CVE-2026-63915

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: fix out-of-bounds read in HCP header parsing Both nfchcirecvfromllc and ncihcidatareceivedcb read packet-header from skb-data at function entry without first checking that the buffer holds at least one byte. A malicious...

CVE-2026-63974

CVE-2026-63974 affects the Linux kernel Bluetooth subsystem. The issue arises in hci_sync where HCI_CMD_DRAIN_WORKQUEUE must be set during device close because hci_dev_close_sync() can be invoked on a reset path, preventing timeouts from being queued while the hdev workqueue drains. The consequen...

EUVD-2026-45717

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix UAF in hcilecreatecissync hcilecreatecissync dereferences conn-conntimeout after releasing both rcureadlock and hcidevlockhdev. The conn pointer was obtained from an RCU-protected iteration over...

CVE-2026-63915 nfc: hci: fix out-of-bounds read in HCP header parsing

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: fix out-of-bounds read in HCP header parsing Both nfchcirecvfromllc and ncihcidatareceivedcb read packet-header from skb-data at function entry without first checking that the buffer holds at least one byte. A malicious...

CVE-2026-63915

CVE-2026-63915 : In the Linux kernel, the NFC NFC HCI stack (nfc_hci_recv_from_llc and nci_hci_data_received_cb) is vulnerable to an out-of-bounds heap read from packet->header when a 0-byte HCP frame is received, because the code reads skb->data at entry without ensuring a byte is present....

PT-2026-61291

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci sync: Set HCI CMD DRAIN WORKQUEUE during device close Since hci dev close sync can now be called during the reset path, we should also set HCI CMD DRAIN WORKQUEUE. This avoids queuing timeouts while the hdev...

PT-2026-61232

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: fix out-of-bounds read in HCP header parsing Both nfc hci recv from llc and nci hci data received cb read packet-header from skb-data at function entry without first checking that the buffer holds at least one byte. A...

SUSE CVE-2026-53357

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in l2capsockcleanuplisten vs l2capconndel btacceptdequeue unlinks a not-yet-accepted child from the parent accept queue and releasesocks it before returning, so the returned sk has no caller reference and is...

EUVD-2026-41372

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in l2capsockcleanuplisten vs l2capconndel btacceptdequeue unlinks a not-yet-accepted child from the parent accept queue and releasesocks it before returning, so the returned sk has no caller reference and is...

CVE-2026-53357 Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in l2capsockcleanuplisten vs l2capconndel btacceptdequeue unlinks a not-yet-accepted child from the parent accept queue and releasesocks it before returning, so the returned sk has no caller reference and is...

Bluetooth: fix memory leak in error path of hci_alloc_dev()

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Bluetooth: fix locking in hci_conn_request_evt() with HCI_PROTO_DEFER

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Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend

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CVE-2026-53252

A flaw was found in the Linux kernel's Bluetooth subsystem. Specifically, an issue in the error handling path of the hciallocdev function within the Bluetooth Host Controller Interface HCI Universal Asynchronous Receiver/Transmitter UART configuration can lead to a memory leak. This occurs when...

CVE-2026-53251

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on isoconnbigsync hcigetroute returns a reference-counted hcidev pointer via hcidevhold. The function exits normally or with an error without ever releasing it...

CVE-2026-53251 Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on isoconnbigsync hcigetroute returns a reference-counted hcidev pointer via hcidevhold. The function exits normally or with an error without ever releasing it...

PT-2026-52347

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak occurs in the Bluetooth HCI UART configuration during early failures in the hci alloc dev function. When device initialization fails before hci register dev completes, the...

CVE-2026-53072

The CVE-2026-53072 vulnerability affects the Linux kernel Bluetooth subsystem, specifically hci_conn_request_evt() when HCI_PROTO_DEFER is active. The issue arises because hci_connect_cfm(conn) is called without holding hdev->lock, breaking the expected lock discipline and allowing a Use-After...

kernel: Bluetooth: hci_sync: Fix UAF in le_read_features_complete

A flaw was found in the Bluetooth Host Controller Interface HCI synchronization module hcisync of the Linux kernel. A use-after-free UAF vulnerability exists in the lereadfeaturescomplete function, where a freed hciconn object is accessed. This can allow an attacker to cause a system crash, leadi...

EUVD-2026-34129

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and work before freeing context llcshdlcdeinit purges SHDLC skb queues and frees the llcshdlc structure while its timers and state machine work may still be active. Timer callbacks can schedule smwork...