IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready Bluetooth: hci9: command 0x0409 tx timeout Bluetooth: hci9: command 0x041b tx timeout Bluetooth: hci9: command 0x040f tx timeout Bluetooth: hci9: command 0x0419 tx timeout INFO: task syz-executor.2:10666 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.2 D29736 10666 8169 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: 0033:0x7f5ef6d7a0c9 Code: Bad RIP value. RSP: 002b:00007f5ef52ec168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f5ef6e99f80 RCX: 00007f5ef6d7a0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f5ef6dd5ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5f736dbf R14: 00007f5ef52ec300 R15: 0000000000022000 INFO: task syz-executor.2:10674 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.2 D29752 10674 8169 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: 0033:0x7f5ef6d7a0c9 Code: Bad RIP value. RSP: 002b:00007f5ef52cb168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f5ef6e9a050 RCX: 00007f5ef6d7a0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f5ef6dd5ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5f736dbf R14: 00007f5ef52cb300 R15: 0000000000022000 INFO: task syz-executor.2:10687 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.2 D29920 10687 8169 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: 0033:0x7f5ef6d7a0c9 Code: Bad RIP value. RSP: 002b:00007f5ef52aa168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f5ef6e9a120 RCX: 00007f5ef6d7a0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f5ef6dd5ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5f736dbf R14: 00007f5ef52aa300 R15: 0000000000022000 INFO: task syz-executor.2:10689 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.2 D30024 10689 8169 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: 0033:0x7f5ef6d7a0c9 Code: Bad RIP value. RSP: 002b:00007f5ef5289168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f5ef6e9a1f0 RCX: 00007f5ef6d7a0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f5ef6dd5ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5f736dbf R14: 00007f5ef5289300 R15: 0000000000022000 INFO: task syz-executor.2:10695 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.2 D29920 10695 8169 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: 0033:0x7f5ef6d7a0c9 Code: Bad RIP value. RSP: 002b:00007f5ef5268168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f5ef6e9a2c0 RCX: 00007f5ef6d7a0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f5ef6dd5ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5f736dbf R14: 00007f5ef5268300 R15: 0000000000022000 INFO: task syz-executor.2:10700 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.2 D25224 10700 8169 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: 0033:0x7f5ef6d7a0c9 Code: Bad RIP value. RSP: 002b:00007f5ef5247168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f5ef6e9a390 RCX: 00007f5ef6d7a0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f5ef6dd5ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5f736dbf R14: 00007f5ef5247300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by ksoftirqd/0/9: #0: 0000000019943a36 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 0000000019943a36 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 5 locks held by kworker/u4:1/23: #0: 0000000019943a36 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 0000000019943a36 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 #1: 00000000ffa5d662 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 00000000ffa5d662 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857 #2: 000000009646c5ff (&wdev->mtx){+.+.}, at: sdata_lock net/mac80211/ieee80211_i.h:977 [inline] #2: 000000009646c5ff (&wdev->mtx){+.+.}, at: ieee80211_ibss_work+0x85/0xe10 net/mac80211/ibss.c:1675 #3: 00000000ffa5d662 (rcu_read_lock){....}, at: sdata_assert_lock net/mac80211/ieee80211_i.h:994 [inline] #3: 00000000ffa5d662 (rcu_read_lock){....}, at: ieee80211_sta_active_ibss+0x86/0x350 net/mac80211/ibss.c:668 #4: 00000000a9e0e6b9 (&obj_hash[i].lock){-.-.}, at: debug_object_active_state lib/debugobjects.c:725 [inline] #4: 00000000a9e0e6b9 (&obj_hash[i].lock){-.-.}, at: debug_object_active_state+0x104/0x330 lib/debugobjects.c:713 1 lock held by khungtaskd/1571: #0: 00000000ffa5d662 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7814: #0: 00000000fcefa30b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by kworker/u4:7/9477: 1 lock held by syz-executor.4/10457: #0: 0000000054c36de2 (&type->s_umount_key#54/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 0000000054c36de2 (&type->s_umount_key#54/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 1 lock held by syz-executor.2/10666: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/10674: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/10687: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/10689: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/10695: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/10700: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.4/11025: #0: 00000000031f5cab (&type->s_umount_key#54/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 00000000031f5cab (&type->s_umount_key#54/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 1 lock held by syz-executor.2/11733: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/11734: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/11735: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/11736: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/11737: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/12098: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/12099: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/12100: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/12101: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.2/12102: #0: 0000000054c36de2 (&type->s_umount_key#72){.+.+}, at: iterate_supers+0xdb/0x290 fs/super.c:631 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1571 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: 10 Comm: rcu_preempt Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:sched_info_arrive kernel/sched/stats.h:96 [inline] RIP: 0010:__sched_info_switch kernel/sched/stats.h:150 [inline] RIP: 0010:sched_info_switch kernel/sched/stats.h:157 [inline] RIP: 0010:prepare_task_switch kernel/sched/core.c:2611 [inline] RIP: 0010:context_switch kernel/sched/core.c:2793 [inline] RIP: 0010:__schedule+0xb1c/0x2040 kernel/sched/core.c:3517 Code: fa 48 29 d8 48 85 db 48 0f 45 d8 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 81 10 00 00 49 01 9d b8 03 00 00 <49> 8d bd c0 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffff8880b5a67b58 EFLAGS: 00000002 RAX: dffffc0000000000 RBX: 000000000043ab58 RCX: 0000007180cebfcc RDX: 1ffff11013d050df RSI: 00000000ffffffff RDI: ffff88809e8286f8 RBP: ffff8880b5a67c20 R08: 0000000000000000 R09: ffff8880ba02bb10 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b5a4e280 R13: ffff88809e828340 R14: 0000007180cebfcc R15: ffff8880ba02b0c0 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f56fcc79018 CR3: 00000000a118e000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x4cf/0xfe0 kernel/time/timer.c:1818 rcu_gp_kthread+0xdad/0x21c0 kernel/rcu/tree.c:2202 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415