INFO: task kworker/u4:0:7 blocked for more than 140 seconds. Not tainted 4.19.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:0 D24384 7 2 0x80000000 Workqueue: events_unbound fsnotify_connector_destroy_workfn Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_timeout+0x8c8/0xfc0 kernel/time/timer.c:1782 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common kernel/sched/completion.c:115 [inline] wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136 __synchronize_srcu+0x12e/0x210 kernel/rcu/srcutree.c:936 synchronize_srcu_expedited kernel/rcu/srcutree.c:961 [inline] synchronize_srcu+0x239/0x3e8 kernel/rcu/srcutree.c:1012 fsnotify_connector_destroy_workfn+0x4e/0xa0 fs/notify/mark.c:174 process_one_work+0x989/0x1750 kernel/workqueue.c:2153 worker_thread+0x98/0xe40 kernel/workqueue.c:2296 kthread+0x354/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task kworker/u4:5:687 blocked for more than 140 seconds. Not tainted 4.19.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:5 D25200 687 2 0x80000000 Workqueue: events_unbound fsnotify_mark_destroy_workfn Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_timeout+0x8c8/0xfc0 kernel/time/timer.c:1782 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common kernel/sched/completion.c:115 [inline] wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136 __synchronize_srcu+0x12e/0x210 kernel/rcu/srcutree.c:936 synchronize_srcu+0x2dc/0x3e8 kernel/rcu/srcutree.c:1014 fsnotify_mark_destroy_workfn+0x110/0x3b0 fs/notify/mark.c:795 process_one_work+0x989/0x1750 kernel/workqueue.c:2153 worker_thread+0x98/0xe40 kernel/workqueue.c:2296 kthread+0x354/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task syz-executor.5:9941 blocked for more than 140 seconds. Not tainted 4.19.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D27304 9941 9910 0x00000006 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_timeout+0x8c8/0xfc0 kernel/time/timer.c:1782 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common kernel/sched/completion.c:115 [inline] wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136 __flush_work+0x49f/0x870 kernel/workqueue.c:2926 __cancel_work_timer+0x3bf/0x520 kernel/workqueue.c:3013 cancel_delayed_work_sync+0x1b/0x20 kernel/workqueue.c:3145 htable_destroy net/netfilter/xt_hashlimit.c:414 [inline] htable_put+0x15f/0x220 net/netfilter/xt_hashlimit.c:443 hashlimit_mt_destroy_v1+0x50/0x70 net/netfilter/xt_hashlimit.c:972 cleanup_match+0xde/0x170 net/ipv6/netfilter/ip6_tables.c:481 find_check_entry.isra.0+0x4da/0x9d0 net/ipv6/netfilter/ip6_tables.c:585 translate_table+0xd15/0x1860 net/ipv6/netfilter/ip6_tables.c:737 do_replace net/ipv6/netfilter/ip6_tables.c:1156 [inline] do_ip6t_set_ctl+0x2ef/0x498 net/ipv6/netfilter/ip6_tables.c:1684 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt net/ipv6/ipv6_sockglue.c:938 [inline] ipv6_setsockopt+0x13e/0x170 net/ipv6/ipv6_sockglue.c:922 tcp_setsockopt net/ipv4/tcp.c:3077 [inline] tcp_setsockopt+0x8f/0xe0 net/ipv4/tcp.c:3071 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3046 __sys_setsockopt+0x17a/0x280 net/socket.c:1901 __do_sys_setsockopt net/socket.c:1912 [inline] __se_sys_setsockopt net/socket.c:1909 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1909 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b159 Code: Bad RIP value. RSP: 002b:00007f968bf58c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f968bf596d4 RCX: 000000000045b159 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000103 R09: 0000000000000000 R10: 0000000020000dc0 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d5 R14: 00000000004d3cb0 R15: 000000000075bf2c INFO: task syz-executor.1:10006 blocked for more than 140 seconds. Not tainted 4.19.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D28152 10006 9921 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 htable_put+0x21/0x220 net/netfilter/xt_hashlimit.c:440 hashlimit_mt_destroy_v1+0x50/0x70 net/netfilter/xt_hashlimit.c:972 cleanup_match+0xde/0x170 net/ipv6/netfilter/ip6_tables.c:481 find_check_entry.isra.0+0x4da/0x9d0 net/ipv6/netfilter/ip6_tables.c:585 translate_table+0xd15/0x1860 net/ipv6/netfilter/ip6_tables.c:737 do_replace net/ipv6/netfilter/ip6_tables.c:1156 [inline] do_ip6t_set_ctl+0x2ef/0x498 net/ipv6/netfilter/ip6_tables.c:1684 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt net/ipv6/ipv6_sockglue.c:938 [inline] ipv6_setsockopt+0x13e/0x170 net/ipv6/ipv6_sockglue.c:922 tcp_setsockopt net/ipv4/tcp.c:3077 [inline] tcp_setsockopt+0x8f/0xe0 net/ipv4/tcp.c:3071 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3046 __sys_setsockopt+0x17a/0x280 net/socket.c:1901 __do_sys_setsockopt net/socket.c:1912 [inline] __se_sys_setsockopt net/socket.c:1909 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1909 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b159 Code: Bad RIP value. RSP: 002b:00007f6cf5a05c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f6cf5a066d4 RCX: 000000000045b159 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000103 R09: 0000000000000000 R10: 0000000020000dc0 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d5 R14: 00000000004d3cb0 R15: 000000000075bf2c INFO: task syz-executor.2:10012 blocked for more than 140 seconds. Not tainted 4.19.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28152 10012 9922 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 htable_put+0x21/0x220 net/netfilter/xt_hashlimit.c:440 hashlimit_mt_destroy_v1+0x50/0x70 net/netfilter/xt_hashlimit.c:972 cleanup_match+0xde/0x170 net/ipv6/netfilter/ip6_tables.c:481 find_check_entry.isra.0+0x4da/0x9d0 net/ipv6/netfilter/ip6_tables.c:585 translate_table+0xd15/0x1860 net/ipv6/netfilter/ip6_tables.c:737 do_replace net/ipv6/netfilter/ip6_tables.c:1156 [inline] do_ip6t_set_ctl+0x2ef/0x498 net/ipv6/netfilter/ip6_tables.c:1684 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt net/ipv6/ipv6_sockglue.c:938 [inline] ipv6_setsockopt+0x13e/0x170 net/ipv6/ipv6_sockglue.c:922 tcp_setsockopt net/ipv4/tcp.c:3077 [inline] tcp_setsockopt+0x8f/0xe0 net/ipv4/tcp.c:3071 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3046 __sys_setsockopt+0x17a/0x280 net/socket.c:1901 __do_sys_setsockopt net/socket.c:1912 [inline] __se_sys_setsockopt net/socket.c:1909 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1909 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b159 Code: Bad RIP value. RSP: 002b:00007ff98bf41c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007ff98bf426d4 RCX: 000000000045b159 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000103 R09: 0000000000000000 R10: 0000000020000dc0 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d5 R14: 00000000004d3cb0 R15: 000000000075bf2c INFO: task syz-executor.3:10021 blocked for more than 140 seconds. Not tainted 4.19.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28696 10021 9920 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 hashlimit_mt_check_common.isra.0+0x341/0x1500 net/netfilter/xt_hashlimit.c:897 hashlimit_mt_check_v1+0x325/0x3ab net/netfilter/xt_hashlimit.c:926 xt_check_match+0x280/0x690 net/netfilter/x_tables.c:506 check_match net/ipv6/netfilter/ip6_tables.c:492 [inline] find_check_match net/ipv6/netfilter/ip6_tables.c:509 [inline] find_check_entry.isra.0+0x389/0x9d0 net/ipv6/netfilter/ip6_tables.c:560 translate_table+0xd15/0x1860 net/ipv6/netfilter/ip6_tables.c:737 do_replace net/ipv6/netfilter/ip6_tables.c:1156 [inline] do_ip6t_set_ctl+0x2ef/0x498 net/ipv6/netfilter/ip6_tables.c:1684 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt net/ipv6/ipv6_sockglue.c:938 [inline] ipv6_setsockopt+0x13e/0x170 net/ipv6/ipv6_sockglue.c:922 tcp_setsockopt net/ipv4/tcp.c:3077 [inline] tcp_setsockopt+0x8f/0xe0 net/ipv4/tcp.c:3071 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3046 __sys_setsockopt+0x17a/0x280 net/socket.c:1901 __do_sys_setsockopt net/socket.c:1912 [inline] __se_sys_setsockopt net/socket.c:1909 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1909 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b159 Code: Bad RIP value. RSP: 002b:00007efe1f38dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007efe1f38e6d4 RCX: 000000000045b159 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000103 R09: 0000000000000000 R10: 0000000020000dc0 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d5 R14: 00000000004d3cb0 R15: 000000000075bf2c INFO: task syz-executor.0:10023 blocked for more than 140 seconds. Not tainted 4.19.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28696 10023 9918 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 hashlimit_mt_check_common.isra.0+0x341/0x1500 net/netfilter/xt_hashlimit.c:897 hashlimit_mt_check_v1+0x325/0x3ab net/netfilter/xt_hashlimit.c:926 xt_check_match+0x280/0x690 net/netfilter/x_tables.c:506 check_match net/ipv6/netfilter/ip6_tables.c:492 [inline] find_check_match net/ipv6/netfilter/ip6_tables.c:509 [inline] find_check_entry.isra.0+0x389/0x9d0 net/ipv6/netfilter/ip6_tables.c:560 translate_table+0xd15/0x1860 net/ipv6/netfilter/ip6_tables.c:737 do_replace net/ipv6/netfilter/ip6_tables.c:1156 [inline] do_ip6t_set_ctl+0x2ef/0x498 net/ipv6/netfilter/ip6_tables.c:1684 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt net/ipv6/ipv6_sockglue.c:938 [inline] ipv6_setsockopt+0x13e/0x170 net/ipv6/ipv6_sockglue.c:922 tcp_setsockopt net/ipv4/tcp.c:3077 [inline] tcp_setsockopt+0x8f/0xe0 net/ipv4/tcp.c:3071 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3046 __sys_setsockopt+0x17a/0x280 net/socket.c:1901 __do_sys_setsockopt net/socket.c:1912 [inline] __se_sys_setsockopt net/socket.c:1909 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1909 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b159 Code: Bad RIP value. RSP: 002b:00007fe83e598c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fe83e5996d4 RCX: 000000000045b159 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000103 R09: 0000000000000000 R10: 0000000020000dc0 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d5 R14: 00000000004d3cb0 R15: 000000000075bf2c INFO: task syz-executor.0:10034 blocked for more than 140 seconds. Not tainted 4.19.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28696 10034 9918 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 hashlimit_mt_check_common.isra.0+0x341/0x1500 net/netfilter/xt_hashlimit.c:897 hashlimit_mt_check_v1+0x325/0x3ab net/netfilter/xt_hashlimit.c:926 xt_check_match+0x280/0x690 net/netfilter/x_tables.c:506 check_match net/ipv6/netfilter/ip6_tables.c:492 [inline] find_check_match net/ipv6/netfilter/ip6_tables.c:509 [inline] find_check_entry.isra.0+0x389/0x9d0 net/ipv6/netfilter/ip6_tables.c:560 translate_table+0xd15/0x1860 net/ipv6/netfilter/ip6_tables.c:737 do_replace net/ipv6/netfilter/ip6_tables.c:1156 [inline] do_ip6t_set_ctl+0x2ef/0x498 net/ipv6/netfilter/ip6_tables.c:1684 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt net/ipv6/ipv6_sockglue.c:938 [inline] ipv6_setsockopt+0x13e/0x170 net/ipv6/ipv6_sockglue.c:922 tcp_setsockopt net/ipv4/tcp.c:3077 [inline] tcp_setsockopt+0x8f/0xe0 net/ipv4/tcp.c:3071 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3046 __sys_setsockopt+0x17a/0x280 net/socket.c:1901 __do_sys_setsockopt net/socket.c:1912 [inline] __se_sys_setsockopt net/socket.c:1909 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1909 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b159 Code: Bad RIP value. RSP: 002b:00007fe83e556c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fe83e5576d4 RCX: 000000000045b159 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 RBP: 000000000075c070 R08: 0000000000000103 R09: 0000000000000000 R10: 0000000020000dc0 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d5 R14: 00000000004d3cb0 R15: 000000000075c07c INFO: task syz-executor.4:10028 blocked for more than 140 seconds. Not tainted 4.19.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28696 10028 9917 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 hashlimit_mt_check_common.isra.0+0x341/0x1500 net/netfilter/xt_hashlimit.c:897 hashlimit_mt_check_v1+0x325/0x3ab net/netfilter/xt_hashlimit.c:926 xt_check_match+0x280/0x690 net/netfilter/x_tables.c:506 check_match net/ipv6/netfilter/ip6_tables.c:492 [inline] find_check_match net/ipv6/netfilter/ip6_tables.c:509 [inline] find_check_entry.isra.0+0x389/0x9d0 net/ipv6/netfilter/ip6_tables.c:560 translate_table+0xd15/0x1860 net/ipv6/netfilter/ip6_tables.c:737 do_replace net/ipv6/netfilter/ip6_tables.c:1156 [inline] do_ip6t_set_ctl+0x2ef/0x498 net/ipv6/netfilter/ip6_tables.c:1684 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt net/ipv6/ipv6_sockglue.c:938 [inline] ipv6_setsockopt+0x13e/0x170 net/ipv6/ipv6_sockglue.c:922 tcp_setsockopt net/ipv4/tcp.c:3077 [inline] tcp_setsockopt+0x8f/0xe0 net/ipv4/tcp.c:3071 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3046 __sys_setsockopt+0x17a/0x280 net/socket.c:1901 __do_sys_setsockopt net/socket.c:1912 [inline] __se_sys_setsockopt net/socket.c:1909 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1909 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b159 Code: Bad RIP value. RSP: 002b:00007f75ab0e7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f75ab0e86d4 RCX: 000000000045b159 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000008 RBP: 000000000075bf20 R08: 0000000000000103 R09: 0000000000000000 R10: 0000000020000dc0 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d5 R14: 00000000004d3cb0 R15: 000000000075bf2c Showing all locks held in the system: 2 locks held by kworker/u4:0/7: #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: process_one_work+0x87e/0x1750 kernel/workqueue.c:2124 #1: 00000000f254c6fe (connector_reaper_work){+.+.}, at: process_one_work+0x8b4/0x1750 kernel/workqueue.c:2128 2 locks held by kworker/u4:5/687: #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 0000000048600030 ((wq_completion)"events_unbound"){+.+.}, at: process_one_work+0x87e/0x1750 kernel/workqueue.c:2124 #1: 000000006c34b412 ((reaper_work).work){+.+.}, at: process_one_work+0x8b4/0x1750 kernel/workqueue.c:2128 1 lock held by khungtaskd/1084: #0: 00000000c0c09c07 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4438 1 lock held by khugepaged/1091: #0: 00000000fe13d930 (pcpu_drain_mutex){+.+.}, at: drain_all_pages+0x4d/0x570 mm/page_alloc.c:2654 1 lock held by rsyslogd/8093: #0: 000000003c6d1a90 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:767 2 locks held by getty/8214: #0: 000000001a7af794 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 000000008c9b6151 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/8215: #0: 00000000386b89fd (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 000000007af47151 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/8216: #0: 000000006b1ef799 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 00000000d6f03169 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/8217: #0: 00000000b8b349bb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 0000000085ae1ae2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/8218: #0: 000000003062006b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 000000008e4c8d07 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/8219: #0: 00000000dc74f2b3 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 00000000fa0a6f20 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/8220: #0: 00000000a319d64a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 000000005c5c79c8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by kworker/1:1/24705: 1 lock held by syz-executor.5/9941: #0: 00000000e6a39f2b (hashlimit_mutex){+.+.}, at: htable_put+0x21/0x220 net/netfilter/xt_hashlimit.c:440 1 lock held by syz-executor.1/10006: #0: 00000000e6a39f2b (hashlimit_mutex){+.+.}, at: htable_put+0x21/0x220 net/netfilter/xt_hashlimit.c:440 1 lock held by syz-executor.2/10012: #0: 00000000e6a39f2b (hashlimit_mutex){+.+.}, at: htable_put+0x21/0x220 net/netfilter/xt_hashlimit.c:440 1 lock held by syz-executor.3/10021: #0: 00000000e6a39f2b (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 net/netfilter/xt_hashlimit.c:897 1 lock held by syz-executor.0/10023: #0: 00000000e6a39f2b (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 net/netfilter/xt_hashlimit.c:897 1 lock held by syz-executor.0/10034: #0: 00000000e6a39f2b (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 net/netfilter/xt_hashlimit.c:897 1 lock held by syz-executor.4/10028: #0: 00000000e6a39f2b (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 net/netfilter/xt_hashlimit.c:897 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1084 Comm: khungtaskd Not tainted 4.19.97-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x9df/0xee0 kernel/hung_task.c:287 kthread+0x354/0x420 kernel/kthread.c:246 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: 17112 Comm: kworker/u4:4 Not tainted 4.19.97-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker RIP: 0010:check_preemption_disabled+0x54/0x290 lib/smp_processor_id.c:52 Code: 7c 81 e3 ff ff ff 7f 31 ff 89 de e8 c6 f8 00 fe 85 db 74 1c e8 3d f7 00 fe e8 38 f7 00 fe 44 89 e8 48 83 c4 08 5b 41 5c 41 5d <41> 5e 41 5f 5d c3 e8 21 f7 00 fe 48 c7 c0 c0 5b f2 88 48 ba 00 00 RSP: 0018:ffff888043e17c78 EFLAGS: 00000296 RAX: 0000000000000001 RBX: 0000000000023980 RCX: ffffffff836a1e7a RDX: 0000000000000000 RSI: ffffffff836a1e88 RDI: 0000000000000005 RBP: ffff888043e17c88 R08: ffff888094fdc3c0 R09: ffffed1015d24733 R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000001 R13: 000000000000025d R14: ffffffff87eb2980 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f11c4001020 CR3: 000000009974b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_smp_processor_id+0x1c/0x20 lib/smp_processor_id.c:56 rcu_dynticks_curr_cpu_in_eqs+0x17/0xb0 kernel/rcu/tree.c:348 rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:1025 rcu_read_unlock include/linux/rcupdate.h:677 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:423 [inline] batadv_nc_worker+0x485/0x760 net/batman-adv/network-coding.c:730 process_one_work+0x989/0x1750 kernel/workqueue.c:2153 worker_thread+0x98/0xe40 kernel/workqueue.c:2296 kthread+0x354/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415