{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43022", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.975Z", "datePublished": "2026-05-01T14:15:25.059Z", "dateUpdated": "2026-05-02T06:14:29.491Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-02T06:14:29.491Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists\n\nhci_cmd_sync_queue_once() needs to indicate whether a queue item was\nadded, so caller can know if callbacks are called, so it can avoid\nleaking resources.\n\nChange the function to return -EEXIST if queue item already exists.\n\nModify all callsites to handle that."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_sync.c"], "versions": [{"version": "505ea2b295929e7be2b4e1bc86ee31cb7862fb01", "lessThan": "0ad2ce230b38cd4b3f6732cc609e270461e626e5", "status": "affected", "versionType": "git"}, {"version": "505ea2b295929e7be2b4e1bc86ee31cb7862fb01", "lessThan": "2969554bcfccb5c609f6b6cd4a014933f3a66dd0", "status": "affected", "versionType": "git"}, {"version": "f00f36db76eb8fd10d13e80e2590f23b5beaa54d", "status": "affected", "versionType": "git"}, {"version": "1499f79995c7ee58e3bfeeff75f6d1b37dcda881", "status": "affected", "versionType": "git"}, {"version": "357603f4d396d85fbf0045512efaf1d7f7394ed7", "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_sync.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.12", "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": "6.9", "versionEndExcluding": "6.19.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.0"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.120"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8.9"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5"}, {"url": "https://git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0"}], "title": "Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists", "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: hci_cmd_sync_queue_once() return -EEXIST if exists\n\nhci_cmd_sync_queue_once() needs to indicate whether a queue item was\nadded, so caller can know if callbacks are called, so it can avoid\nleaking resources.\n\nChange the function to return -EEXIST if queue item already exists.\n\nModify all callsites to handle that."}], "id": "CVE-2026-43022", "lastModified": "2026-05-01T15:24:14.893", "metrics": {}, "published": "2026-05-01T15:16:46.483", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists", "id": "2464433", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464433"}, "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-772", "details": ["A flaw was found in the Bluetooth Host Controller Interface (HCI) synchronization component of the Linux kernel. The `hci_cmd_sync_queue_once()` function did not properly signal when a command was already queued, which could lead to resource leaks. An attacker could potentially exploit this to cause a Denial of Service by exhausting system resources."], "name": "CVE-2026-43022", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43022\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43022\nhttps://lore.kernel.org/linux-cve-announce/2026050158-CVE-2026-43022-00f0@gregkh/T"], "threat_severity": "Moderate"}