CVE-2026-53251

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1360e5b6ce63d63d23223a659ca2bbafa30a53aa < 4bbec25f47b930101294fd310c627c3f53e9661faffected
LinuxLinux07a9342b94a91b306ed1cf6aa8254aea210764c9 < 33d677d2e3713d98012c3dbd4a9207f7d785b854affected
LinuxLinux07a9342b94a91b306ed1cf6aa8254aea210764c9 < 23e8eb16820b866528fb300dc67fe3f67f00ef62affected
LinuxLinux07a9342b94a91b306ed1cf6aa8254aea210764c9 < 5cbf290b79351971f20c7a533247e8d58a3f970caffected
LinuxLinuxbfec1e55314896bf4a4cfdb3a9ad4872be9f06edaffected
LinuxLinux6.12.2 < 6.12.94affected
LinuxLinux6.11.11 < 6.12affected
LinuxLinux6.13affected
LinuxLinux0 < 6.13unaffected
LinuxLinux6.12.94 <= 6.12.*unaffected
LinuxLinux6.18.36 <= 6.18.*unaffected
LinuxLinux7.0.13 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References