IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready Bluetooth: hci7: command 0x0409 tx timeout Bluetooth: hci7: command 0x041b tx timeout Bluetooth: hci7: command 0x040f tx timeout Bluetooth: hci7: command 0x0419 tx timeout INFO: task syz-executor.0:28124 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.0 D28648 28124 8122 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_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] fuse_flush+0x1fd/0x5b0 fs/fuse/file.c:421 filp_close+0xb4/0x160 fs/open.c:1162 __close_fd+0x133/0x200 fs/file.c:636 __do_sys_close fs/open.c:1181 [inline] __se_sys_close fs/open.c:1179 [inline] __x64_sys_close+0x69/0x100 fs/open.c:1179 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f292b141f7b Code: Bad RIP value. RSP: 002b:00007fff47f069c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f292b141f7b RDX: 0000001b2e020000 RSI: 0000001b2e026688 RDI: 0000000000000004 RBP: 00007f292b2b1980 R08: 0000000000000000 R09: 000000003253460c R10: 000b325bf1274d20 R11: 0000000000000293 R12: 000000000007d559 R13: 00007fff47f06ac0 R14: 00007f292b2b0050 R15: 0000000000000032 INFO: task syz-executor.0:28125 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.0 D28152 28125 8122 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 fuse_wait_on_page_writeback fs/fuse/file.c:383 [inline] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 fs/fuse/file.c:379 fuse_launder_page fs/fuse/file.c:2033 [inline] fuse_launder_page+0xb6/0xe0 fs/fuse/file.c:2026 do_launder_page mm/truncate.c:655 [inline] invalidate_inode_pages2_range+0x795/0x1110 mm/truncate.c:725 fuse_finish_open+0x2e2/0x590 fs/fuse/file.c:182 fuse_open_common+0x254/0x2c0 fs/fuse/file.c:222 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x793/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f292b1900c9 Code: Bad RIP value. RSP: 002b:00007f2929702168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f292b2aff80 RCX: 00007f292b1900c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200001c0 RBP: 00007f292b1ebae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff47f0695f R14: 00007f2929702300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by ksoftirqd/0/9: #0: 000000005cae57c1 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 000000005cae57c1 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 2 locks held by kworker/u4:3/560: #0: 000000005cae57c1 (&rq->lock){-.-.}, at: idle_balance kernel/sched/fair.c:9702 [inline] #0: 000000005cae57c1 (&rq->lock){-.-.}, at: pick_next_task_fair+0x556/0x1570 kernel/sched/fair.c:6841 #1: 00000000cb8a2c6b (rcu_read_lock){....}, at: cpu_of kernel/sched/sched.h:923 [inline] #1: 00000000cb8a2c6b (rcu_read_lock){....}, at: __update_idle_core+0x39/0x3e0 kernel/sched/fair.c:6057 1 lock held by khungtaskd/1570: #0: 00000000cb8a2c6b (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 2 locks held by in:imklog/7800: #0: 00000000cc736600 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 #1: 000000005cae57c1 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #1: 000000005cae57c1 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 1 lock held by syz-executor.0/28124: #0: 00000000b17c1478 (&sb->s_type->i_mutex_key#31){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #0: 00000000b17c1478 (&sb->s_type->i_mutex_key#31){+.+.}, at: fuse_flush+0x1fd/0x5b0 fs/fuse/file.c:421 2 locks held by syz-executor.0/28125: #0: 000000007349f545 (sb_writers#27){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 000000007349f545 (sb_writers#27){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 00000000b17c1478 (&sb->s_type->i_mutex_key#31){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 00000000b17c1478 (&sb->s_type->i_mutex_key#31){+.+.}, at: fuse_open_common+0x1bc/0x2c0 fs/fuse/file.c:215 1 lock held by syz-executor.0/28651: #0: 00000000bc49fbe4 (&sb->s_type->i_mutex_key#31){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #0: 00000000bc49fbe4 (&sb->s_type->i_mutex_key#31){+.+.}, at: fuse_flush+0x1fd/0x5b0 fs/fuse/file.c:421 2 locks held by syz-executor.0/28652: #0: 0000000073eb2def (sb_writers#27){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 0000000073eb2def (sb_writers#27){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 00000000bc49fbe4 (&sb->s_type->i_mutex_key#31){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 00000000bc49fbe4 (&sb->s_type->i_mutex_key#31){+.+.}, at: fuse_open_common+0x1bc/0x2c0 fs/fuse/file.c:215 1 lock held by syz-executor.0/29023: #0: 0000000071dac8f6 (&sb->s_type->i_mutex_key#31){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #0: 0000000071dac8f6 (&sb->s_type->i_mutex_key#31){+.+.}, at: fuse_flush+0x1fd/0x5b0 fs/fuse/file.c:421 2 locks held by syz-executor.0/29024: #0: 00000000b77da382 (sb_writers#27){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000b77da382 (sb_writers#27){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 0000000071dac8f6 (&sb->s_type->i_mutex_key#31){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 0000000071dac8f6 (&sb->s_type->i_mutex_key#31){+.+.}, at: fuse_open_common+0x1bc/0x2c0 fs/fuse/file.c:215 ============================================= 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 10/26/2022 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 10/26/2022 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:lock_is_held_type+0x169/0x210 kernel/locking/lockdep.c:3948 Code: d0 7c 04 84 d2 75 6f 48 c7 c0 88 82 f1 89 48 ba 00 00 00 00 00 fc ff df c7 85 84 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 <75> 63 48 83 3d 45 cc a6 08 00 74 2c 48 89 df 57 9d 0f 1f 44 00 00 RSP: 0018:ffff8880a1307db8 EFLAGS: 00000046 RAX: 1ffffffff13e3051 RBX: 0000000000000286 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 00000000ffffffff RDI: ffff8880a12fed44 RBP: ffff8880a12fe4c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 000000001c90ee15 R12: 0000000000000000 R13: 0000000000001000 R14: 0000000000001100 R15: ffffffff81a6b6ce FS: 00007fa7cbfeb8c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa7c952f000 CR3: 00000000a1365000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_is_held include/linux/lockdep.h:344 [inline] rcu_read_lock_sched_held+0x16c/0x1d0 kernel/rcu/update.c:118 trace_kmem_cache_alloc include/trace/events/kmem.h:54 [inline] kmem_cache_alloc+0x315/0x370 mm/slab.c:3560 getname_flags+0xce/0x590 fs/namei.c:140 getname fs/namei.c:211 [inline] user_path_create fs/namei.c:3696 [inline] do_mkdirat+0x8d/0x2d0 fs/namei.c:3834 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa7cb2a6687 Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff1a802528 EFLAGS: 00000293 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007fff1a805440 RCX: 00007fa7cb2a6687 RDX: 00007fa7cbd17a00 RSI: 00000000000001ed RDI: 0000563edd86f8a0 RBP: 00007fff1a802560 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000069 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fff1a805440 R15: 00007fff1a802a50