IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready Bluetooth: hci10: command 0x0409 tx timeout Bluetooth: hci10: command 0x041b tx timeout Bluetooth: hci10: command 0x040f tx timeout Bluetooth: hci10: command 0x0419 tx timeout INFO: task syz-executor.5:31330 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.5 D29920 31330 24876 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: 0033:0x7f9fe8e0c0f9 Code: Bad RIP value. RSP: 002b:00007f9fe737e168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f9fe8f2bf80 RCX: 00007f9fe8e0c0f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f9fe8e67ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9fabd8df R14: 00007f9fe737e300 R15: 0000000000022000 INFO: task syz-executor.5:31342 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.5 D29920 31342 24876 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: 0033:0x7f9fe8e0c0f9 Code: Bad RIP value. RSP: 002b:00007f9fe735d168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f9fe8f2c050 RCX: 00007f9fe8e0c0f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f9fe8e67ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9fabd8df R14: 00007f9fe735d300 R15: 0000000000022000 INFO: task syz-executor.5:31350 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.5 D29920 31350 24876 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: 0033:0x7f9fe8e0c0f9 Code: Bad RIP value. RSP: 002b:00007f9fe733c168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f9fe8f2c120 RCX: 00007f9fe8e0c0f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f9fe8e67ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9fabd8df R14: 00007f9fe733c300 R15: 0000000000022000 INFO: task syz-executor.5:31353 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.5 D27936 31353 24876 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: 0033:0x7f9fe8e0c0f9 Code: Bad RIP value. RSP: 002b:00007f9fe731b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f9fe8f2c1f0 RCX: 00007f9fe8e0c0f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f9fe8e67ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9fabd8df R14: 00007f9fe731b300 R15: 0000000000022000 INFO: task syz-executor.5:31423 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.5 D28408 31423 24876 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: 0033:0x7f9fe8e0c0f9 Code: Bad RIP value. RSP: 002b:00007f9fdfefa168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f9fe8f2c2c0 RCX: 00007f9fe8e0c0f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f9fe8e67ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9fabd8df R14: 00007f9fdfefa300 R15: 0000000000022000 INFO: task syz-executor.5:31428 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.5 D30128 31428 24876 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: 0033:0x7f9fe8e0c0f9 Code: Bad RIP value. RSP: 002b:00007f9fdfed9168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f9fe8f2c390 RCX: 00007f9fe8e0c0f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f9fe8e67ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9fabd8df R14: 00007f9fdfed9300 R15: 0000000000022000 Showing all locks held in the system: 3 locks held by kworker/u4:3/57: 1 lock held by khungtaskd/1571: #0: 000000002360128e (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7805: #0: 00000000f111c477 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 1 lock held by syz-executor.5/23720: #0: 000000004e2cf442 (&type->s_umount_key#103/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 000000004e2cf442 (&type->s_umount_key#103/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 1 lock held by syz-executor.5/24175: #0: 000000007da895b9 (&type->s_umount_key#103/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 000000007da895b9 (&type->s_umount_key#103/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 1 lock held by syz-executor.5/31330: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/31342: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/31350: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/31353: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/31423: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/31428: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/31734: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/31736: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/31737: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/32045: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/32046: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/32047: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/32049: #0: 000000004e2cf442 (&type->s_umount_key#104){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4687 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline] RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:31 [inline] RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:22 [inline] RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:350 [inline] RIP: 0010:rcu_is_watching+0x53/0xc0 kernel/rcu/tree.c:1025 Code: 00 af cf 89 48 89 f9 48 c1 e9 03 80 3c 11 00 75 6d 48 03 1c c5 00 af cf 89 be 04 00 00 00 48 8d 6b 10 48 89 ef e8 5d c2 46 00 <48> 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 48 RSP: 0018:ffff8880a10bfed8 EFLAGS: 00000246 RAX: ffffed101742455b RBX: ffff8880ba122ac0 RCX: ffffffff81518c83 RDX: ffffed101742455b RSI: 0000000000000004 RDI: ffff8880ba122ad0 RBP: ffff8880ba122ad0 R08: 0000000000000000 R09: ffffed101742455a R10: ffff8880ba122ad3 R11: 0000000000000000 R12: ffff8880a10b0440 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fe9c8c058c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe9c627a020 CR3: 00000000a1711000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock include/linux/rcupdate.h:628 [inline] __task_pid_nr_ns+0x357/0x4c0 kernel/pid.c:427 task_tgid_vnr include/linux/sched.h:1305 [inline] __ia32_sys_getpid+0x1a/0x20 kernel/sys.c:890 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe9c7e9df17 Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00 RSP: 002b:00007ffe44b7bd68 EFLAGS: 00000202 ORIG_RAX: 0000000000000027 RAX: ffffffffffffffda RBX: 00005596c49611e0 RCX: 00007fe9c7e9df17 RDX: 00000000000000e0 RSI: 0000000000000000 RDI: 00005596c49611e0 RBP: 0000000000000000 R08: 00005596c49614cc R09: 00005596c496125c R10: 00005596c49611e0 R11: 0000000000000202 R12: 000000000000124f R13: 00007ffe44b7bea8 R14: 00005596c38c7958 R15: 0005f62350ed5e03