{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90089", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.786Z", "datePublished": "2026-09-17T16:06:04.201Z", "dateUpdated": "2026-09-17T16:06:04.201Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-17T16:06:04.201Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btnxpuart: Validate the FW dump header length\n\nnxp_process_fw_dump() pulls the ACL header off the frame and then reads\nseq_num and buf_len from a struct nxp_fw_dump_hdr placed at skb->data,\nwithout checking that the ACL payload is long enough to contain it.\n\nh4_recv_buf() collects HCI_ACL_HDR_SIZE bytes of header followed by the\nnumber of payload bytes named in that header, so skb->len is 4 + dlen\nwith dlen supplied by the controller and possibly smaller than the 8\nbyte dump header, or zero. A short frame with connection handle 0xfff\ntherefore reads both fields from beyond the received data.\n\nBeyond the read itself, buf_len is what terminates a dump: a value of\nzero makes the driver call hci_devcd_complete() and reset the\ncontroller, so a truncated frame can end a dump early.\n\nUse skb_pull_data() to validate and pull the FW dump header before\naccessing its fields. Warn and reject the chunk if the header is\ntruncated."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/bluetooth/btnxpuart.c"], "versions": [{"version": "998e447f443f138c90faa6ff3845082af419070e", "lessThan": "a644b8df94966b672ac656577df98bd01bc88393", "status": "affected", "versionType": "git"}, {"version": "998e447f443f138c90faa6ff3845082af419070e", "lessThan": "22d419db7f9a01bea22cfcf66774d2b2fd4bb354", "status": "affected", "versionType": "git"}, {"version": "998e447f443f138c90faa6ff3845082af419070e", "lessThan": "060fa7592bdc043a93b6b7870f5b8551206d315d", "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/btnxpuart.c"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "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": "6.15", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a644b8df94966b672ac656577df98bd01bc88393"}, {"url": "https://git.kernel.org/stable/c/22d419db7f9a01bea22cfcf66774d2b2fd4bb354"}, {"url": "https://git.kernel.org/stable/c/060fa7592bdc043a93b6b7870f5b8551206d315d"}], "title": "Bluetooth: btnxpuart: Validate the FW dump header length", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/bluetooth/btnxpuart.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a644b8df94966b672ac656577df98bd01bc88393", "status": "affected", "version": "998e447f443f138c90faa6ff3845082af419070e", "versionType": "git"}, {"lessThan": "22d419db7f9a01bea22cfcf66774d2b2fd4bb354", "status": "affected", "version": "998e447f443f138c90faa6ff3845082af419070e", "versionType": "git"}, {"lessThan": "060fa7592bdc043a93b6b7870f5b8551206d315d", "status": "affected", "version": "998e447f443f138c90faa6ff3845082af419070e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/bluetooth/btnxpuart.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.15"}, {"lessThan": "6.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "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: btnxpuart: Validate the FW dump header length\n\nnxp_process_fw_dump() pulls the ACL header off the frame and then reads\nseq_num and buf_len from a struct nxp_fw_dump_hdr placed at skb->data,\nwithout checking that the ACL payload is long enough to contain it.\n\nh4_recv_buf() collects HCI_ACL_HDR_SIZE bytes of header followed by the\nnumber of payload bytes named in that header, so skb->len is 4 + dlen\nwith dlen supplied by the controller and possibly smaller than the 8\nbyte dump header, or zero. A short frame with connection handle 0xfff\ntherefore reads both fields from beyond the received data.\n\nBeyond the read itself, buf_len is what terminates a dump: a value of\nzero makes the driver call hci_devcd_complete() and reset the\ncontroller, so a truncated frame can end a dump early.\n\nUse skb_pull_data() to validate and pull the FW dump header before\naccessing its fields. Warn and reject the chunk if the header is\ntruncated."}], "id": "CVE-2026-90089", "lastModified": "2026-09-17T17:17:00.067", "metrics": {}, "published": "2026-09-17T17:17:00.067", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/060fa7592bdc043a93b6b7870f5b8551206d315d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/22d419db7f9a01bea22cfcf66774d2b2fd4bb354"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a644b8df94966b672ac656577df98bd01bc88393"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}