Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A memory misreference vulnerability exists in the Linux kernel. The vulnerability stems from the setcigparamssync function in Bluetooth hciconn not locking hciconn, which can b...

The vulnerability of the hci_conn_params() function in the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the hciconnparams function in the Linux operating system’s kernel relates to the possibility of using memory after it is freed. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the hci_conn_del() function in the net/bluetooth/hci_conn.c module of the Linux kernel’s Bluetooth subsystem allows a attacker to cause a service failure.

The vulnerability of the hciconndel function in the net/bluetooth/hciconn.c module of the Bluetooth subsystem in the Linux operating system is related to improper control of resource identifiers “resource injection”. Exploiting this vulnerability could allow a attacker to cause service failures...

CVE-2025-53477

NULL Pointer Dereference vulnerability in Apache Nimble. Missing validation of HCI connection complete or HCI command TX buffer could lead to NULL pointer dereference. This issue requires disabled asserts and broken or bogus Bluetooth controller and thus severity is considered low. This issue...

kernel: Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue

A flaw was discovered in the Bluetooth subsystem of the Linux kernel. When processing a HCIEVNUMCOMPPKTS event, the function hciconntxdequeue did not properly hold or release the hdev device lock, which may lead to a use-after-free of the connection structure...

SUSE CVE-2023-54038

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: return ERRPTR instead of NULL when there is no link hciconnectsco currently returns NULL when there is no link i.e. when hciconnlink returns NULL. scoconnect expects an ERRPTR in case of any error see line 266...

CVE-2023-54038

The CVE-2023-54038 issue affects the Linux kernel Bluetooth HCI path. The root cause is that hci_connect_sco() (and similarly hci_connect_cis()) returned NULL on error, causing sco_conn_add() to dereference hcon->hdev and crash. The fix switches to returning an ERR_PTR on error for both hci_co...

CVE-2025-68304

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: lookup hciconn on RX path on protocol side The hdev lock/lookup/unlock/use pattern in the packet RX path doesn't ensure hciconn is not concurrently modified/deleted. This locking appears to be leftover from...

AZL-72649 CVE-2025-68304 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: lookup hciconn on RX path on protocol side The hdev lock/lookup/unlock/use pattern in the packet RX path doesn't ensure hciconn is not concurrently modified/deleted. This locking appears to be leftover from...

UBUNTU-CVE-2025-68304

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: lookup hciconn on RX path on protocol side The hdev lock/lookup/unlock/use pattern in the packet RX path doesn't ensure hciconn is not concurrently modified/deleted. This locking appears to be leftover from...

CVE-2025-68304

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: lookup hciconn on RX path on protocol side The hdev lock/lookup/unlock/use pattern in the packet RX path doesn't ensure hciconn is not concurrently modified/deleted. This locking appears to be leftover from...

CVE-2025-68304 Bluetooth: hci_core: lookup hci_conn on RX path on protocol side

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: lookup hciconn on RX path on protocol side The hdev lock/lookup/unlock/use pattern in the packet RX path doesn't ensure hciconn is not concurrently modified/deleted. This locking appears to be leftover from...

CVE-2025-68304

CVE-2025-68304 concerns the Linux kernel Bluetooth path. The issue occurs in the RX path of HCI protocol handling where the hci_conn object may be concurrently modified/deleted while still being looked up, enabling a use-after-free in certain code paths. The bug was addressed by moving the lookup...

CVE-2025-68304 Bluetooth: hci_core: lookup hci_conn on RX path on protocol side

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: lookup hciconn on RX path on protocol side The hdev lock/lookup/unlock/use pattern in the packet RX path doesn't ensure hciconn is not concurrently modified/deleted. This locking appears to be leftover from...

kernel: Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue

A flaw was discovered in the Bluetooth subsystem of the Linux kernel. When processing a HCIEVNUMCOMPPKTS event, the function hciconntxdequeue did not properly hold or release the hdev device lock, which may lead to a use-after-free of the connection structure...

SUSE CVE-2025-39983

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: Fix UAF in hciconntxdequeue This fixes the following UAF caused by not properly locking hdev when processing HCIEVNUMCOMPPKTS: BUG: KASAN: slab-use-after-free in hciconntxdequeue+0x1be/0x220...

EUVD-2025-34589

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: Fix UAF in hciconntxdequeue This fixes the following UAF caused by not properly locking hdev when processing HCIEVNUMCOMPPKTS: BUG: KASAN: slab-use-after-free in hciconntxdequeue+0x1be/0x220...

CVE-2025-39983

CVE-2025-39983 is a Linux kernel Bluetooth issue: UAF in hci_conn_tx_dequeue due to improper locking of hdev while processing HCI_EV_NUM_COMP_PKTS, leading to a KASAN slab-use-after-free in hci_conn.c and related Bluetooth code paths (hci_num_comp_pkts_evt, hci_event.c, hci_core.c). Affects the B...

CVE-2025-39982 Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: Fix UAF in hciaclcreateconnsync This fixes the following UFA in hciaclcreateconnsync where a connection still pending is command submission conn-state == BTOPEN maybe freed, also since this also can happen wi...

EUVD-2025-32765

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: call disconnect callback before deleting conn In hcicsdisconnect, we do hciconndel even if disconnection failed. ISO, L2CAP and SCO connections refer to the hciconn without hciconnget, so disconncfm must be...