{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53251", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.394Z", "datePublished": "2026-06-25T08:39:43.290Z", "dateUpdated": "2026-06-25T08:39:43.290Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-25T08:39:43.290Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync\n\nhci_get_route() returns a reference-counted hci_dev pointer via\nhci_dev_hold(). The function exits normally or with an error without ever\nreleasing it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/iso.c"], "versions": [{"version": "1360e5b6ce63d63d23223a659ca2bbafa30a53aa", "lessThan": "4bbec25f47b930101294fd310c627c3f53e9661f", "status": "affected", "versionType": "git"}, {"version": "07a9342b94a91b306ed1cf6aa8254aea210764c9", "lessThan": "33d677d2e3713d98012c3dbd4a9207f7d785b854", "status": "affected", "versionType": "git"}, {"version": "07a9342b94a91b306ed1cf6aa8254aea210764c9", "lessThan": "23e8eb16820b866528fb300dc67fe3f67f00ef62", "status": "affected", "versionType": "git"}, {"version": "07a9342b94a91b306ed1cf6aa8254aea210764c9", "lessThan": "5cbf290b79351971f20c7a533247e8d58a3f970c", "status": "affected", "versionType": "git"}, {"version": "bfec1e55314896bf4a4cfdb3a9ad4872be9f06ed", "status": "affected", "versionType": "git"}, {"version": "6.12.2", "lessThan": "6.12.94", "status": "affected", "versionType": "semver"}, {"version": "6.11.11", "lessThan": "6.12", "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/iso.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.94", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.36", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.13", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.12.2", "versionEndExcluding": "6.12.94"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.18.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.0.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4bbec25f47b930101294fd310c627c3f53e9661f"}, {"url": "https://git.kernel.org/stable/c/33d677d2e3713d98012c3dbd4a9207f7d785b854"}, {"url": "https://git.kernel.org/stable/c/23e8eb16820b866528fb300dc67fe3f67f00ef62"}, {"url": "https://git.kernel.org/stable/c/5cbf290b79351971f20c7a533247e8d58a3f970c"}], "title": "Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{}

{"bugzilla": {"description": "kernel: Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync", "id": "2492793", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492793"}, "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 Linux kernel's Bluetooth subsystem. The `hci_get_route()` function, used in the ISO (Isochronous Stream) connection handling, fails to release a reference-counted `hci_dev` pointer. This resource leak could lead to a Denial of Service (DoS) condition."], "name": "CVE-2026-53251", "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": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53251\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53251\nhttps://lore.kernel.org/linux-cve-announce/2026062513-CVE-2026-53251-8ff0@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1360e5b6ce63d63d23223a659ca2bbafa30a53aa,4bbec25f47b930101294fd310c627c3f53e9661f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[07a9342b94a91b306ed1cf6aa8254aea210764c9,33d677d2e3713d98012c3dbd4a9207f7d785b854)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[07a9342b94a91b306ed1cf6aa8254aea210764c9,23e8eb16820b866528fb300dc67fe3f67f00ef62)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[07a9342b94a91b306ed1cf6aa8254aea210764c9,5cbf290b79351971f20c7a533247e8d58a3f970c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "bfec1e55314896bf4a4cfdb3a9ad4872be9f06ed"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.2,6.12.94)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.11.11,6.12)"}}], "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": "semver", "value": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.94,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.36,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.13,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-06-25T12:00:13.997858+00:00", "updated": "2026-06-26T14:00:22.300627+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-545", "CWE-772"]}