Bluetooth: hci11: command 0x041b tx timeout Bluetooth: hci11: command 0x040f tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 Bluetooth: hci11: command 0x0419 tx timeout INFO: task syz-executor.3:16215 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28648 16215 8151 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x44/0x80 kernel/locking/rwsem.c:26 iterate_supers+0xdb/0x290 fs/super.c:631 ksys_sync+0x86/0x150 fs/sync.c:113 __ia32_sys_sync+0xa/0x10 fs/sync.c:124 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe8e404e0c9 Code: Bad RIP value. RSP: 002b:00007fe8e25c0168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007fe8e416df80 RCX: 00007fe8e404e0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fe8e40a9ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5a51e13f R14: 00007fe8e25c0300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 000000009ae0214f (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by syz-executor.5/12205: #0: 000000000a72d3d4 (&type->s_umount_key#75/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 000000000a72d3d4 (&type->s_umount_key#75/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 1 lock held by syz-executor.5/12689: #0: 000000006de1ba62 (&type->s_umount_key#75/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 000000006de1ba62 (&type->s_umount_key#75/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 1 lock held by syz-executor.3/16215: #0: 000000000a72d3d4 (&type->s_umount_key#76){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 3 locks held by syz-executor.5/19838: #0: 000000005ec09bfa (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 #1: 00000000ed2f2853 (sb_writers#4){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline] #1: 00000000ed2f2853 (sb_writers#4){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548 #2: 000000000a72d3d4 (&type->s_umount_key#76){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 3 locks held by syz-executor.5/20209: #0: 00000000b20837b3 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 #1: 00000000ed2f2853 (sb_writers#4){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline] #1: 00000000ed2f2853 (sb_writers#4){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548 #2: 000000000a72d3d4 (&type->s_umount_key#76){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4689 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:___bpf_prog_run+0x1cac/0x4e80 kernel/bpf/core.c:1101 Code: 69 26 00 00 41 8b 4e 04 49 83 c6 08 d3 e0 49 89 07 e9 a8 e3 ff ff e8 33 32 f6 ff 49 8d 7e 04 48 89 f8 48 c1 e8 03 0f b6 14 18 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 13 30 00 00 49 RSP: 0018:ffff8880a1287a30 EFLAGS: 00000a07 RAX: 1ffff92000364c3c RBX: dffffc0000000000 RCX: ffffffff816c5cc8 RDX: 0000000000000000 RSI: ffffffff816c533d RDI: ffffc90001b261e4 RBP: ffff8880a1287b00 R08: 0000000000000000 R09: 00000000000000e4 R10: 0000000000000006 R11: 0000000000000000 R12: ffffffff886fb460 R13: ffffed1014250f62 R14: ffffc90001b261e0 R15: 00000000000000b4 FS: 00007ffaa3c868c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffaa1205018 CR3: 00000000a1a40000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: