firmware sends an inflated num_msg.\n\nAdd a check that the buffer is large enough to hold the fixed struct\nand the num_msg variable-length entries."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "baseScore": 8.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - The vulnerable handler parses WMI control events delivered by the ath6kl AR600x wireless firmware over SDIO/USB; an attacker on the same wireless segment who subverts or influences the wireless device's firmware supplies the malformed event, matching the adjacent-network vector used for other ath driver event-parsing flaws.\nAC:L - Triggering requires only a WMI_TX_COMPLETE_EVENTID event whose payload is shorter than num_msg * 4 bytes; the loop bound is taken directly from the event with no validation, so the read happens deterministically every time.\nPR:N - The event is processed in the driver's asynchronous control-message receive path with no capability check, no syscall entry, and no authentication or association gate; the attacker needs no credentials on the target system.\nUI:N - The WMI event is handled automatically by the driver as soon as the interface is running; no victim action such as opening a file or issuing a command is needed.\nS:U - The out-of-bounds read stays within the kernel's own memory and security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Up to 1020 bytes past the event buffer are read and the contents are emitted through ath6kl_dbg() into the kernel log on debug builds, disclosing adjacent kernel heap data well beyond a small bounded read.\nI:N - The loop only reads and prints the out-of-bounds entries; there is no write to kernel memory and no attacker-controlled pointer is dereferenced for modification.\nA:H - The read can walk past the end of the slab allocation into unmapped or redzoned memory, producing an oops or a KASAN panic on hardened/debug kernels and thus a full loss of availability."}]}], "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/ath6kl/wmi.c"], "versions": [{"version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "lessThan": "69ac7ba3a3df6654e7daa82674575a8c4a1a63ea", "status": "affected", "versionType": "git"}, {"version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "lessThan": "289edc3c71344b89e6522891147cfb8f61b088bb", "status": "affected", "versionType": "git"}, {"version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "lessThan": "eb636fbc443149b3501c3f97e26225ddcb314a0f", "status": "affected", "versionType": "git"}, {"version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "lessThan": "c38b0d5c661951b5dd082bdf31f8a57a0ce6e540", "status": "affected", "versionType": "git"}, {"version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "lessThan": "3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495", "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/ath6kl/wmi.c"], "versions": [{"version": "3.2", "status": "affected"}, {"version": "0", "lessThan": "3.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc5", "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": "3.2", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.2-rc5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/69ac7ba3a3df6654e7daa82674575a8c4a1a63ea"}, {"url": "https://git.kernel.org/stable/c/289edc3c71344b89e6522891147cfb8f61b088bb"}, {"url": "https://git.kernel.org/stable/c/eb636fbc443149b3501c3f97e26225ddcb314a0f"}, {"url": "https://git.kernel.org/stable/c/c38b0d5c661951b5dd082bdf31f8a57a0ce6e540"}, {"url": "https://git.kernel.org/stable/c/3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495"}], "title": "wifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/ath/ath6kl/wmi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "69ac7ba3a3df6654e7daa82674575a8c4a1a63ea", "status": "affected", "version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "versionType": "git"}, {"lessThan": "289edc3c71344b89e6522891147cfb8f61b088bb", "status": "affected", "version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "versionType": "git"}, {"lessThan": "eb636fbc443149b3501c3f97e26225ddcb314a0f", "status": "affected", "version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "versionType": "git"}, {"lessThan": "c38b0d5c661951b5dd082bdf31f8a57a0ce6e540", "status": "affected", "version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "versionType": "git"}, {"lessThan": "3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495", "status": "affected", "version": "bdcd81707973cf8aa9305337166f8ee842a050d4", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/ath/ath6kl/wmi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.2"}, {"lessThan": "3.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc5", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler\n\nThe firmware-controlled num_msg field (u8, 0-255) drives the loop in\nath6kl_wmi_tx_complete_event_rx() without validation against the buffer\nlength. This allows out-of-bounds reads of up to 1020 bytes past the\nWMI event buffer when the firmware sends an inflated num_msg.\n\nAdd a check that the buffer is large enough to hold the fixed struct\nand the num_msg variable-length entries."}], "id": "CVE-2026-68353", "lastModified": "2026-08-13T23:17:31.907", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-10T13:20:27.567", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/289edc3c71344b89e6522891147cfb8f61b088bb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/69ac7ba3a3df6654e7daa82674575a8c4a1a63ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c38b0d5c661951b5dd082bdf31f8a57a0ce6e540"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eb636fbc443149b3501c3f97e26225ddcb314a0f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: ath6kl Wi-Fi driver out-of-bounds read due to improper input validation", "id": "2513367", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513367"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.8", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler\nThe firmware-controlled num_msg field (u8, 0-255) drives the loop in\nath6kl_wmi_tx_complete_event_rx() without validation against the buffer\nlength. This allows out-of-bounds reads of up to 1020 bytes past the\nWMI event buffer when the firmware sends an inflated num_msg.\nAdd a check that the buffer is large enough to hold the fixed struct\nand the num_msg variable-length entries.", "A flaw was found in the Linux kernel's ath6kl Wi-Fi driver. The `ath6kl_wmi_tx_complete_event_rx()` function, responsible for handling Wi-Fi messages, does not properly validate the `num_msg` field provided by the firmware against the buffer length. A malicious or compromised firmware could send an inflated `num_msg` value, leading to an out-of-bounds read of up to 1020 bytes past the allocated buffer. This could result in information disclosure or potentially a denial of service."], "name": "CVE-2026-68353", "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": "Not affected", "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"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:03:30Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68353\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68353\nhttps://git.kernel.org/stable/c/289edc3c71344b89e6522891147cfb8f61b088bb\nhttps://git.kernel.org/stable/c/3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495\nhttps://git.kernel.org/stable/c/69ac7ba3a3df6654e7daa82674575a8c4a1a63ea\nhttps://git.kernel.org/stable/c/c38b0d5c661951b5dd082bdf31f8a57a0ce6e540\nhttps://git.kernel.org/stable/c/eb636fbc443149b3501c3f97e26225ddcb314a0f"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bdcd81707973cf8aa9305337166f8ee842a050d4,69ac7ba3a3df6654e7daa82674575a8c4a1a63ea)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bdcd81707973cf8aa9305337166f8ee842a050d4,289edc3c71344b89e6522891147cfb8f61b088bb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bdcd81707973cf8aa9305337166f8ee842a050d4,eb636fbc443149b3501c3f97e26225ddcb314a0f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bdcd81707973cf8aa9305337166f8ee842a050d4,c38b0d5c661951b5dd082bdf31f8a57a0ce6e540)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bdcd81707973cf8aa9305337166f8ee842a050d4,3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,3.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-10T15:45:03.652348+00:00", "updated": "2026-08-14T01:30:04.461486+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}