Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-53251
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-25 09:16:43 UTC
Updated2026-07-08 16:51:26 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001750000 probability, percentile 0.072160000 (date 2026-07-04)

Problem Types: CWE-772

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1360e5b6ce63d63d23223a659ca2bbafa30a53aa 4bbec25f47b930101294fd310c627c3f53e9661f git Not specified
CNA Linux Linux affected 07a9342b94a91b306ed1cf6aa8254aea210764c9 33d677d2e3713d98012c3dbd4a9207f7d785b854 git Not specified
CNA Linux Linux affected 07a9342b94a91b306ed1cf6aa8254aea210764c9 23e8eb16820b866528fb300dc67fe3f67f00ef62 git Not specified
CNA Linux Linux affected 07a9342b94a91b306ed1cf6aa8254aea210764c9 5cbf290b79351971f20c7a533247e8d58a3f970c git Not specified
CNA Linux Linux affected bfec1e55314896bf4a4cfdb3a9ad4872be9f06ed git Not specified
CNA Linux Linux affected 6.12.2 6.12.94 semver Not specified
CNA Linux Linux affected 6.11.11 6.12 semver Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.12.94 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.36 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.13 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/4bbec25f47b930101294fd310c627c3f53e9661f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/33d677d2e3713d98012c3dbd4a9207f7d785b854 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5cbf290b79351971f20c7a533247e8d58a3f970c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/23e8eb16820b866528fb300dc67fe3f67f00ef62 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report