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vuln-cve/data/2026/43xxx/CVE-2026-43119.json
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{
"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": "2026-11-06T15:32:31.799Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-10-30T12:25:00.556Z"
},
"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": "f80c5dad7b6467b884c445ffea45985793b4b2d0",
"lessThan": "ff5855e8891e1e2490741366d087fd2fbcaabc4a",
"status": "affected",
"versionType": "git"
},
{
"version": "f80c5dad7b6467b884c445ffea45985793b4b2d0",
"lessThan": "e51042ddc0b20d9bda5eb6dcf85a2668f9c5dae4",
"status": "affected",
"versionType": "git"
},
{
"version": "f80c5dad7b6467b884c445ffea45985793b4b2d0",
"lessThan": "6e539907c0d11f514c5e0b049b27b04dff48a5b1",
"status": "affected",
"versionType": "git"
},
{
"version": "f80c5dad7b6467b884c445ffea45985793b4b2d0",
"lessThan": "a7a1cdb4a64ca74eb95cc46648fccb8cd3f9af27",
"status": "affected",
"versionType": "git"
},
{
"version": "f80c5dad7b6467b884c445ffea45985793b4b2d0",
"lessThan": "40734ce8efc34c4a0d0222855798c0dc14b65f2e",
"status": "affected",
"versionType": "git"
},
{
"version": "f80c5dad7b6467b884c445ffea45985793b4b2d0",
"lessThan": "b6807cfc195ef99e1ac37b2e1e60df40295daa8c",
"status": "affected",
"versionType": "git"
},
{
"version": "8603d49906b231bbcd9141db7d096fa1041bc379",
"status": "affected",
"versionType": "git"
},
{
"version": "0e061885bfcd65ef5d09f154f3c3c3491cc7544a",
"status": "affected",
"versionType": "git"
},
{
"version": "a3d50fb7ce931f08a2c6194fdc4c9a56c9ed4153",
"status": "affected",
"versionType": "git"
},
{
"version": "4.19.47",
"lessThan": "4.20",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.0.20",
"lessThan": "5.1",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.1.6",
"lessThan": "5.2",
"status": "affected",
"versionType": "semver"
}
]
},
{
"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": "5.2",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.2",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.191",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.145",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"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:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.2",
"versionEndExcluding": "6.1.191"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.2",
"versionEndExcluding": "6.6.145"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.2",
"versionEndExcluding": "6.12.83"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.2",
"versionEndExcluding": "6.18.24"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.2",
"versionEndExcluding": "6.19.14"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.2",
"versionEndExcluding": "7.0"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.19.47"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.0.20"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.1.6"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/ff5855e8891e1e2490741366d087fd2fbcaabc4a"
},
{
"url": "https://git.kernel.org/stable/c/e51042ddc0b20d9bda5eb6dcf85a2668f9c5dae4"
},
{
"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"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-43119",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-11-06T15:28:43.636559Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-06T15:32:31.799Z"
}
}
]
}
}