{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43119", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.987Z", "datePublished": "2026-05-06T07:40:43.257Z", "dateUpdated": "2026-05-06T07:40:43.257Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-06T07:40:43.257Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: annotate data-races around hdev->req_status\n\n__hci_cmd_sync_sk() sets hdev->req_status under hdev->req_lock:\n\n hdev->req_status = HCI_REQ_PEND;\n\nHowever, several other functions read or write hdev->req_status without\nholding any lock:\n\n - hci_send_cmd_sync() reads req_status in hci_cmd_work (workqueue)\n - hci_cmd_sync_complete() reads/writes from HCI event completion\n - hci_cmd_sync_cancel() / hci_cmd_sync_cancel_sync() read/write\n - hci_abort_conn() reads in connection abort path\n\nSince __hci_cmd_sync_sk() runs on hdev->req_workqueue while\nhci_send_cmd_sync() runs on hdev->workqueue, these are different\nworkqueues that can execute concurrently on different CPUs. The plain\nC accesses constitute a data race.\n\nAdd READ_ONCE()/WRITE_ONCE() annotations on all concurrent accesses\nto hdev->req_status to prevent potential compiler optimizations that\ncould affect correctness (e.g., load fusing in the wait_event\ncondition or store reordering)."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_conn.c", "net/bluetooth/hci_core.c", "net/bluetooth/hci_sync.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "6e539907c0d11f514c5e0b049b27b04dff48a5b1", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "a7a1cdb4a64ca74eb95cc46648fccb8cd3f9af27", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "40734ce8efc34c4a0d0222855798c0dc14b65f2e", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "b6807cfc195ef99e1ac37b2e1e60df40295daa8c", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_conn.c", "net/bluetooth/hci_core.c", "net/bluetooth/hci_sync.c"], "versions": [{"version": "6.12.83", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.24", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.14", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.83"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.18.24"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.19.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6e539907c0d11f514c5e0b049b27b04dff48a5b1"}, {"url": "https://git.kernel.org/stable/c/a7a1cdb4a64ca74eb95cc46648fccb8cd3f9af27"}, {"url": "https://git.kernel.org/stable/c/40734ce8efc34c4a0d0222855798c0dc14b65f2e"}, {"url": "https://git.kernel.org/stable/c/b6807cfc195ef99e1ac37b2e1e60df40295daa8c"}], "title": "Bluetooth: hci_sync: annotate data-races around hdev->req_status", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: annotate data-races around hdev->req_status\n\n__hci_cmd_sync_sk() sets hdev->req_status under hdev->req_lock:\n\n hdev->req_status = HCI_REQ_PEND;\n\nHowever, several other functions read or write hdev->req_status without\nholding any lock:\n\n - hci_send_cmd_sync() reads req_status in hci_cmd_work (workqueue)\n - hci_cmd_sync_complete() reads/writes from HCI event completion\n - hci_cmd_sync_cancel() / hci_cmd_sync_cancel_sync() read/write\n - hci_abort_conn() reads in connection abort path\n\nSince __hci_cmd_sync_sk() runs on hdev->req_workqueue while\nhci_send_cmd_sync() runs on hdev->workqueue, these are different\nworkqueues that can execute concurrently on different CPUs. The plain\nC accesses constitute a data race.\n\nAdd READ_ONCE()/WRITE_ONCE() annotations on all concurrent accesses\nto hdev->req_status to prevent potential compiler optimizations that\ncould affect correctness (e.g., load fusing in the wait_event\ncondition or store reordering)."}], "id": "CVE-2026-43119", "lastModified": "2026-05-06T10:16:25.773", "metrics": {}, "published": "2026-05-06T10:16:25.773", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/40734ce8efc34c4a0d0222855798c0dc14b65f2e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6e539907c0d11f514c5e0b049b27b04dff48a5b1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a7a1cdb4a64ca74eb95cc46648fccb8cd3f9af27"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b6807cfc195ef99e1ac37b2e1e60df40295daa8c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}