netlink: 88 bytes leftover after parsing attributes in process `syz-executor.3'. Bluetooth: hci2: command 0x0406 tx timeout INFO: task syz-executor.4:7766 blocked for more than 143 seconds. Not tainted 5.10.154 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27952 pid: 7766 ppid: 288 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:3797 [inline] __schedule+0x848/0x1e90 kernel/sched/core.c:4546 schedule+0xcb/0x270 kernel/sched/core.c:4624 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4683 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7cd/0x1260 kernel/locking/mutex.c:1109 perf_event_ctx_lock_nested+0x243/0x4a0 kernel/events/core.c:1386 perf_event_ctx_lock kernel/events/core.c:1399 [inline] perf_event_release_kernel+0x3a6/0xc20 kernel/events/core.c:5072 perf_release+0x33/0x50 kernel/events/core.c:5170 __fput+0x285/0x980 fs/file_table.c:281 task_work_run+0xe2/0x1a0 kernel/task_work.c:151 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0x155/0x160 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x38/0x230 kernel/entry/common.c:266 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7faf804fc72b RSP: 002b:00007ffe704885b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 00007faf804fc72b RDX: ffffffffffffffbc RSI: 0000000000000080 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffe704886a0 R11: 0000000000000293 R12: 00000000000ccfe3 R13: 00000000000003e8 R14: 00007faf8065cf60 R15: 00000000000ccf53 INFO: task syz-executor.4:7773 blocked for more than 143 seconds. Not tainted 5.10.154 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27480 pid: 7773 ppid: 288 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:3797 [inline] __schedule+0x848/0x1e90 kernel/sched/core.c:4546 schedule+0xcb/0x270 kernel/sched/core.c:4624 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4683 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7cd/0x1260 kernel/locking/mutex.c:1109 mutex_lock_double kernel/events/core.c:11596 [inline] __perf_event_ctx_lock_double kernel/events/core.c:11740 [inline] __do_sys_perf_event_open+0x1248/0x2cb0 kernel/events/core.c:12013 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7faf80549b19 RSP: 002b:00007faf7dabf188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007faf8065cf60 RCX: 00007faf80549b19 RDX: 0000000000000000 RSI: 0000000000000118 RDI: 0000000020001d80 RBP: 00007faf805a3f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe7048854f R14: 00007faf7dabf300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84ff81a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6390 1 lock held by jbd2/sda-8/77: 2 locks held by rs:main Q:Reg/179: 2 locks held by kworker/u4:4/314: #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x8ac/0x1590 kernel/workqueue.c:2250 #1: ffff88804514fda8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x8df/0x1590 kernel/workqueue.c:2254 1 lock held by syz-executor.4/7766: #0: ffff8880450774b0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_ctx_lock_nested+0x243/0x4a0 kernel/events/core.c:1386 3 locks held by syz-executor.4/7773: #0: ffff88804d57c6d8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfc5/0x2cb0 kernel/events/core.c:11995 #1: ffff8880450774b0 (&ctx->mutex){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11595 [inline] #1: ffff8880450774b0 (&ctx->mutex){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11740 [inline] #1: ffff8880450774b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x123b/0x2cb0 kernel/events/core.c:12013 #2: ffff8880450774b0 (&ctx->mutex/1){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11596 [inline] #2: ffff8880450774b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11740 [inline] #2: ffff8880450774b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1248/0x2cb0 kernel/events/core.c:12013 =============================================