INFO: task syz-executor.1:8008 blocked for more than 143 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D29496 8008 7960 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 virtio_transport_release+0xa7/0xb20 net/vmw_vsock/virtio_transport_common.c:819 vsock_assign_transport+0xc3/0x2e0 net/vmw_vsock/af_vsock.c:454 vsock_stream_connect+0x263/0xad0 net/vmw_vsock/af_vsock.c:1288 __sys_connect_file+0x133/0x190 net/socket.c:1844 __sys_connect+0x104/0x140 net/socket.c:1861 __do_sys_connect net/socket.c:1872 [inline] __se_sys_connect net/socket.c:1869 [inline] __x64_sys_connect+0x6e/0xb0 net/socket.c:1869 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: 48 8b 5c 24 30 48 01 d8 48 89 04 24 48 89 4c 24 08 e8 db 67 fa ff 48 8b 4c 24 10 48 8b 44 24 18 48 ff c0 48 83 f8 06 7c ce 48 <89> 4c 24 40 48 8b 6c 24 20 48 83 c4 28 c3 e8 84 b4 ff ff eb 92 cc RSP: 002b:00007f26f37cac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f26f37cb6d4 RCX: 000000000045c449 RDX: 0000000000000010 RSI: 0000000020000440 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000096 R14: 00000000004c2eae R15: 000000000076bf2c INFO: task syz-executor.1:8010 blocked for more than 143 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D30024 8010 7960 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 lock_sock include/net/sock.h:1526 [inline] vsock_stream_setsockopt+0xe8/0x440 net/vmw_vsock/af_vsock.c:1547 __sys_setsockopt+0x213/0x440 net/socket.c:2117 __do_sys_setsockopt net/socket.c:2133 [inline] __se_sys_setsockopt net/socket.c:2130 [inline] __x64_sys_setsockopt+0xb9/0x150 net/socket.c:2130 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: 48 8b 5c 24 30 48 01 d8 48 89 04 24 48 89 4c 24 08 e8 db 67 fa ff 48 8b 4c 24 10 48 8b 44 24 18 48 ff c0 48 83 f8 06 7c ce 48 <89> 4c 24 40 48 8b 6c 24 20 48 83 c4 28 c3 e8 84 b4 ff ff eb 92 cc RSP: 002b:00007f26f37a9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f26f37aa6d4 RCX: 000000000045c449 RDX: 0000000000000002 RSI: 0000000000000028 RDI: 0000000000000003 RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a31 R14: 00000000004d5928 R15: 000000000076bfcc INFO: task syz-executor.1:8016 blocked for more than 143 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D30040 8016 7960 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 virtio_transport_release+0xa7/0xb20 net/vmw_vsock/virtio_transport_common.c:819 vsock_assign_transport+0xc3/0x2e0 net/vmw_vsock/af_vsock.c:454 vsock_stream_connect+0x263/0xad0 net/vmw_vsock/af_vsock.c:1288 __sys_connect_file+0x133/0x190 net/socket.c:1844 __sys_connect+0x104/0x140 net/socket.c:1861 __do_sys_connect net/socket.c:1872 [inline] __se_sys_connect net/socket.c:1869 [inline] __x64_sys_connect+0x6e/0xb0 net/socket.c:1869 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: Bad RIP value. RSP: 002b:00007f26f3767c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f26f37686d4 RCX: 000000000045c449 RDX: 0000000000000010 RSI: 0000000020000440 RDI: 0000000000000003 RBP: 000000000076c100 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000096 R14: 00000000004c2eae R15: 000000000076c10c INFO: task syz-executor.3:8013 blocked for more than 144 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D29776 8013 7958 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 virtio_transport_release+0xa7/0xb20 net/vmw_vsock/virtio_transport_common.c:819 vsock_assign_transport+0xc3/0x2e0 net/vmw_vsock/af_vsock.c:454 vsock_stream_connect+0x263/0xad0 net/vmw_vsock/af_vsock.c:1288 __sys_connect_file+0x133/0x190 net/socket.c:1844 __sys_connect+0x104/0x140 net/socket.c:1861 __do_sys_connect net/socket.c:1872 [inline] __se_sys_connect net/socket.c:1869 [inline] __x64_sys_connect+0x6e/0xb0 net/socket.c:1869 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: Bad RIP value. RSP: 002b:00007f90c7436c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f90c74376d4 RCX: 000000000045c449 RDX: 0000000000000010 RSI: 0000000020000440 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000096 R14: 00000000004c2eae R15: 000000000076bf2c INFO: task syz-executor.3:8014 blocked for more than 144 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D30264 8014 7958 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 lock_sock include/net/sock.h:1526 [inline] vsock_stream_setsockopt+0xe8/0x440 net/vmw_vsock/af_vsock.c:1547 __sys_setsockopt+0x213/0x440 net/socket.c:2117 __do_sys_setsockopt net/socket.c:2133 [inline] __se_sys_setsockopt net/socket.c:2130 [inline] __x64_sys_setsockopt+0xb9/0x150 net/socket.c:2130 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: Bad RIP value. RSP: 002b:00007f90c7415c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f90c74166d4 RCX: 000000000045c449 RDX: 0000000000000002 RSI: 0000000000000028 RDI: 0000000000000003 RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a31 R14: 00000000004d5928 R15: 000000000076bfcc INFO: task syz-executor.3:8018 blocked for more than 144 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D30040 8018 7958 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 virtio_transport_release+0xa7/0xb20 net/vmw_vsock/virtio_transport_common.c:819 vsock_assign_transport+0xc3/0x2e0 net/vmw_vsock/af_vsock.c:454 vsock_stream_connect+0x263/0xad0 net/vmw_vsock/af_vsock.c:1288 __sys_connect_file+0x133/0x190 net/socket.c:1844 __sys_connect+0x104/0x140 net/socket.c:1861 __do_sys_connect net/socket.c:1872 [inline] __se_sys_connect net/socket.c:1869 [inline] __x64_sys_connect+0x6e/0xb0 net/socket.c:1869 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: Bad RIP value. RSP: 002b:00007f90c73d3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f90c73d46d4 RCX: 000000000045c449 RDX: 0000000000000010 RSI: 0000000020000440 RDI: 0000000000000003 RBP: 000000000076c100 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000096 R14: 00000000004c2eae R15: 000000000076c10c INFO: task syz-executor.2:8021 blocked for more than 144 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D29248 8021 7963 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 virtio_transport_release+0xa7/0xb20 net/vmw_vsock/virtio_transport_common.c:819 vsock_assign_transport+0xc3/0x2e0 net/vmw_vsock/af_vsock.c:454 vsock_stream_connect+0x263/0xad0 net/vmw_vsock/af_vsock.c:1288 __sys_connect_file+0x133/0x190 net/socket.c:1844 __sys_connect+0x104/0x140 net/socket.c:1861 __do_sys_connect net/socket.c:1872 [inline] __se_sys_connect net/socket.c:1869 [inline] __x64_sys_connect+0x6e/0xb0 net/socket.c:1869 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: Bad RIP value. RSP: 002b:00007f2782d7fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f2782d806d4 RCX: 000000000045c449 RDX: 0000000000000010 RSI: 0000000020000440 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000096 R14: 00000000004c2eae R15: 000000000076bf2c INFO: task syz-executor.2:8022 blocked for more than 145 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D29696 8022 7963 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 lock_sock include/net/sock.h:1526 [inline] vsock_stream_setsockopt+0xe8/0x440 net/vmw_vsock/af_vsock.c:1547 __sys_setsockopt+0x213/0x440 net/socket.c:2117 __do_sys_setsockopt net/socket.c:2133 [inline] __se_sys_setsockopt net/socket.c:2130 [inline] __x64_sys_setsockopt+0xb9/0x150 net/socket.c:2130 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: Bad RIP value. RSP: 002b:00007f2782d5ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f2782d5f6d4 RCX: 000000000045c449 RDX: 0000000000000002 RSI: 0000000000000028 RDI: 0000000000000003 RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a31 R14: 00000000004d5928 R15: 000000000076bfcc INFO: task syz-executor.2:8036 blocked for more than 145 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D29696 8036 7963 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 virtio_transport_release+0xa7/0xb20 net/vmw_vsock/virtio_transport_common.c:819 vsock_assign_transport+0xc3/0x2e0 net/vmw_vsock/af_vsock.c:454 vsock_stream_connect+0x263/0xad0 net/vmw_vsock/af_vsock.c:1288 __sys_connect_file+0x133/0x190 net/socket.c:1844 __sys_connect+0x104/0x140 net/socket.c:1861 __do_sys_connect net/socket.c:1872 [inline] __se_sys_connect net/socket.c:1869 [inline] __x64_sys_connect+0x6e/0xb0 net/socket.c:1869 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: Bad RIP value. RSP: 002b:00007f2782d1cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f2782d1d6d4 RCX: 000000000045c449 RDX: 0000000000000010 RSI: 0000000020000440 RDI: 0000000000000003 RBP: 000000000076c100 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000096 R14: 00000000004c2eae R15: 000000000076c10c INFO: task syz-executor.4:8025 blocked for more than 145 seconds. Not tainted 5.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D29576 8025 7968 0x00000004 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x8a9/0x1970 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 __lock_sock+0x129/0x200 net/core/sock.c:2413 lock_sock_nested+0xda/0x100 net/core/sock.c:2938 virtio_transport_release+0xa7/0xb20 net/vmw_vsock/virtio_transport_common.c:819 vsock_assign_transport+0xc3/0x2e0 net/vmw_vsock/af_vsock.c:454 vsock_stream_connect+0x263/0xad0 net/vmw_vsock/af_vsock.c:1288 __sys_connect_file+0x133/0x190 net/socket.c:1844 __sys_connect+0x104/0x140 net/socket.c:1861 __do_sys_connect net/socket.c:1872 [inline] __se_sys_connect net/socket.c:1869 [inline] __x64_sys_connect+0x6e/0xb0 net/socket.c:1869 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c449 Code: Bad RIP value. RSP: 002b:00007fdafbe2fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007fdafbe306d4 RCX: 000000000045c449 RDX: 0000000000000010 RSI: 0000000020000440 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000096 R14: 00000000004c2eae R15: 000000000076bf2c Showing all locks held in the system: 1 lock held by khungtaskd/1110: #0: ffffffff88d99140 (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x275 kernel/locking/lockdep.c:5334 2 locks held by rsyslogd/7746: #0: ffff888098260660 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa3/0xc0 fs/file.c:801 #1: ffffffff88d8e978 (logbuf_lock){-.-.}, at: is_bpf_text_address+0x0/0xe0 kernel/bpf/core.c:694 2 locks held by getty/7836: #0: ffff88808fd21090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc900017bb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7837: #0: ffff88808c0cd090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc9000183b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7838: #0: ffff8880a9468090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc9000184b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7839: #0: ffff88809c18d090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc900017fb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7840: #0: ffff8880995cc090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc9000182b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7841: #0: ffff8880968e9090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc9000181b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7842: #0: ffff8880a0b47090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc9000178b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.1/8008: #0: ffff8880a777b910 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff8880a777b910 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.1/8016: #0: ffff8880a70ac8d0 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff8880a70ac8d0 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.3/8013: #0: ffff8880a777b190 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff8880a777b190 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.3/8018: #0: ffff888090acb8d0 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff888090acb8d0 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.2/8021: #0: ffff888099d31950 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff888099d31950 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.2/8036: #0: ffff88807cb398d0 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff88807cb398d0 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.4/8025: #0: ffff888099d311d0 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff888099d311d0 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.4/8038: #0: ffff8880928c48d0 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff8880928c48d0 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.0/8029: #0: ffff888099656890 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff888099656890 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.0/8040: #0: ffff8880a7a2b8d0 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff8880a7a2b8d0 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.5/8032: #0: ffff88807caf98d0 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff88807caf98d0 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 1 lock held by syz-executor.5/8042: #0: ffff8880a6e838d0 (sk_lock-AF_VSOCK){+.+.}, at: lock_sock include/net/sock.h:1526 [inline] #0: ffff8880a6e838d0 (sk_lock-AF_VSOCK){+.+.}, at: vsock_stream_connect+0xee/0xad0 net/vmw_vsock/af_vsock.c:1258 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1110 Comm: khungtaskd Not tainted 5.5.0-rc1-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+0x12d/0x187 lib/dump_stack.c:118 nmi_cpu_backtrace.cold.7+0x4b/0x84 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x18b/0x1b7 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:205 [inline] watchdog+0x611/0xc50 kernel/hung_task.c:289 kthread+0x331/0x3f0 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0x12/0x20 arch/x86/include/asm/irqflags.h:60