IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
==================================================================
BUG: KMSAN: uninit-value in __rmqueue_pcplist mm/page_alloc.c:2843 [inline]
BUG: KMSAN: uninit-value in rmqueue_pcplist mm/page_alloc.c:2872 [inline]
BUG: KMSAN: uninit-value in rmqueue mm/page_alloc.c:2894 [inline]
BUG: KMSAN: uninit-value in get_page_from_freelist+0x5e50/0xb600 mm/page_alloc.c:3243
CPU: 0 PID: 7004 Comm: syz-executor3 Not tainted 4.16.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683
 __rmqueue_pcplist mm/page_alloc.c:2843 [inline]
 rmqueue_pcplist mm/page_alloc.c:2872 [inline]
 rmqueue mm/page_alloc.c:2894 [inline]
 get_page_from_freelist+0x5e50/0xb600 mm/page_alloc.c:3243
 __alloc_pages_nodemask+0x789/0x5dc0 mm/page_alloc.c:4252
 alloc_pages_current+0x6b5/0x970 mm/mempolicy.c:2055
 alloc_pages include/linux/gfp.h:494 [inline]
 pte_alloc_one+0x56/0x110 arch/x86/mm/pgtable.c:29
 __do_huge_pmd_anonymous_page mm/huge_memory.c:565 [inline]
 do_huge_pmd_anonymous_page+0x12ae/0x2520 mm/huge_memory.c:729
 create_huge_pmd mm/memory.c:3870 [inline]
 __handle_mm_fault mm/memory.c:4074 [inline]
 handle_mm_fault+0x428f/0x7e50 mm/memory.c:4140
 __do_page_fault+0xec4/0x1a10 arch/x86/mm/fault.c:1423
 do_page_fault+0xd3/0x260 arch/x86/mm/fault.c:1500
 page_fault+0x25/0x50 arch/x86/entry/entry_64.S:1151
RIP: 0010:copy_user_generic_unrolled+0xa0/0xc0 arch/x86/lib/copy_user_64.S:75
RSP: 0018:ffff8801afb1fae0 EFLAGS: 00010202
RAX: ffffffff83eaed02 RBX: 0000000020999000 RCX: 0000000000000002
RDX: 0000000000000002 RSI: ffff8801993d6e00 RDI: 0000000020999000
RBP: ffff8801afb1fb48 R08: 00000000010000c0 R09: 0000000000000001
R10: 0000000000000000 R11: ffff8801afb10000 R12: 0000000000000000
R13: ffff8801afb1fae8 R14: 0000000000000000 R15: ffff8801a5d3c418
 copy_to_user include/linux/uaccess.h:183 [inline]
 ccid_getsockopt_builtin_ccids+0x25b/0x400 net/dccp/ccid.c:74
 do_dccp_getsockopt+0x49c/0x13e0 net/dccp/proto.c:650
 dccp_getsockopt+0xfd/0x200 net/dccp/proto.c:700
 sock_common_getsockopt+0x13a/0x170 net/core/sock.c:2934
 SYSC_getsockopt+0x49b/0x570 net/socket.c:1880
 SyS_getsockopt+0x76/0xa0 net/socket.c:1862
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x455979
RSP: 002b:00007f086b4e3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007f086b4e46d4 RCX: 0000000000455979
RDX: 000000000000000c RSI: 002000000000010d RDI: 0000000000000003
RBP: 000000000072bea0 R08: 0000000020000000 R09: 0000000000000000
R10: 0000000020999000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000000cd R14: 00000000006f43d8 R15: 0000000000000000

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:293 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:684
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:528
 __write_once_size include/linux/compiler.h:224 [inline]
 __list_add include/linux/list.h:66 [inline]
 list_add include/linux/list.h:79 [inline]
 free_unref_page_commit+0x4fb/0x530 mm/page_alloc.c:2674
 free_unref_page mm/page_alloc.c:2695 [inline]
 __free_pages mm/page_alloc.c:4321 [inline]
 free_pages+0x290/0x320 mm/page_alloc.c:4333
 arch_tlb_finish_mmu mm/memory.c:290 [inline]
 tlb_finish_mmu+0x3f7/0x5c0 mm/memory.c:433
 exit_mmap+0x498/0x950 mm/mmap.c:3040
 __mmput+0x16c/0x610 kernel/fork.c:961
 mmput+0xab/0xf0 kernel/fork.c:982
 exit_mm+0x6ed/0x7a0 kernel/exit.c:545
 do_exit+0xc01/0x38d0 kernel/exit.c:854
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 SYSC_exit_group+0x21/0x30 kernel/exit.c:981
 SyS_exit_group+0x25/0x30 kernel/exit.c:979
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Local variable description: ----tlb@exit_mmap
Variable was created at:
 exit_mmap+0x48/0x950 mm/mmap.c:2992
 __mmput+0x16c/0x610 kernel/fork.c:961
==================================================================