CVE-2026-97976

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97976", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:18:58.207Z", "datePublished": "2026-09-25T10:23:14.596Z", "dateUpdated": "2026-10-19T09:11:43.531Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:11:43.531Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel_pcie: validate packet_len before skb_put_data\n\nbtintel_pcie_submit_rx_work() reads packet_len from rfh_hdr without\nchecking if it exceeds the RX buffer size. An oversized packet_len\ncan lead to an out-of-bounds read in skb_put_data().\n\nValidate packet_len to ensure it is non-zero and does not exceed\nBTINTEL_PCIE_BUFFER_SIZE - sizeof(*rfh_hdr), logging an error when\ninvalid.\n\nThis issue was reported by Claude Mythos. It can be simulated either by\nusing customized firmware configured to return an invalid packet_len or\nby modifying rfh_hdr->packet_len in the driver before calling\nbtintel_pcie_submit_rx_work()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/bluetooth/btintel_pcie.c"], "versions": [{"version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e", "lessThan": "ab0159b1f7214ce9bad9862751e4553e635a21b1", "status": "affected", "versionType": "git"}, {"version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e", "lessThan": "73a50c636425cb9f7ab647b5a97bd14dd5610076", "status": "affected", "versionType": "git"}, {"version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e", "lessThan": "46884c0f92708f1d218fc94d88800227a19b52f8", "status": "affected", "versionType": "git"}, {"version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e", "lessThan": "6436e1b5331b1aebf905c13e0880a37032719b75", "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/bluetooth/btintel_pcie.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.7", "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": "6.10", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ab0159b1f7214ce9bad9862751e4553e635a21b1"}, {"url": "https://git.kernel.org/stable/c/73a50c636425cb9f7ab647b5a97bd14dd5610076"}, {"url": "https://git.kernel.org/stable/c/46884c0f92708f1d218fc94d88800227a19b52f8"}, {"url": "https://git.kernel.org/stable/c/6436e1b5331b1aebf905c13e0880a37032719b75"}], "title": "Bluetooth: btintel_pcie: validate packet_len before skb_put_data", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/bluetooth/btintel_pcie.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "ab0159b1f7214ce9bad9862751e4553e635a21b1", "status": "affected", "version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e", "versionType": "git"}, {"lessThan": "73a50c636425cb9f7ab647b5a97bd14dd5610076", "status": "affected", "version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e", "versionType": "git"}, {"lessThan": "46884c0f92708f1d218fc94d88800227a19b52f8", "status": "affected", "version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e", "versionType": "git"}, {"lessThan": "6436e1b5331b1aebf905c13e0880a37032719b75", "status": "affected", "version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/bluetooth/btintel_pcie.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"lessThan": "6.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "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\nBluetooth: btintel_pcie: validate packet_len before skb_put_data\n\nbtintel_pcie_submit_rx_work() reads packet_len from rfh_hdr without\nchecking if it exceeds the RX buffer size. An oversized packet_len\ncan lead to an out-of-bounds read in skb_put_data().\n\nValidate packet_len to ensure it is non-zero and does not exceed\nBTINTEL_PCIE_BUFFER_SIZE - sizeof(*rfh_hdr), logging an error when\ninvalid.\n\nThis issue was reported by Claude Mythos. It can be simulated either by\nusing customized firmware configured to return an invalid packet_len or\nby modifying rfh_hdr->packet_len in the driver before calling\nbtintel_pcie_submit_rx_work()."}], "id": "CVE-2026-97976", "lastModified": "2026-10-19T10:17:48.987", "metrics": {}, "published": "2026-09-25T11:17:25.570", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/46884c0f92708f1d218fc94d88800227a19b52f8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6436e1b5331b1aebf905c13e0880a37032719b75"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/73a50c636425cb9f7ab647b5a97bd14dd5610076"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab0159b1f7214ce9bad9862751e4553e635a21b1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Bluetooth: btintel_pcie: validate packet_len before skb_put_data", "id": "2541173", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541173"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: btintel_pcie: validate packet_len before skb_put_data\nbtintel_pcie_submit_rx_work() reads packet_len from rfh_hdr without\nchecking if it exceeds the RX buffer size. An oversized packet_len\ncan lead to an out-of-bounds read in skb_put_data().\nValidate packet_len to ensure it is non-zero and does not exceed\nBTINTEL_PCIE_BUFFER_SIZE - sizeof(*rfh_hdr), logging an error when\ninvalid.\nThis issue was reported by Claude Mythos. It can be simulated either by\nusing customized firmware configured to return an invalid packet_len or\nby modifying rfh_hdr->packet_len in the driver before calling\nbtintel_pcie_submit_rx_work().", "A flaw was found in the Linux kernel's Intel Bluetooth PCIe driver. The driver fails to validate the packet length received from the hardware buffer before copying data. A compromised or malicious Bluetooth device providing an oversized packet length can trigger an out-of-bounds memory read, leading to a system crash, resulting in a Denial of Service (DoS), or potential information disclosure."], "name": "CVE-2026-97976", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-97976\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-97976\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97976.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c2b636b3f788d10486a6691ad6dd3ec4c93bd78e,ab0159b1f7214ce9bad9862751e4553e635a21b1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c2b636b3f788d10486a6691ad6dd3ec4c93bd78e,73a50c636425cb9f7ab647b5a97bd14dd5610076)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c2b636b3f788d10486a6691ad6dd3ec4c93bd78e,46884c0f92708f1d218fc94d88800227a19b52f8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c2b636b3f788d10486a6691ad6dd3ec4c93bd78e,6436e1b5331b1aebf905c13e0880a37032719b75)"}}], "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": "6.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.111,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.7,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc3,*]"}}], "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": "2026-09-25T14:45:18.437976+00:00", "updated": "2026-10-01T04:30:18.652260+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}