IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
ip (4507) used greatest stack depth: 54520 bytes left
==================================================================
BUG: KMSAN: uninit-value in __list_add_valid+0x1b8/0x450 lib/list_debug.c:23
CPU: 1 PID: 4544 Comm: sh Not tainted 4.17.0-rc5+ #103
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:686
 __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]
 list_move include/linux/list.h:171 [inline]
 pick_next_task_fair+0x2200/0x2520 kernel/sched/fair.c:6968
 pick_next_task+0x1b1/0x410 kernel/sched/core.c:3351
 __schedule+0x20b/0x730 kernel/sched/core.c:3481
 preempt_schedule_common kernel/sched/core.c:3631 [inline]
 _cond_resched+0x5e/0xd0 kernel/sched/core.c:4982
 slab_pre_alloc_hook mm/slab.h:421 [inline]
 slab_alloc_node mm/slub.c:2679 [inline]
 slab_alloc mm/slub.c:2761 [inline]
 kmem_cache_alloc+0xf5/0xb90 mm/slub.c:2766
 prepare_creds+0x65/0x5e0 kernel/cred.c:252
 copy_creds+0x133/0x910 kernel/cred.c:344
 copy_process+0x1276/0x9bc0 kernel/fork.c:1666
 _do_fork+0x311/0xf00 kernel/fork.c:2089
 __do_sys_clone kernel/fork.c:2196 [inline]
 __se_sys_clone kernel/fork.c:2190 [inline]
 __x64_sys_clone+0x15e/0x1b0 kernel/fork.c:2190
 do_syscall_64+0x152/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fc1bc91ef46
RSP: 002b:00007fff04bfe7e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fff04bfe7e0 RCX: 00007fc1bc91ef46
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fff04bfe820 R08: 0000000000000000 R09: 0000000000000008
R10: 00007fc1bce159d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

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:529
 __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+0xc8/0xf0 kernel/sched/core.c:3524
 do_exit+0x340e/0x38d0 kernel/exit.c:924
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 __do_sys_exit_group+0x21/0x30 kernel/exit.c:981
 __se_sys_exit_group+0x14/0x20 kernel/exit.c:979
 __x64_sys_exit_group+0x4c/0x50 kernel/exit.c:979
 do_syscall_64+0x152/0x230 arch/x86/entry/common.c:287
 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+0x3ef/0x970 mm/mmap.c:3094
==================================================================