UnratedFix available
Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync hci_get_route() returns a reference-counted hci_dev pointer via hci_dev_hold(). The function exits normally or with an error without ever releasing it.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.12.94, 6.18.36, 7.0.13
- CVEs
- CVE-2026-53251
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 02:51 UTC · Revision 1
Source evidence
Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync
core-osv · Original sourcePublished 25 Jun 2026, 08:39 UTC
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync hci_get_route() returns a reference-counted hci_dev pointer via hci_dev_hold(). The function exits normally or with an error without ever releasing it.
osv:CVE-2026-53251
Kernel
Fixed versions: 6.12.94, 6.18.36, 7.0.13
Complete source record
{
"id": "9bf31218c771de10f68adb9ee098cd515582afad685ded1ef80a232dff2c4645",
"url": "https://osv.dev/vulnerability/CVE-2026-53251",
"method": "structured",
"payload": {
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"title": "Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync",
"summary": "In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync hci_get_route() returns a reference-counted hci_dev pointer via hci_dev_hold(). The function exits normally or with an error without ever releasing it.",
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"database_specific": {
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{
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{
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],
"modified": "2026-10-28T02:30:33.025102618Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/23e8eb16820b866528fb300dc67fe3f67f00ef62",
"https://git.kernel.org/stable/c/33d677d2e3713d98012c3dbd4a9207f7d785b854",
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"https://nvd.nist.gov/vuln/detail/CVE-2026-53251",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53251.json"
}
},
"related_cves": [
{
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"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 499812,
"published_at": "2026-06-25T08:39:43.29+00:00"
}