Applied filters: Label=subsystems:bluetooth (drop)
Extra filters: [With Repro]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Closed Patch
KASAN: vmalloc-out-of-bounds Read in kcov_remote_start prio:normal bluetooth usb 17 3605 2h48m 317d 2/29 never kcov: fix data corruption and race conditions on PREEMPT_RT
KASAN: invalid-free in hci_req_sync_complete bluetooth 24 syz 179 774d 848d 1/29 never Bluetooth: Fix double free in hci_req_sync_complete
KASAN: slab-out-of-bounds Read in l2cap_sock_setsockopt (2) bluetooth prio:high 19 2 19d 25d 2/29 never Bluetooth: L2CAP: access chan->conn safely in get/setsockopt
KASAN: null-ptr-deref Read in l2cap_chan_hold_unless_zero prio:high bluetooth 11 syz, C 8 10d 28d 2/29 never Bluetooth: L2CAP: fix race l2cap_sock_cleanup_listen() vs. put_chan
KASAN: slab-use-after-free Read in l2cap_sock_ready_cb (2) prio:high bluetooth 19 syz error 136 16h35m 686d 2/29 never Bluetooth: L2CAP: reject accept queue add unless BT_LISTEN
KASAN: slab-use-after-free Read in l2cap_disconn_ind (3) prio:high bluetooth 19 2 22d 97d 3/29 never Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
KASAN: slab-use-after-free Write in bt_accept_dequeue prio:high actionable bluetooth 22 3 60d 59d 29/29 17h09m 4bd0b274054f Bluetooth: fix UAF in bt_accept_dequeue()
KASAN: slab-use-after-free Read in bnep_add_connection actionable prio:normal bluetooth 19 1 91d 84d 29/29 33d 59e932ded949 Bluetooth: bnep: Fix UAF read of dev->name
memory leak in init_srcu_struct_fields prio:low bluetooth 3 syz, C 11 78d 79d 29/29 34d 37b3009bf597 Bluetooth: fix memory leak in error path of hci_alloc_dev()
general protection fault in h4_recv prio:normal bluetooth 2 syz, C error 4 135d 131d 29/29 55d 902fe40bce70 Bluetooth: hci_uart: Fix NULL deref in recv callbacks when priv is uninitialized
KASAN: slab-use-after-free Write in le_read_features_complete bluetooth 22 syz, C error 505 148d 253d 29/29 89d 035c25007c9e Bluetooth: hci_sync: Fix UAF in le_read_features_complete
KASAN: slab-use-after-free Read in l2cap_unregister_user bluetooth 22 syz, C done 46133 103d 654d 29/29 89d 752a6c9596dd Bluetooth: L2CAP: Fix use-after-free in l2cap_unregister_user
KASAN: stack-out-of-bounds Read in l2cap_send_cmd bluetooth prio:high 17 syz, C 174 145d 157d 29/29 89d 9d87cb22195b Bluetooth: L2CAP: Fix stack-out-of-bounds read in l2cap_ecred_conn_req
memory leak in skb_clone (3) bluetooth batman 3 syz, C 4 107d 223d 29/29 104d 21e4271e6509 Bluetooth: purge error queues in socket destructors
memory leak in __skb_tstamp_tx bluetooth 3 syz, C 1 222d 222d 29/29 104d 21e4271e6509 Bluetooth: purge error queues in socket destructors
KMSAN: uninit-value in hci_cmd_complete_evt bluetooth 7 syz, C 37 287d 640d 29/29 223d 5c5f1f64681c Bluetooth: hci_event: validate skb length for unknown CC opcode
KASAN: slab-use-after-free Read in l2cap_recv_acldata (2) bluetooth 19 3 303d 341d 29/29 223d 79a2d4678ba9 Bluetooth: hci_core: lookup hci_conn on RX path on protocol side
KASAN: slab-use-after-free Read in mgmt_pending_remove bluetooth 19 syz 2 278d 275d 29/29 223d 89bb613511cc Bluetooth: hci_sock: Prevent race in socket write iter and sock bind
KASAN: slab-use-after-free Read in btusb_disconnect usb bluetooth 19 syz, C 5 324d 410d 29/29 223d 23d22f2f7176 Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF
general protection fault in bcsp_recv bluetooth 8 syz, C error 1003 301d 549d 29/29 292d ca94b2b036c2 Bluetooth: bcsp: receive data only if registered
KASAN: slab-use-after-free Read in release_sock (2) bluetooth 19 1 361d 355d 29/29 292d 862c62810856 Bluetooth: Fix use-after-free in l2cap_sock_cleanup_listen()
KASAN: null-ptr-deref Write in l2cap_sock_resume_cb (4) bluetooth 12 syz, C 8 407d 406d 29/29 348d a0075accbf0d Bluetooth: Fix null-ptr-deref in l2cap_sock_resume_cb()
KASAN: slab-use-after-free Read in skb_queue_purge_reason (3) bluetooth 19 5 420d 428d 29/29 348d 1d6123102e9f Bluetooth: hci_core: Fix use-after-free in vhci_flush()
KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump bluetooth 17 syz, C 1512 384d 505d 29/29 348d 7af4d7b53502 Bluetooth: hci_devcd_dump: fix out-of-bounds via dev_coredumpv
BUG: corrupted list in mgmt_pending_remove bluetooth 19 syz, C error 44 444d 716d 29/29 377d 6fe26f694c82 Bluetooth: MGMT: Protect mgmt_pending list with its own lock
KASAN: slab-use-after-free Read in mgmt_remove_adv_monitor_complete (3) bluetooth 19 syz, C 5 437d 461d 29/29 377d e6ed54e86aae Bluetooth: MGMT: Fix UAF on mgmt_remove_adv_monitor_complete
KASAN: slab-use-after-free Read in hci_sock_get_channel bluetooth 19 syz 1 454d 450d 29/29 377d 6fe26f694c82 Bluetooth: MGMT: Protect mgmt_pending list with its own lock
KASAN: slab-out-of-bounds Read in hci_cmd_sync_alloc bluetooth 17 syz, C 4 461d 471d 29/29 383d 03f1700b9b4d Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands
general protection fault in lookup_or_create_module_kobject bluetooth usb 2 syz, C 266 465d 470d 29/29 406d a6aeb739974e module: ensure that kobject_put() is safe for module type kobjects
KASAN: slab-use-after-free Read in skb_queue_purge_reason (2) bluetooth 19 syz, C done 132 439d 823d 28/29 434d 5df5dafc171b Bluetooth: hci_uart: Fix another race during initialization
KASAN: slab-use-after-free Read in l2cap_send_cmd bluetooth 19 syz, C done 34 573d 904d 28/29 434d b4f82f9ed43a Bluetooth: L2CAP: Fix slab-use-after-free Read in l2cap_send_cmd
BUG: corrupted list in hci_chan_del (2) bluetooth 19 syz, C done 502 554d 558d 28/29 434d ab4eedb790ca Bluetooth: L2CAP: Fix corrupted list in hci_chan_del
KASAN: slab-use-after-free Read in sco_sock_connect bluetooth 19 syz 1 632d 631d 28/29 469d ed9588554943 Bluetooth: SCO: remove the redundant sco_conn_put
BUG: sleeping function called from invalid context in hci_le_create_big_complete_evt bluetooth 5 syz, C done 380 620d 863d 28/29 469d 4d94f0555827 Bluetooth: hci_core: Fix sleeping function called from invalid context
KASAN: slab-use-after-free Read in set_powered_sync bluetooth 19 syz, C done 153 628d 764d 28/29 469d 0b882940665c Bluetooth: MGMT: Fix slab-use-after-free Read in set_powered_sync
KASAN: slab-use-after-free Read in mgmt_remove_adv_monitor_sync bluetooth 19 syz 40 582d 755d 28/29 469d 26fbd3494a7d Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync
KMSAN: uninit-value in hci_rx_work bluetooth 7 syz, C 29 637d 755d 28/29 610d 3fe288a8214e Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet
WARNING in hci_conn_timeout bluetooth -1 syz, C done 6022 610d 2207d 28/29 610d 2b0f2fc9ed62 Bluetooth: hci_conn: Use disable_delayed_work_sync
KASAN: slab-use-after-free Write in sco_sock_timeout bluetooth 22 syz, C done 275 662d 1006d 28/29 630d 1bf4470a3939 Bluetooth: SCO: Fix UAF on sco_sock_timeout
possible deadlock in rfcomm_sk_state_change bluetooth 4 syz, C done 22650 672d 1800d 28/29 643d 08d1914293da Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change
KASAN: slab-use-after-free Read in l2cap_connect (2) bluetooth 19 syz, C done 8 696d 784d 28/29 643d 333b4fd11e89 Bluetooth: L2CAP: Fix uaf in l2cap_connect
BUG: workqueue leaked atomic, lock or RCU: kworker/u33:NUM[NUM] bluetooth -1 syz, C 13 740d 753d 28/29 684d c531e63871c0 Bluetooth: l2cap: always unlock channel in l2cap_conless_channel()
WARNING in __hci_cmd_sync_sk bluetooth -1 syz 36 755d 770d 27/29 731d f1a8f402f13f Bluetooth: L2CAP: Fix deadlock
WARNING in btusb_submit_intr_urb/usb_submit_urb bluetooth usb -1 syz, C error 2 772d 783d 27/29 734d a368ecde8a50 USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor
general protection fault in l2cap_sock_recv_cb bluetooth 8 syz, C inconclusive 8 776d 802d 26/29 742d 89e856e124f9 bluetooth/l2cap: sync sock recv cb and release
possible deadlock in __flush_workqueue bluetooth 4 1456 745d 944d 26/29 742d 0d151a103775 Bluetooth: hci_core: cancel all works upon hci_unregister_dev()
WARNING in hci_conn_del bluetooth -1 syz, C done 10497 771d 902d 26/29 742d 015d79c96d62 Bluetooth: Ignore too large handle values in BIG 1cc18c2ab2e8 bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX
BUG: soft lockup in hci_cmd_timeout bluetooth usb 1 syz, C 1 801d 797d 26/29 769d 22f008128625 USB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages
general protection fault in btintel_read_version bluetooth 2 syz, C error 5 933d 944d 25/29 860d b79e04091010 Bluetooth: btintel: Fix null ptr deref in btintel_read_version
KASAN: slab-use-after-free Write in __hci_acl_create_connection_sync bluetooth 22 syz, C done 87 911d 922d 25/29 860d 5f641f03abcc Bluetooth: hci_conn: Fix UAF Write in __hci_acl_create_connection_sync
memory leak in corrupted bluetooth 3 syz 536 873d 945d 25/29 873d 0a186b49bba5 batman-adv: mcast: fix memory leak on deleting a batman-adv interface
KASAN: null-ptr-deref Read in ida_free (4) bluetooth 11 syz, C done done 29 969d 1007d 25/29 916d af73483f4e8b ida: Fix crash in ida_free when the bitmap is empty
possible deadlock in hci_rfkill_set_block bluetooth 4 syz, C done 3391 957d 1029d 25/29 925d 769bf60e17ee Bluetooth: Fix deadlock in vhci_send_frame
KASAN: slab-out-of-bounds Read in create_monitor_event bluetooth 17 syz, C done 952 1029d 1044d 25/29 971d 18f547f3fc07 Bluetooth: hci_sock: fix slab oob read in create_monitor_event
BUG: sleeping function called from invalid context in __hci_cmd_sync_sk bluetooth 5 syz, C done 34 1040d 1158d 25/29 971d acab8ff29a2a Bluetooth: ISO: Fix invalid context error
general protection fault in sco_conn_add bluetooth 2 syz, C done 4 1126d 1136d 23/29 1041d b4066eb04bb6 Bluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link
KASAN: slab-use-after-free Write in sco_chan_del bluetooth 22 syz, C done 19 1057d 1191d 23/29 1041d 3344d318337d Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early
INFO: rcu detected stall in hci_cmd_timeout bluetooth 1 1 1103d 1103d 23/29 1041d 8c21ab1bae94 net/sched: fq_pie: avoid stalls in fq_pie_timer()
KASAN: slab-use-after-free Read in hci_conn_del bluetooth 19 7 1181d 1204d 22/29 1144d ca1fd42e7dbf Bluetooth: Fix potential double free caused by hci_conn_unlink
possible deadlock in sco_conn_del bluetooth 4 syz, C done done 279 1190d 1593d 22/29 1144d a2ac591cb4d8 Bluetooth: Fix UAF in hci_conn_hash_flush again
KASAN: slab-use-after-free Read in hci_conn_hash_flush bluetooth 22 syz, C error 3511 1169d 1263d 22/29 1144d a2ac591cb4d8 Bluetooth: Fix UAF in hci_conn_hash_flush again ca1fd42e7dbf Bluetooth: Fix potential double free caused by hci_conn_unlink
INFO: task hung in rfcomm_process_sessions (2) bluetooth 1 syz, C error done 14 1329d 1602d 22/29 1167d 1d80d57ffcb5 Bluetooth: Fix possible deadlock in rfcomm_sk_state_change
WARNING: bad unlock balance in l2cap_recv_frame bluetooth 4 75 1209d 1221d 22/29 1167d 25e97f7b1866 Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
KASAN: use-after-free Read in mgmt_pending_remove bluetooth 19 syz, C unreliable 9 1442d 1462d 22/29 1271d 3cfbc6ac22d6 Bluetooth: hci_sync: fix double mgmt_pending_free() in remove_adv_monitor() Bluetooth: hci_sync: fix double mgmt_pending_free() in remove_adv_monitor()
WARNING: ODEBUG bug in mgmt_index_removed bluetooth -1 1 1444d 1440d 22/29 1271d f74ca25d6d66 Bluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev()
KASAN: use-after-free Write in sco_sock_timeout bluetooth 22 syz, C done 272 1545d 1818d 22/29 1271d 7aa1e7d15f8a Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout
INFO: task hung in hci_dev_close_sync bluetooth 1 syz, C unreliable 2366 1412d 1568d 22/29 1271d e36bea6e78ab Bluetooth: core: Fix deadlock on hci_power_on_sync.
BUG: corrupted list in hci_conn_add_sysfs bluetooth 19 syz, C error done 9 1425d 1425d 22/29 1271d 448a496f7606 Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times
WARNING: ODEBUG bug in __cancel_work bluetooth -1 syz, C inconclusive 1 1464d 1460d 22/29 1271d 2d2cb3066f2c Bluetooth: L2CAP: initialize delayed works at l2cap_chan_create()
upstream test error: WARNING: ODEBUG bug in mgmt_index_removed bluetooth -1 551 1467d 1475d 22/29 1271d 3f2893d3c142 Bluetooth: don't try to cancel uninitialized works at mgmt_index_removed()
memory leak in vhci_write bluetooth 3 syz, C 1 1463d 1459d 22/29 1271d 7c9524d92964 Bluetooth: L2CAP: Fix memory leak in vhci_write
INFO: trying to register non-static key in hci_uart_flush (2) bluetooth -1 syz error error 37 1399d 2540d 22/29 1271d 3124d320c22f Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
WARNING: ODEBUG bug in bt_host_release bluetooth -1 syz done done 7 1953d 2206d 22/29 1428d e2cb6b891ad2 bluetooth: eliminate the potential race condition when removing the HCI controller
general protection fault in hci_inquiry_result_with_rssi_evt bluetooth 2 syz, C done 17 1684d 1709d 20/29 1552d 72279d17df54 Bluetooth: hci_event: Rework hci_inquiry_result_with_rssi_evt
KASAN: slab-out-of-bounds Read in add_adv_patterns_monitor bluetooth 17 syz, C error done 5 2007d 2028d 20/29 1558d b4a221ea8a1f Bluetooth: advmon offload MSFT add rssi support
INFO: trying to register non-static key in l2cap_sock_teardown_cb bluetooth -1 syz, C done done 88 1752d 2055d 20/29 1624d 1bff51ea59a9 Bluetooth: fix use-after-free error in lock_sock_nested()
KASAN: null-ptr-deref Write in l2cap_chan_put bluetooth 21 syz done done 7 1756d 2201d 20/29 1624d 1bff51ea59a9 Bluetooth: fix use-after-free error in lock_sock_nested()
memory leak in mgmt_cmd_complete bluetooth 3 syz, C 3 1819d 1919d 20/29 1624d 709fca500067 Bluetooth: hci_sock: purge socket queues in the destruct() callback
KASAN: slab-out-of-bounds Read in hci_le_meta_evt (2) bluetooth 17 syz, C inconclusive 2 1752d 1752d 20/29 1624d 3a56ef719f0b Bluetooth: stop proccessing malicious adv data
BUG: sleeping function called from invalid context in lock_sock_nested (2) bluetooth 5 syz, C done error 19391 1833d 2369d 20/29 1742d e04480920d1e Bluetooth: defer cleanup of resources in hci_unregister_dev() Bluetooth: defer cleanup of resources in hci_unregister_dev()
INFO: trying to register non-static key in l2cap_chan_del bluetooth -1 syz inconclusive 73 1985d 2204d 20/29 1742d 3af70b39fa2d Bluetooth: check for zapped sk before connecting
inconsistent lock state in sco_sock_timeout bluetooth 4 syz, C done 16 1847d 2192d 20/29 1742d ba316be1b6a0 Bluetooth: schedule SCO timeouts with delayed_work
general protection fault in hci_release_dev bluetooth 2 syz, C done 41 1821d 1842d 20/29 1742d e04480920d1e Bluetooth: defer cleanup of resources in hci_unregister_dev()
INFO: trying to register non-static key in skb_dequeue bluetooth -1 syz, C error 28951 1928d 2209d 20/29 1742d be8597239379 Bluetooth: initialize skb_queue_head at l2cap_chan_create()
BUG: corrupted list in kobject_add_internal (3) bluetooth 8 syz, C inconclusive 3 1778d 1882d 20/29 1742d 92fe24a7db75 Bluetooth: skip invalid hci_sync_conn_complete_evt
KASAN: use-after-free Read in hci_send_acl bluetooth 19 syz, C done 2 1996d 2206d 20/29 1742d 5c4c8c954409 Bluetooth: verify AMP hci_chan before amp_destroy
INFO: task hung in hci_req_sync bluetooth 1 syz, C inconclusive 1 1836d 1832d 20/29 1742d f41a4b2b5eb7 Bluetooth: add timeout sanity check to hci_inquiry
KASAN: null-ptr-deref Write in amp_read_loc_assoc_final_data bluetooth 12 syz, C done 185 2008d 2209d 20/29 1956d e8bd76ede155 Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data
KASAN: slab-out-of-bounds Read in hci_le_meta_evt bluetooth 17 syz, C error error 45 2085d 2206d 19/29 1987d f7e0e8b2f1b0 Bluetooth: Fix slab-out-of-bounds read in hci_le_direct_adv_report_evt()
memory leak in h5_rx_pkt_start bluetooth 3 syz, C 5 2184d 2528d 19/29 1987d 70f259a3f427 Bluetooth: hci_h5: close serdev device and free hu in h5_close 855af2d74c87 Bluetooth: hci_h5: fix memory leak in h5_close
KASAN: use-after-free Write in __sco_sock_close bluetooth 22 syz, C done done 10 2109d 2206d 19/29 1987d 6dfccd13db2f Bluetooth: Fix null pointer dereference in hci_event_packet()
general protection fault in hci_event_packet bluetooth 2 syz, C done 25 2153d 2206d 19/29 1987d 6dfccd13db2f Bluetooth: Fix null pointer dereference in hci_event_packet()
BUG: corrupted list in kobject_add_internal bluetooth 8 syz, C done done 9 2139d 2202d 15/29 2101d a46b7ed4d52d Bluetooth: Fix auto-creation of hci_conn at Conn Complete event
WARNING: refcount bug in do_enable_set bluetooth 13 syz, C inconclusive done 8 2203d 2313d 15/29 2101d b83764f9220a Bluetooth: Fix kernel oops triggered by hci_adv_monitors_clear()
KASAN: use-after-free Write in refcount_warn_saturate bluetooth 22 syz, C inconclusive done 2 2204d 2363d 15/29 2101d b83764f9220a Bluetooth: Fix kernel oops triggered by hci_adv_monitors_clear()
memory leak in read_adv_mon_features bluetooth 3 syz, C 2 2170d 2194d 15/29 2101d cafd472a10ff Bluetooth: Fix memory leak in read_adv_mon_features()
KASAN: slab-out-of-bounds Read in hci_extended_inquiry_result_evt bluetooth 17 syz, C 16 2205d 2232d 15/29 2161d 51c19bf3d5cf Bluetooth: Fix slab-out-of-bounds read in hci_extended_inquiry_result_evt()
KASAN: slab-out-of-bounds Read in hci_inquiry_result_with_rssi_evt bluetooth 17 syz, C error 9 2206d 2226d 15/29 2161d 629b49c848ee Bluetooth: Prevent out-of-bounds read in hci_inquiry_result_with_rssi_evt()
WARNING: ODEBUG bug in rfcomm_dev_ioctl bluetooth -1 1 2355d 2355d 15/29 2291d 71811cac8532 Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl
linux-next test error: KASAN: use-after-free Read in l2cap_sock_release bluetooth -1 12 2386d 2387d 15/29 2291d 2a154903cec2 Bluetooth: prefetch channel before killing sock
KASAN: use-after-free Write in hci_sock_bind bluetooth 22 4 2375d 2407d 15/29 2373d 11eb85ec42dc Bluetooth: Fix race condition in hci_release_sock()
KMSAN: use-after-free in kfree_skb bluetooth 18 syz 34 2457d 2505d 15/29 2440d cf94da6f502d Bluetooth: Fix invalid-free in bcsp_close()
KMSAN: use-after-free in skb_dequeue bluetooth 18 syz, C 1 2500d 2500d 15/29 2440d cf94da6f502d Bluetooth: Fix invalid-free in bcsp_close()
KASAN: invalid-free in skb_free_head bluetooth 24 syz, C done 1 2482d 2482d 15/29 2440d cf94da6f502d Bluetooth: Fix invalid-free in bcsp_close()
general protection fault in qca_setup arm-msm bluetooth 2 syz, C done done 6 2745d 2745d 13/29 2473d b36a1552d731 Bluetooth: hci_uart: check for missing tty operations
BUG: unable to handle kernel NULL pointer dereference in hci_uart_set_flow_control bluetooth 10 syz, C done 7 2707d 2707d 12/29 2561d b36a1552d731 Bluetooth: hci_uart: check for missing tty operations
memory leak in bcsp_recv bluetooth 3 syz, C 3 2614d 2642d 12/29 2570d 4ce9146e0370 Bluetooth: hci_bcsp: Fix memory leak in rx_skb
WARNING in lockdep_unregister_key bluetooth -1 syz, C done 214 2703d 2717d 11/29 2696d 82efcab3b9f3 workqueue: Only unregister a registered lockdep key
general protection fault in hci_uart_write_work bluetooth 2 syz, C 84 2724d 2773d 11/29 2700d 32a7b4cbe93b Bluetooth: hci_ldisc: Initialize hci_dev before open()
KASAN: use-after-free Read in h5_reset_rx bluetooth 19 2 2731d 2736d 11/29 2700d 56897b217a1d Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto()
BUG: unable to handle kernel paging request in h4_recv_buf bluetooth 8 syz, C 203 2723d 2785d 11/29 2700d 1dc2d785156c Bluetooth: hci_uart: Check if socket buffer is ERR_PTR in h4_recv_buf()