CVE-2026-53251

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/23e8eb16820b866528fb300dc67fe3f67f00ef62	Patch
https://git.kernel.org/stable/c/33d677d2e3713d98012c3dbd4a9207f7d785b854	Patch
https://git.kernel.org/stable/c/4bbec25f47b930101294fd310c627c3f53e9661f	Patch
https://git.kernel.org/stable/c/5cbf290b79351971f20c7a533247e8d58a3f970c	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc3::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc4::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc5::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc6::::::

History

No history.

Information

Published : 2026-06-25 09:16

Updated : 2026-07-08 16:51

NVD link : CVE-2026-53251

Mitre link : CVE-2026-53251

CVE.ORG link : CVE-2026-53251

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-772

Missing Release of Resource after Effective Lifetime

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