bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 INFO: task syz-executor.2:682 blocked for more than 140 seconds. Not tainted 4.19.108-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D29504 682 8080 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 sock_do_ioctl+0x24e/0x2f0 net/socket.c:963 sock_ioctl+0x325/0x610 net/socket.c:1074 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcda/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c4a9 Code: Bad RIP value. RSP: 002b:00007fc8f7288c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc8f72896d4 RCX: 000000000045c4a9 RDX: 0000000000400200 RSI: 0000000000008912 RDI: 0000000000000006 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000040e R14: 00000000004c6745 R15: 000000000076bf2c INFO: task syz-executor.2:695 blocked for more than 140 seconds. Not tainted 4.19.108-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D26928 695 8080 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 sock_do_ioctl+0x24e/0x2f0 net/socket.c:963 sock_ioctl+0x325/0x610 net/socket.c:1074 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcda/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c4a9 Code: Bad RIP value. RSP: 002b:00007fc8f7267c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc8f72686d4 RCX: 000000000045c4a9 RDX: 0000000000400200 RSI: 0000000000008912 RDI: 0000000000000006 RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000040e R14: 00000000004c6745 R15: 000000000076bfcc INFO: task syz-executor.3:905 blocked for more than 140 seconds. Not tainted 4.19.108-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28416 905 8084 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 ip6mr_sk_done+0xe0/0x370 net/ipv6/ip6mr.c:1564 rawv6_close+0x58/0x80 net/ipv6/raw.c:1249 inet_release+0xd7/0x1e0 net/ipv4/af_inet.c:427 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:472 __sock_release+0xcd/0x2a0 net/socket.c:579 sock_close+0x15/0x20 net/socket.c:1140 __fput+0x2cd/0x890 fs/file_table.c:278 task_work_run+0x13f/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x25a/0x2b0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416041 Code: c1 be 01 00 00 00 31 c0 48 89 ef e8 e9 57 ff ff 85 c0 74 75 48 89 ef e8 2d 55 ff ff be 08 00 00 00 89 df e8 41 57 ff ff 83 f8 0f 84 d8 00 00 00 89 df e8 91 52 ff ff 8b 44 24 0c 48 8b 94 24 RSP: 002b:00007ffc7133a420 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000416041 RDX: 0000000000000000 RSI: 00000000000011f7 RDI: 0000000000000007 RBP: 0000000000000001 R08: 00000000bd0eb1f7 R09: 00000000bd0eb1fb R10: 00007ffc7133a500 R11: 0000000000000293 R12: 000000000076c920 R13: 000000000076c920 R14: 000000000018ff28 R15: 000000000076c06c INFO: task syz-executor.5:915 blocked for more than 140 seconds. Not tainted 4.19.108-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28928 915 8099 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 sock_do_ioctl+0x24e/0x2f0 net/socket.c:963 sock_ioctl+0x325/0x610 net/socket.c:1074 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcda/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c4a9 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcbedc7bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fcbedc7c6d4 RCX: 000000000045c4a9 RDX: 0000000000400200 RSI: 0000000000008912 RDI: 0000000000000004 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000040e R14: 00000000004c6745 R15: 000000000076bf2c Showing all locks held in the system: 4 locks held by kworker/u4:1/23: #0: 000000004f828975 ((wq_completion)"%s""netns"){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 000000004f828975 ((wq_completion)"%s""netns"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 000000004f828975 ((wq_completion)"%s""netns"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 000000004f828975 ((wq_completion)"%s""netns"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 000000004f828975 ((wq_completion)"%s""netns"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 000000004f828975 ((wq_completion)"%s""netns"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 000000004f828975 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x81a/0x1640 kernel/workqueue.c:2124 #1: 00000000ba1721e3 (net_cleanup_work){+.+.}, at: process_one_work+0x84e/0x1640 kernel/workqueue.c:2128 #2: 000000002bb60f4c (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x850 net/core/net_namespace.c:520 #3: 00000000b05f663d (rtnl_mutex){+.+.}, at: ip6gre_exit_batch_net+0x88/0x6f0 net/ipv6/ip6_gre.c:1620 1 lock held by khungtaskd/1075: #0: 000000006fd5e311 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4436 3 locks held by kworker/1:2/2914: #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: process_one_work+0x81a/0x1640 kernel/workqueue.c:2124 #1: 0000000073894fc6 ((linkwatch_work).work){+.+.}, at: process_one_work+0x84e/0x1640 kernel/workqueue.c:2128 #2: 00000000b05f663d (rtnl_mutex){+.+.}, at: linkwatch_event+0xb/0x60 net/core/link_watch.c:236 1 lock held by rsyslogd/7910: 2 locks held by getty/8032: #0: 000000007bc34bbd (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000a18bf4ed (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8033: #0: 00000000466a4932 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000d7e5e469 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8034: #0: 000000001537b42e (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000acc6981e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8035: #0: 000000002d85701d (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000b45d53a3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8036: #0: 0000000091653b5d (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000308b0586 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8037: #0: 00000000f8d4dfdd (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000d9254396 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8038: #0: 0000000093d103bd (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 0000000040ebf975 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by syz-executor.3/10062: #0: 00000000d6b47c16 (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:747 [inline] #0: 00000000d6b47c16 (&sb->s_type->i_mutex_key#11){+.+.}, at: __sock_release+0x86/0x2a0 net/socket.c:578 #1: 00000000b05f663d (rtnl_mutex){+.+.}, at: ip6mr_sk_done+0xe0/0x370 net/ipv6/ip6mr.c:1564 2 locks held by syz-executor.3/10085: #0: 00000000b15d313e (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:747 [inline] #0: 00000000b15d313e (&sb->s_type->i_mutex_key#11){+.+.}, at: __sock_release+0x86/0x2a0 net/socket.c:578 #1: 00000000b05f663d (rtnl_mutex){+.+.}, at: ip6mr_sk_done+0xe0/0x370 net/ipv6/ip6mr.c:1564 3 locks held by kworker/1:3/29419: #0: 000000003b17534c ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 000000003b17534c ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 000000003b17534c ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 000000003b17534c ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 000000003b17534c ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 000000003b17534c ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 000000003b17534c ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0x81a/0x1640 kernel/workqueue.c:2124 #1: 00000000c37be3f0 ((addr_chk_work).work){+.+.}, at: process_one_work+0x84e/0x1640 kernel/workqueue.c:2128 #2: 00000000b05f663d (rtnl_mutex){+.+.}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4466 3 locks held by kworker/1:4/9894: #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 000000006b08c46a ((wq_completion)"events"){+.+.}, at: process_one_work+0x81a/0x1640 kernel/workqueue.c:2124 #1: 0000000013168336 (deferred_process_work){+.+.}, at: process_one_work+0x84e/0x1640 kernel/workqueue.c:2128 #2: 00000000b05f663d (rtnl_mutex){+.+.}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:150 1 lock held by syz-executor.1/679: 1 lock held by syz-executor.2/682: #0: 00000000b05f663d (rtnl_mutex){+.+.}, at: sock_do_ioctl+0x24e/0x2f0 net/socket.c:963 1 lock held by syz-executor.2/695: #0: 00000000b05f663d (rtnl_mutex){+.+.}, at: sock_do_ioctl+0x24e/0x2f0 net/socket.c:963 2 locks held by syz-executor.3/905: #0: 00000000514c516c (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:747 [inline] #0: 00000000514c516c (&sb->s_type->i_mutex_key#11){+.+.}, at: __sock_release+0x86/0x2a0 net/socket.c:578 #1: 00000000b05f663d (rtnl_mutex){+.+.}, at: ip6mr_sk_done+0xe0/0x370 net/ipv6/ip6mr.c:1564 1 lock held by syz-executor.5/915: #0: 00000000b05f663d (rtnl_mutex){+.+.}, at: sock_do_ioctl+0x24e/0x2f0 net/socket.c:963 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1075 Comm: khungtaskd Not tainted 4.19.108-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+0x188/0x20d lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1eb 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+0x962/0xe40 kernel/hung_task.c:287 kthread+0x34a/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: 679 Comm: syz-executor.1 Not tainted 4.19.108-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:23 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:138 [inline] RIP: 0010:native_write_msr+0x6/0x20 arch/x86/include/asm/msr.h:164 Code: 67 87 0f 21 f8 c3 0f 21 c0 c3 0f 21 c8 c3 0f 21 d0 c3 0f 21 d8 c3 0f 21 f0 c3 0f 0b 0f 1f 84 00 00 00 00 00 89 f9 89 f0 0f 30 <0f> 1f 44 00 00 c3 48 c1 e2 20 89 f6 48 09 d6 31 d2 e9 24 f4 38 02 RSP: 0018:ffff8880ae707e98 EFLAGS: 00000046 RAX: 0000000000000058 RBX: 0000000000000838 RCX: 0000000000000838 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000000000838 RBP: ffff8880ae71f140 R08: ffff888037490100 R09: ffffffff8aaf3048 R10: ffffffff8aaf3050 R11: 0000000000000001 R12: 0000000000000058 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880ae725b80 FS: 00007fe8c78e5700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000025c2b1e0 CR3: 0000000031b99000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: paravirt_write_msr arch/x86/include/asm/paravirt.h:117 [inline] native_apic_msr_write arch/x86/include/asm/apic.h:209 [inline] native_apic_msr_write+0x54/0x80 arch/x86/include/asm/apic.h:203 apic_write arch/x86/include/asm/apic.h:397 [inline] lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:461 clockevents_program_event+0x23d/0x350 kernel/time/clockevents.c:344 tick_program_event+0xb9/0x150 kernel/time/tick-oneshot.c:48 hrtimer_interrupt+0x368/0x770 kernel/time/hrtimer.c:1534 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1092 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:should_resched arch/x86/include/asm/preempt.h:99 [inline] RIP: 0010:__local_bh_enable_ip+0x18d/0x270 kernel/softirq.c:196 Code: 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 dd 00 00 00 48 83 3d f8 1b 74 07 00 0f 84 8d 00 00 00 fb 66 0f 1f 44 00 00 <65> 8b 05 1c b3 c3 7e 85 c0 74 7d 5b 5d 41 5c c3 80 3d 32 7b 48 08 RSP: 0018:ffff88821419eb48 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1164ad3 RBX: 0000000000000200 RCX: 1ffff11006e92134 RDX: dffffc0000000000 RSI: ffff888037490980 RDI: ffff88803749097c RBP: ffffffff85ca9111 R08: ffff888037490100 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888037490100 R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000 local_bh_enable include/linux/bottom_half.h:32 [inline] get_next_corpse net/netfilter/nf_conntrack_core.c:1928 [inline] nf_ct_iterate_cleanup+0x217/0x4b0 net/netfilter/nf_conntrack_core.c:1951 nf_ct_iterate_cleanup_net net/netfilter/nf_conntrack_core.c:2036 [inline] nf_ct_iterate_cleanup_net+0x113/0x170 net/netfilter/nf_conntrack_core.c:2021 masq_device_event+0xd6/0x110 net/ipv4/netfilter/nf_nat_masquerade_ipv4.c:100 notifier_call_chain+0xc0/0x230 kernel/notifier.c:93 call_netdevice_notifiers net/core/dev.c:1766 [inline] __dev_notify_flags+0x1e9/0x2c0 net/core/dev.c:7703 dev_change_flags+0xf0/0x140 net/core/dev.c:7737 do_setlink+0x1601/0x3510 net/core/rtnetlink.c:2449 rtnl_group_changelink net/core/rtnetlink.c:2925 [inline] rtnl_newlink+0xc7e/0x1440 net/core/rtnetlink.c:3083 rtnetlink_rcv_msg+0x453/0xaf0 net/core/rtnetlink.c:4777 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c4a9 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe8c78e4c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe8c78e56d4 RCX: 000000000045c4a9 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009f9 R14: 00000000004cc766 R15: 000000000076bf2c