8021q: adding VLAN 0 to HW filter on device team0
8021q: adding VLAN 0 to HW filter on device team0
8021q: adding VLAN 0 to HW filter on device team0
8021q: adding VLAN 0 to HW filter on device team0
=====================================================
BUG: KMSAN: uninit-value in memcmp lib/string.c:947 [inline]
BUG: KMSAN: uninit-value in bcmp+0x127/0x180 lib/string.c:968
CPU: 0 PID: 7632 Comm: syz-executor1 Not tainted 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x1df/0x240 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
 memcmp lib/string.c:947 [inline]
 bcmp+0x127/0x180 lib/string.c:968
 __hw_addr_del_ex net/core/dev_addr_lists.c:119 [inline]
 __dev_mc_del+0x181/0x700 net/core/dev_addr_lists.c:815
 dev_mc_del+0x6d/0x80 net/core/dev_addr_lists.c:833
 igmp6_group_dropped+0x2d7/0x1430 net/ipv6/mcast.c:707
 __ipv6_dev_mc_dec+0x642/0xb20 net/ipv6/mcast.c:957
 addrconf_leave_solict net/ipv6/addrconf.c:2180 [inline]
 __ipv6_ifa_notify+0x116d/0x1c00 net/ipv6/addrconf.c:6071
 addrconf_ifdown+0x1813/0x27a0 net/ipv6/addrconf.c:3818
 addrconf_notify+0x1d6/0x5b10 net/ipv6/addrconf.c:3629
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x130/0x250 kernel/notifier.c:410
 call_netdevice_notifiers_info net/core/dev.c:2040 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers net/core/dev.c:2066 [inline]
 dev_close_many+0x670/0xb10 net/core/dev.c:1641
 rollback_registered_many+0x896/0x2b00 net/core/dev.c:9473
 rollback_registered net/core/dev.c:9541 [inline]
 unregister_netdevice_queue+0x578/0xac0 net/core/dev.c:10717
 unregister_netdevice include/linux/netdevice.h:2868 [inline]
 __tun_detach+0x23b2/0x2d50 drivers/net/tun.c:662
 tun_detach drivers/net/tun.c:679 [inline]
 tun_chr_close+0xda/0x1c0 drivers/net/tun.c:3354
 __fput+0x5c6/0xcd0 fs/file_table.c:280
 ____fput+0x37/0x40 fs/file_table.c:313
 task_work_run+0x14d/0x260 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
 exit_to_user_mode_prepare+0x445/0x4e0 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x35/0x60 kernel/entry/common.c:294
 do_syscall_64+0xc8/0x120 arch/x86/entry/common.c:58
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x411e1b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffe1fb8c8b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411e1b
RDX: 0000000000000000 RSI: 0000000000520358 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffe1fb8c7d0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffe1fb8c9f0 R14: 0000000000000001 R15: 0000000000000001

Local variable ----buf@igmp6_group_dropped created at:
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
=====================================================
=====================================================
BUG: KMSAN: uninit-value in memcmp lib/string.c:947 [inline]
BUG: KMSAN: uninit-value in bcmp+0x127/0x180 lib/string.c:968
CPU: 0 PID: 7632 Comm: syz-executor1 Tainted: G    B             5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x1df/0x240 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
 memcmp lib/string.c:947 [inline]
 bcmp+0x127/0x180 lib/string.c:968
 __hw_addr_del_ex net/core/dev_addr_lists.c:119 [inline]
 __dev_mc_del+0x181/0x700 net/core/dev_addr_lists.c:815
 dev_mc_del+0x6d/0x80 net/core/dev_addr_lists.c:833
 igmp6_group_dropped+0x2d7/0x1430 net/ipv6/mcast.c:707
 __ipv6_dev_mc_dec+0x642/0xb20 net/ipv6/mcast.c:957
 addrconf_leave_solict net/ipv6/addrconf.c:2180 [inline]
 __ipv6_ifa_notify+0x116d/0x1c00 net/ipv6/addrconf.c:6071
 addrconf_ifdown+0x1813/0x27a0 net/ipv6/addrconf.c:3818
 addrconf_notify+0x1d6/0x5b10 net/ipv6/addrconf.c:3629
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x130/0x250 kernel/notifier.c:410
 call_netdevice_notifiers_info net/core/dev.c:2040 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers net/core/dev.c:2066 [inline]
 dev_close_many+0x670/0xb10 net/core/dev.c:1641
 rollback_registered_many+0x896/0x2b00 net/core/dev.c:9473
 rollback_registered net/core/dev.c:9541 [inline]
 unregister_netdevice_queue+0x578/0xac0 net/core/dev.c:10717
 unregister_netdevice include/linux/netdevice.h:2868 [inline]
 __tun_detach+0x23b2/0x2d50 drivers/net/tun.c:662
 tun_detach drivers/net/tun.c:679 [inline]
 tun_chr_close+0xda/0x1c0 drivers/net/tun.c:3354
 __fput+0x5c6/0xcd0 fs/file_table.c:280
 ____fput+0x37/0x40 fs/file_table.c:313
 task_work_run+0x14d/0x260 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
 exit_to_user_mode_prepare+0x445/0x4e0 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x35/0x60 kernel/entry/common.c:294
 do_syscall_64+0xc8/0x120 arch/x86/entry/common.c:58
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x411e1b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffe1fb8c8b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411e1b
RDX: 0000000000000000 RSI: 0000000000520358 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffe1fb8c7d0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffe1fb8c9f0 R14: 0000000000000001 R15: 0000000000000001

Local variable ----buf@igmp6_group_dropped created at:
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
=====================================================
=====================================================
BUG: KMSAN: uninit-value in memcmp lib/string.c:947 [inline]
BUG: KMSAN: uninit-value in bcmp+0x127/0x180 lib/string.c:968
CPU: 1 PID: 7654 Comm: syz-executor3 Tainted: G    B             5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x1df/0x240 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
 memcmp lib/string.c:947 [inline]
 bcmp+0x127/0x180 lib/string.c:968
 __hw_addr_del_ex net/core/dev_addr_lists.c:119 [inline]
 __dev_mc_del+0x181/0x700 net/core/dev_addr_lists.c:815
 dev_mc_del+0x6d/0x80 net/core/dev_addr_lists.c:833
 igmp6_group_dropped+0x2d7/0x1430 net/ipv6/mcast.c:707
 __ipv6_dev_mc_dec+0x642/0xb20 net/ipv6/mcast.c:957
 addrconf_leave_solict net/ipv6/addrconf.c:2180 [inline]
 __ipv6_ifa_notify+0x116d/0x1c00 net/ipv6/addrconf.c:6071
 addrconf_ifdown+0x1813/0x27a0 net/ipv6/addrconf.c:3818
 addrconf_notify+0x1d6/0x5b10 net/ipv6/addrconf.c:3629
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x130/0x250 kernel/notifier.c:410
 call_netdevice_notifiers_info net/core/dev.c:2040 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers net/core/dev.c:2066 [inline]
 dev_close_many+0x670/0xb10 net/core/dev.c:1641
 rollback_registered_many+0x896/0x2b00 net/core/dev.c:9473
 rollback_registered net/core/dev.c:9541 [inline]
 unregister_netdevice_queue+0x578/0xac0 net/core/dev.c:10717
 unregister_netdevice include/linux/netdevice.h:2868 [inline]
 __tun_detach+0x23b2/0x2d50 drivers/net/tun.c:662
 tun_detach drivers/net/tun.c:679 [inline]
 tun_chr_close+0xda/0x1c0 drivers/net/tun.c:3354
 __fput+0x5c6/0xcd0 fs/file_table.c:280
 ____fput+0x37/0x40 fs/file_table.c:313
 task_work_run+0x14d/0x260 kernel/task_work.c:140
 get_signal+0x2f7a/0x3150 kernel/signal.c:2554
 arch_do_signal_or_restart+0xa5/0xe40 arch/x86/kernel/signal.c:811
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x2c2/0x4e0 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x35/0x60 kernel/entry/common.c:294
 do_syscall_64+0xc8/0x120 arch/x86/entry/common.c:58
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45f5a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0e075b41a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffef RBX: 000000000051bfa0 RCX: 000000000045f5a9
RDX: 0000000020000000 RSI: 00000000400454ca RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004ebc10 R14: 00000000004ade1d R15: 00007f0e075b46bc

Local variable ----buf@igmp6_group_dropped created at:
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
=====================================================
=====================================================
BUG: KMSAN: uninit-value in memcmp lib/string.c:947 [inline]
BUG: KMSAN: uninit-value in bcmp+0x127/0x180 lib/string.c:968
CPU: 1 PID: 7654 Comm: syz-executor3 Tainted: G    B             5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x1df/0x240 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
 memcmp lib/string.c:947 [inline]
 bcmp+0x127/0x180 lib/string.c:968
 __hw_addr_del_ex net/core/dev_addr_lists.c:119 [inline]
 __dev_mc_del+0x181/0x700 net/core/dev_addr_lists.c:815
 dev_mc_del+0x6d/0x80 net/core/dev_addr_lists.c:833
 igmp6_group_dropped+0x2d7/0x1430 net/ipv6/mcast.c:707
 __ipv6_dev_mc_dec+0x642/0xb20 net/ipv6/mcast.c:957
 addrconf_leave_solict net/ipv6/addrconf.c:2180 [inline]
 __ipv6_ifa_notify+0x116d/0x1c00 net/ipv6/addrconf.c:6071
 addrconf_ifdown+0x1813/0x27a0 net/ipv6/addrconf.c:3818
 addrconf_notify+0x1d6/0x5b10 net/ipv6/addrconf.c:3629
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x130/0x250 kernel/notifier.c:410
 call_netdevice_notifiers_info net/core/dev.c:2040 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers net/core/dev.c:2066 [inline]
 dev_close_many+0x670/0xb10 net/core/dev.c:1641
 rollback_registered_many+0x896/0x2b00 net/core/dev.c:9473
 rollback_registered net/core/dev.c:9541 [inline]
 unregister_netdevice_queue+0x578/0xac0 net/core/dev.c:10717
 unregister_netdevice include/linux/netdevice.h:2868 [inline]
 __tun_detach+0x23b2/0x2d50 drivers/net/tun.c:662
 tun_detach drivers/net/tun.c:679 [inline]
 tun_chr_close+0xda/0x1c0 drivers/net/tun.c:3354
 __fput+0x5c6/0xcd0 fs/file_table.c:280
 ____fput+0x37/0x40 fs/file_table.c:313
 task_work_run+0x14d/0x260 kernel/task_work.c:140
 get_signal+0x2f7a/0x3150 kernel/signal.c:2554
 arch_do_signal_or_restart+0xa5/0xe40 arch/x86/kernel/signal.c:811
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x2c2/0x4e0 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x35/0x60 kernel/entry/common.c:294
 do_syscall_64+0xc8/0x120 arch/x86/entry/common.c:58
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45f5a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0e075b41a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffef RBX: 000000000051bfa0 RCX: 000000000045f5a9
RDX: 0000000020000000 RSI: 00000000400454ca RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004ebc10 R14: 00000000004ade1d R15: 00007f0e075b46bc

Local variable ----buf@igmp6_group_dropped created at:
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
=====================================================
=====================================================
BUG: KMSAN: uninit-value in memcmp lib/string.c:947 [inline]
BUG: KMSAN: uninit-value in bcmp+0x127/0x180 lib/string.c:968
CPU: 0 PID: 7889 Comm: syz-executor5 Tainted: G    B             5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x1df/0x240 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
 memcmp lib/string.c:947 [inline]
 bcmp+0x127/0x180 lib/string.c:968
 __hw_addr_del_ex net/core/dev_addr_lists.c:119 [inline]
 __dev_mc_del+0x181/0x700 net/core/dev_addr_lists.c:815
 dev_mc_del+0x6d/0x80 net/core/dev_addr_lists.c:833
 igmp6_group_dropped+0x2d7/0x1430 net/ipv6/mcast.c:707
 __ipv6_dev_mc_dec+0x642/0xb20 net/ipv6/mcast.c:957
 addrconf_leave_solict net/ipv6/addrconf.c:2180 [inline]
 __ipv6_ifa_notify+0x116d/0x1c00 net/ipv6/addrconf.c:6071
 addrconf_ifdown+0x1813/0x27a0 net/ipv6/addrconf.c:3818
 addrconf_notify+0x1d6/0x5b10 net/ipv6/addrconf.c:3629
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x130/0x250 kernel/notifier.c:410
 call_netdevice_notifiers_info net/core/dev.c:2040 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers net/core/dev.c:2066 [inline]
 dev_close_many+0x670/0xb10 net/core/dev.c:1641
 rollback_registered_many+0x896/0x2b00 net/core/dev.c:9473
 rollback_registered net/core/dev.c:9541 [inline]
 unregister_netdevice_queue+0x578/0xac0 net/core/dev.c:10717
 unregister_netdevice include/linux/netdevice.h:2868 [inline]
 __tun_detach+0x23b2/0x2d50 drivers/net/tun.c:662
 tun_detach drivers/net/tun.c:679 [inline]
 tun_chr_close+0xda/0x1c0 drivers/net/tun.c:3354
 __fput+0x5c6/0xcd0 fs/file_table.c:280
 ____fput+0x37/0x40 fs/file_table.c:313
 task_work_run+0x14d/0x260 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
 exit_to_user_mode_prepare+0x445/0x4e0 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x35/0x60 kernel/entry/common.c:294
 do_syscall_64+0xc8/0x120 arch/x86/entry/common.c:58
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x411e1b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffe4d3041e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411e1b
RDX: 0000000000518060 RSI: 0000000000520358 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffe4d304100 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffe4d304320 R14: 0000000000000001 R15: 0000000000000001

Local variable ----buf@igmp6_group_dropped created at:
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
=====================================================
=====================================================
BUG: KMSAN: uninit-value in memcmp lib/string.c:947 [inline]
BUG: KMSAN: uninit-value in bcmp+0x127/0x180 lib/string.c:968
CPU: 0 PID: 7889 Comm: syz-executor5 Tainted: G    B             5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x1df/0x240 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
 memcmp lib/string.c:947 [inline]
 bcmp+0x127/0x180 lib/string.c:968
 __hw_addr_del_ex net/core/dev_addr_lists.c:119 [inline]
 __dev_mc_del+0x181/0x700 net/core/dev_addr_lists.c:815
 dev_mc_del+0x6d/0x80 net/core/dev_addr_lists.c:833
 igmp6_group_dropped+0x2d7/0x1430 net/ipv6/mcast.c:707
 __ipv6_dev_mc_dec+0x642/0xb20 net/ipv6/mcast.c:957
 addrconf_leave_solict net/ipv6/addrconf.c:2180 [inline]
 __ipv6_ifa_notify+0x116d/0x1c00 net/ipv6/addrconf.c:6071
 addrconf_ifdown+0x1813/0x27a0 net/ipv6/addrconf.c:3818
 addrconf_notify+0x1d6/0x5b10 net/ipv6/addrconf.c:3629
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x130/0x250 kernel/notifier.c:410
 call_netdevice_notifiers_info net/core/dev.c:2040 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers net/core/dev.c:2066 [inline]
 dev_close_many+0x670/0xb10 net/core/dev.c:1641
 rollback_registered_many+0x896/0x2b00 net/core/dev.c:9473
 rollback_registered net/core/dev.c:9541 [inline]
 unregister_netdevice_queue+0x578/0xac0 net/core/dev.c:10717
 unregister_netdevice include/linux/netdevice.h:2868 [inline]
 __tun_detach+0x23b2/0x2d50 drivers/net/tun.c:662
 tun_detach drivers/net/tun.c:679 [inline]
 tun_chr_close+0xda/0x1c0 drivers/net/tun.c:3354
 __fput+0x5c6/0xcd0 fs/file_table.c:280
 ____fput+0x37/0x40 fs/file_table.c:313
 task_work_run+0x14d/0x260 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
 exit_to_user_mode_prepare+0x445/0x4e0 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x35/0x60 kernel/entry/common.c:294
 do_syscall_64+0xc8/0x120 arch/x86/entry/common.c:58
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x411e1b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffe4d3041e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411e1b
RDX: 0000000000518060 RSI: 0000000000520358 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffe4d304100 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffe4d304320 R14: 0000000000000001 R15: 0000000000000001

Local variable ----buf@igmp6_group_dropped created at:
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
 igmp6_group_dropped+0xa1/0x1430 net/ipv6/mcast.c:697
=====================================================