8021q: adding VLAN 0 to HW filter on device team0
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BUG: KMSAN: uninit-value in __list_add_valid+0x1b8/0x450 lib/list_debug.c:23
CPU: 0 PID: 4496 Comm: syz-executor7 Not tainted 4.17.0-rc5+ #98
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+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x149/0x260 mm/kmsan/kmsan.c:1084
 __msan_warning_32+0x6e/0xc0 mm/kmsan/kmsan_instr.c:683
 __list_add_valid+0x1b8/0x450 lib/list_debug.c:23
 __list_add include/linux/list.h:60 [inline]
 list_add include/linux/list.h:79 [inline]
 account_entity_enqueue kernel/sched/fair.c:2652 [inline]
 enqueue_entity kernel/sched/fair.c:4176 [inline]
 enqueue_task_fair+0xe02/0x4470 kernel/sched/fair.c:5359
 enqueue_task kernel/sched/core.c:751 [inline]
 activate_task kernel/sched/core.c:770 [inline]
 ttwu_activate kernel/sched/core.c:1641 [inline]
 ttwu_do_activate kernel/sched/core.c:1700 [inline]
 ttwu_queue kernel/sched/core.c:1845 [inline]
 try_to_wake_up+0x13c0/0x2090 kernel/sched/core.c:2058
 default_wake_function+0x92/0xb0 kernel/sched/core.c:3745
 __wake_up_common kernel/sched/wait.c:90 [inline]
 __wake_up_locked+0x216/0x370 kernel/sched/wait.c:152
 ep_poll_callback+0xd7c/0x11c0 fs/eventpoll.c:1197
 __wake_up_common+0x44f/0xa60 kernel/sched/wait.c:90
 __wake_up_common_lock+0x196/0x370 kernel/sched/wait.c:119
 __wake_up_sync_key+0xcf/0x120 kernel/sched/wait.c:197
 pipe_write+0x14bb/0x1c70 fs/pipe.c:477
 call_write_iter include/linux/fs.h:1784 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x7fb/0x9f0 fs/read_write.c:487
 vfs_write+0x463/0x8d0 fs/read_write.c:549
 ksys_write fs/read_write.c:598 [inline]
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x1bf/0x3e0 fs/read_write.c:607
 do_syscall_64+0x154/0x220 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x40fa00
RSP: 002b:0000000000a3ea88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000010f RCX: 000000000040fa00
RDX: 000000000000000c RSI: 0000000000a3ea90 RDI: 00000000000000fb
RBP: 000000000001c37b R08: 0000000000000001 R09: 000000000288a940
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000030c
R13: 0000000000000002 R14: 000000000000030c R15: 000000000001c2fb

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:294 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:685
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:528
 __list_add include/linux/list.h:65 [inline]
 list_add include/linux/list.h:79 [inline]
 list_move include/linux/list.h:171 [inline]
 pick_next_task_fair+0x2464/0x2520 kernel/sched/fair.c:6968
 pick_next_task+0x1b1/0x410 kernel/sched/core.c:3351
 __schedule+0x20b/0x730 kernel/sched/core.c:3481
 do_task_dead+0xcc/0xf0 kernel/sched/core.c:3524
 do_exit+0x340e/0x38d0 kernel/exit.c:924
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 get_signal+0x1320/0x1f20 kernel/signal.c:2482
 do_signal+0xb8/0x1c80 arch/x86/kernel/signal.c:810
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x271/0x3a0 arch/x86/entry/common.c:196
 syscall_return_slowpath+0xe9/0x700 arch/x86/entry/common.c:265
 do_syscall_64+0x1a6/0x220 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
Local variable description: ----tlb.i@ldt_arch_exit_mmap
Variable was created at:
 ldt_arch_exit_mmap+0x46/0x160 arch/x86/kernel/ldt.c:302
 arch_exit_mmap arch/x86/include/asm/mmu_context.h:245 [inline]
 exit_mmap+0x379/0x970 mm/mmap.c:3094
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