Bluetooth: hci9 command 0x0409 tx timeout Bluetooth: hci9 command 0x041b tx timeout Bluetooth: hci7 command 0x0406 tx timeout Bluetooth: hci9 command 0x040f tx timeout Bluetooth: hci9 command 0x0419 tx timeout INFO: task syz-executor.4:9897 blocked for more than 140 seconds. Not tainted 4.14.295-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28912 9897 8015 0x00000004 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x343/0x6d0 kernel/locking/rwsem-xadd.c:617 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 inode_lock include/linux/fs.h:719 [inline] fuse_flush+0x1c7/0x520 fs/fuse/file.c:423 filp_close+0x9d/0x140 fs/open.c:1158 __close_fd+0x151/0x230 fs/file.c:639 SYSC_close fs/open.c:1177 [inline] SyS_close+0x42/0x90 fs/open.c:1175 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fed7543037b RSP: 002b:00007ffe6d49d230 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fed7543037b RDX: 0000001b30420000 RSI: 0000001b30425dc0 RDI: 0000000000000004 RBP: 00007fed755a1980 R08: 0000000000000000 R09: 00000000a1181158 R10: 001371a02187839c R11: 0000000000000293 R12: 000000000004d4eb R13: 00007ffe6d49d330 R14: 00007fed755a0120 R15: 0000000000000032 INFO: task syz-executor.4:9903 blocked for more than 140 seconds. Not tainted 4.14.295-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28128 9903 8015 0x00000004 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 fuse_wait_on_page_writeback fs/fuse/file.c:385 [inline] fuse_wait_on_page_writeback.isra.0+0xdc/0x120 fs/fuse/file.c:381 fuse_launder_page fs/fuse/file.c:2042 [inline] fuse_launder_page+0xa2/0xd0 fs/fuse/file.c:2035 do_launder_page mm/truncate.c:609 [inline] invalidate_inode_pages2_range+0x547/0xc00 mm/truncate.c:685 fuse_finish_open+0x262/0x500 fs/fuse/file.c:181 fuse_open_common+0x214/0x290 fs/fuse/file.c:224 do_dentry_open+0x44b/0xec0 fs/open.c:777 vfs_open+0x105/0x220 fs/open.c:888 do_last fs/namei.c:3428 [inline] path_openat+0x628/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fed7547e5a9 RSP: 002b:00007fed73df2168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fed7559ff80 RCX: 00007fed7547e5a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007fed754d9580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe6d49d1cf R14: 00007fed73df2300 R15: 0000000000022000 INFO: task syz-executor.4:9917 blocked for more than 140 seconds. Not tainted 4.14.295-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D29128 9917 8015 0x00000004 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 io_schedule+0xb5/0x120 kernel/sched/core.c:5035 wait_on_page_bit_common mm/filemap.c:1025 [inline] __lock_page+0x27b/0x380 mm/filemap.c:1197 lock_page include/linux/pagemap.h:480 [inline] invalidate_inode_pages2_range+0x6da/0xc00 mm/truncate.c:657 fuse_finish_open+0x262/0x500 fs/fuse/file.c:181 fuse_open_common+0x234/0x290 fs/fuse/file.c:224 do_dentry_open+0x44b/0xec0 fs/open.c:777 vfs_open+0x105/0x220 fs/open.c:888 do_last fs/namei.c:3428 [inline] path_openat+0x628/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fed7547e5a9 RSP: 002b:00007fed73dd1168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fed755a0050 RCX: 00007fed7547e5a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200001c0 RBP: 00007fed754d9580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe6d49d1cf R14: 00007fed73dd1300 R15: 0000000000022000 INFO: task syz-executor.4:10272 blocked for more than 140 seconds. Not tainted 4.14.295-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28912 10272 10029 0x00000004 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x343/0x6d0 kernel/locking/rwsem-xadd.c:617 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 inode_lock include/linux/fs.h:719 [inline] fuse_flush+0x1c7/0x520 fs/fuse/file.c:423 filp_close+0x9d/0x140 fs/open.c:1158 __close_fd+0x151/0x230 fs/file.c:639 SYSC_close fs/open.c:1177 [inline] SyS_close+0x42/0x90 fs/open.c:1175 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f60443b537b RSP: 002b:00007ffdf0738d90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f60443b537b RDX: 0000001b2e820000 RSI: 00007f6043f7c580 RDI: 0000000000000004 RBP: 00007f6044526980 R08: 0000000000000000 R09: 00000000a1181158 R10: 0000f8ecbb0903d8 R11: 0000000000000293 R12: 000000000005bcdf R13: 00007ffdf0738e90 R14: 00007f6044525120 R15: 0000000000000032 INFO: task syz-executor.4:10273 blocked for more than 140 seconds. Not tainted 4.14.295-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28816 10273 10029 0x00000004 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 fuse_wait_on_page_writeback fs/fuse/file.c:385 [inline] fuse_wait_on_page_writeback.isra.0+0xdc/0x120 fs/fuse/file.c:381 fuse_launder_page fs/fuse/file.c:2042 [inline] fuse_launder_page+0xa2/0xd0 fs/fuse/file.c:2035 do_launder_page mm/truncate.c:609 [inline] invalidate_inode_pages2_range+0x547/0xc00 mm/truncate.c:685 fuse_finish_open+0x262/0x500 fs/fuse/file.c:181 fuse_open_common+0x214/0x290 fs/fuse/file.c:224 do_dentry_open+0x44b/0xec0 fs/open.c:777 vfs_open+0x105/0x220 fs/open.c:888 do_last fs/namei.c:3428 [inline] path_openat+0x628/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f60444035a9 RSP: 002b:00007f6042d77168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f6044524f80 RCX: 00007f60444035a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007f604445e580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdf0738d2f R14: 00007f6042d77300 R15: 0000000000022000 INFO: task syz-executor.4:10278 blocked for more than 140 seconds. Not tainted 4.14.295-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D29136 10278 10029 0x00000004 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 io_schedule+0xb5/0x120 kernel/sched/core.c:5035 wait_on_page_bit_common mm/filemap.c:1025 [inline] __lock_page+0x27b/0x380 mm/filemap.c:1197 lock_page include/linux/pagemap.h:480 [inline] invalidate_inode_pages2_range+0x6da/0xc00 mm/truncate.c:657 fuse_finish_open+0x262/0x500 fs/fuse/file.c:181 fuse_open_common+0x234/0x290 fs/fuse/file.c:224 do_dentry_open+0x44b/0xec0 fs/open.c:777 vfs_open+0x105/0x220 fs/open.c:888 do_last fs/namei.c:3428 [inline] path_openat+0x628/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f60444035a9 RSP: 002b:00007f6042d56168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f6044525050 RCX: 00007f60444035a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200001c0 RBP: 00007f604445e580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdf0738d2f R14: 00007f6042d56300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1533: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548 1 lock held by syz-executor.4/9897: #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_flush+0x1c7/0x520 fs/fuse/file.c:423 2 locks held by syz-executor.4/9917: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_open_common+0x1a4/0x290 fs/fuse/file.c:217 1 lock held by syz-executor.4/10272: #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_flush+0x1c7/0x520 fs/fuse/file.c:423 2 locks held by syz-executor.4/10278: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_open_common+0x1a4/0x290 fs/fuse/file.c:217 1 lock held by syz-executor.4/10575: #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_flush+0x1c7/0x520 fs/fuse/file.c:423 2 locks held by syz-executor.4/10581: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_open_common+0x1a4/0x290 fs/fuse/file.c:217 1 lock held by syz-executor.4/10899: #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_flush+0x1c7/0x520 fs/fuse/file.c:423 2 locks held by syz-executor.4/10905: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_open_common+0x1a4/0x290 fs/fuse/file.c:217 1 lock held by syz-executor.4/11200: #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #0: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_flush+0x1c7/0x520 fs/fuse/file.c:423 2 locks held by syz-executor.4/11206: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] fuse_open_common+0x1a4/0x290 fs/fuse/file.c:217 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.295-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x5b9/0xb40 kernel/hung_task.c:274 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 35 Comm: kworker/u4:2 Not tainted 4.14.295-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Workqueue: bat_events batadv_nc_worker task: ffff8880b56b6200 task.stack: ffff8880b56c0000 RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 kernel/kcov.c:60 RSP: 0018:ffff8880b56c7cd0 EFLAGS: 00000246 RAX: 1ffff11011b0db2c RBX: ffff88808d86d960 RCX: 1ffffffff11991ad RDX: 0000000000000000 RSI: ffffffff87cd0680 RDI: ffff8880ba52ca8c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000020011 R10: ffff8880b56b6ad8 R11: ffff8880b56b6200 R12: dffffc0000000000 R13: ffff8880b545f600 R14: ffff88813fe468c0 R15: ffff8880a4e7d000 FS: 0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f20c1508000 CR3: 000000009e897000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_unlock include/linux/rcupdate.h:681 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:422 [inline] batadv_nc_worker+0x565/0xc50 net/batman-adv/network-coding.c:728 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: ff ff 48 89 df e8 41 ba 29 00 e9 9f fe ff ff 4c 89 e7 e8 34 ba 29 00 e9 2c fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <65> 48 8b 04 25 c0 7f 02 00 48 85 c0 74 1a 65 8b 15 7b 37 ad 7e