CVE-2026-89620

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89620", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.736Z", "datePublished": "2026-09-11T19:45:18.758Z", "dateUpdated": "2026-10-19T08:49:52.704Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:49:52.704Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: intel-thc-hid: intel-quickspi: validate report size before copy\n\nwrite_cmd_to_txdma() builds an output report in qsdev->report_buf, a heap\nbuffer allocated in quickspi_alloc_report_buf() to the device-descriptor\nderived max_report_len (a few hundred bytes for a touch controller). It\ncopies the caller-supplied report into that buffer:\n\n memcpy(write_buf->content, report_buf, report_buf_len);\n\nThe HID core caps a report at HID_MAX_BUFFER_SIZE (16384) by default, and\nquickspi_hid_ll_driver does not set max_buffer_size, so the length reaches\nthe driver unbounded. A hidraw SET_REPORT/SET_FEATURE ioctl carrying a\nreport larger than max_report_len therefore overflows report_buf with\nattacker-controlled length and content.\n\nRecord the report_buf allocation size and reject reports that do not fit\nbefore copying, matching the equivalent guard in the intel-quicki2c\nsibling (quicki2c_init_write_buf()) and the hid-goodix-spi fix.\n\nwrite_cmd_to_txdma() writes the output report header ahead of the content\nin the same buffer, so size the allocation to cover the header as well.\nThat keeps the added bound from rejecting a maximum-sized report."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - An unprivileged local process reaches write_cmd_to_txdma() via hidraw write() or HIDIOCSOUTPUT/HIDIOCSFEATURE ioctls on the Intel THC HIDSPI touch controller's /dev/hidraw node; this is an onboard PCI device, not a network or USB-plug path.\nAC:L - A single SET_REPORT/SET_FEATURE with a length between the device-descriptor max_report_len (typically a few hundred bytes) and HID_MAX_BUFFER_SIZE (16384) deterministically overflows report_buf with attacker-chosen bytes; no race or uninfluenced condition is required.\nPR:L - hidraw_open() performs no capability or namespace checks, and systemd uaccess grants the seated user access to /dev/hidraw*, so a normal unprivileged local account can trigger the overflow.\nUI:N - The attacker opens the hidraw node and issues the ioctl or write themselves; no separate victim action is required.\nS:U - The overflow corrupts kernel heap in the host HID/THC driver and any resulting privilege escalation stays within the same kernel security authority.\nC:H - The memcpy writes attacker-controlled data past a small heap buffer (up to ~16KB), which can corrupt adjacent objects and be turned into an arbitrary kernel read primitive.\nI:H - The same attacker-controlled heap overflow can overwrite neighboring heap metadata and objects, enabling an arbitrary write and kernel control-flow hijack.\nA:H - Out-of-bounds heap writes of this size reliably cause kernel oops, panic, or SLUB corruption, and the request can be repeated at will."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hid/intel-thc-hid/intel-quickspi/pci-quickspi.c", "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-dev.h", "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.c"], "versions": [{"version": "9d8d51735a3af40b722346931a6a1e50227df4b5", "lessThan": "6fcefe71aeb524f6e77fe586fe85d873745e917c", "status": "affected", "versionType": "git"}, {"version": "9d8d51735a3af40b722346931a6a1e50227df4b5", "lessThan": "ee8ad1bb1e96164d51089b1182f1bd5f187e7baa", "status": "affected", "versionType": "git"}, {"version": "9d8d51735a3af40b722346931a6a1e50227df4b5", "lessThan": "a59cf84441f9a17323c89452cec2bf16724c48a9", "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/hid/intel-thc-hid/intel-quickspi/pci-quickspi.c", "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-dev.h", "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.c"], "versions": [{"version": "6.14", "status": "affected"}, {"version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "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": "6.14", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6fcefe71aeb524f6e77fe586fe85d873745e917c"}, {"url": "https://git.kernel.org/stable/c/ee8ad1bb1e96164d51089b1182f1bd5f187e7baa"}, {"url": "https://git.kernel.org/stable/c/a59cf84441f9a17323c89452cec2bf16724c48a9"}], "title": "HID: intel-thc-hid: intel-quickspi: validate report size before copy", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/hid/intel-thc-hid/intel-quickspi/pci-quickspi.c", "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-dev.h", "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6fcefe71aeb524f6e77fe586fe85d873745e917c", "status": "affected", "version": "9d8d51735a3af40b722346931a6a1e50227df4b5", "versionType": "git"}, {"lessThan": "ee8ad1bb1e96164d51089b1182f1bd5f187e7baa", "status": "affected", "version": "9d8d51735a3af40b722346931a6a1e50227df4b5", "versionType": "git"}, {"lessThan": "a59cf84441f9a17323c89452cec2bf16724c48a9", "status": "affected", "version": "9d8d51735a3af40b722346931a6a1e50227df4b5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/hid/intel-thc-hid/intel-quickspi/pci-quickspi.c", "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-dev.h", "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.14"}, {"lessThan": "6.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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\nHID: intel-thc-hid: intel-quickspi: validate report size before copy\n\nwrite_cmd_to_txdma() builds an output report in qsdev->report_buf, a heap\nbuffer allocated in quickspi_alloc_report_buf() to the device-descriptor\nderived max_report_len (a few hundred bytes for a touch controller). It\ncopies the caller-supplied report into that buffer:\n\n memcpy(write_buf->content, report_buf, report_buf_len);\n\nThe HID core caps a report at HID_MAX_BUFFER_SIZE (16384) by default, and\nquickspi_hid_ll_driver does not set max_buffer_size, so the length reaches\nthe driver unbounded. A hidraw SET_REPORT/SET_FEATURE ioctl carrying a\nreport larger than max_report_len therefore overflows report_buf with\nattacker-controlled length and content.\n\nRecord the report_buf allocation size and reject reports that do not fit\nbefore copying, matching the equivalent guard in the intel-quicki2c\nsibling (quicki2c_init_write_buf()) and the hid-goodix-spi fix.\n\nwrite_cmd_to_txdma() writes the output report header ahead of the content\nin the same buffer, so size the allocation to cover the header as well.\nThat keeps the added bound from rejecting a maximum-sized report."}], "id": "CVE-2026-89620", "lastModified": "2026-10-19T09:17:58.767", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-09-11T20:19:47.280", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6fcefe71aeb524f6e77fe586fe85d873745e917c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a59cf84441f9a17323c89452cec2bf16724c48a9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ee8ad1bb1e96164d51089b1182f1bd5f187e7baa"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: HID Intel QuickSPI heap buffer overflow via crafted report", "id": "2532028", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532028"}, "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"}, "cwe": "CWE-120", "details": ["A flaw was found in the Linux kernel's HID Intel QuickSPI driver. A local attacker can exploit a heap buffer overflow by providing a specially crafted report through a `hidraw SET_REPORT/SET_FEATURE ioctl`. This allows the attacker to overflow a buffer with controlled length and content, potentially leading to memory corruption or denial of service."], "name": "CVE-2026-89620", "package_state": [{"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-11T19:45:18Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89620\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89620\nhttps://git.kernel.org/stable/c/6fcefe71aeb524f6e77fe586fe85d873745e917c\nhttps://git.kernel.org/stable/c/a59cf84441f9a17323c89452cec2bf16724c48a9\nhttps://git.kernel.org/stable/c/ee8ad1bb1e96164d51089b1182f1bd5f187e7baa"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9d8d51735a3af40b722346931a6a1e50227df4b5,6fcefe71aeb524f6e77fe586fe85d873745e917c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9d8d51735a3af40b722346931a6a1e50227df4b5,ee8ad1bb1e96164d51089b1182f1bd5f187e7baa)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9d8d51735a3af40b722346931a6a1e50227df4b5,a59cf84441f9a17323c89452cec2bf16724c48a9)"}}], "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": "6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.50,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.4,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "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": "2026-09-12T06:30:09.006646+00:00", "updated": "2026-09-15T21:15:14.625201+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}