random: crng init done
==================================================================
BUG: KMSAN: uninit-value in __list_del_entry_valid+0x39e/0x440 lib/list_debug.c:54
CPU: 0 PID: 29038 Comm: blkid Not tainted 4.17.0+ #9
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+0x188/0x2a0 mm/kmsan/kmsan.c:1125
 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
 __list_del_entry_valid+0x39e/0x440 lib/list_debug.c:54
 __list_del_entry include/linux/list.h:117 [inline]
 list_del include/linux/list.h:125 [inline]
 __rmqueue_pcplist mm/page_alloc.c:2951 [inline]
 rmqueue_pcplist mm/page_alloc.c:2971 [inline]
 rmqueue mm/page_alloc.c:2993 [inline]
 get_page_from_freelist+0x9d8b/0xb740 mm/page_alloc.c:3352
 __alloc_pages_nodemask+0x792/0x5cc0 mm/page_alloc.c:4371
 alloc_pages_vma+0xcc6/0x17f0 mm/mempolicy.c:2057
 alloc_zeroed_user_highpage_movable include/linux/highmem.h:187 [inline]
 do_anonymous_page mm/memory.c:3157 [inline]
 handle_pte_fault mm/memory.c:3963 [inline]
 __handle_mm_fault mm/memory.c:4089 [inline]
 handle_mm_fault+0x41ec/0x7ed0 mm/memory.c:4126
 __do_page_fault+0xec6/0x1a10 arch/x86/mm/fault.c:1400
 do_page_fault+0xb7/0x250 arch/x86/mm/fault.c:1477
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1163
RIP: 0033:0x7f02cca5f1e5
RSP: 002b:00007ffedb585600 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000021001 RCX: 00000000008ab000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: 00007f02ccd6ee40 R08: 00007f02ccd6ee40 R09: 00007f02cc9e9c60
R10: 0000000000091a20 R11: 0000000000000206 R12: 00007f02ccd6ee98
R13: 0000000000000000 R14: 00007f02ccd6dda0 R15: 00000000008cc000

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:282 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:297 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:689
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464
 __list_add include/linux/list.h:63 [inline]
 list_add include/linux/list.h:79 [inline]
 free_unref_page_commit+0x420/0x4d0 mm/page_alloc.c:2774
 free_unref_page_list+0x75e/0x8b0 mm/page_alloc.c:2821
 release_pages+0x1637/0x1650 mm/swap.c:791
 free_pages_and_swap_cache+0x55b/0x580 mm/swap_state.c:322
 tlb_flush_mmu_free mm/memory.c:260 [inline]
 zap_pte_range mm/memory.c:1405 [inline]
 zap_pmd_range mm/memory.c:1442 [inline]
 zap_pud_range mm/memory.c:1471 [inline]
 zap_p4d_range mm/memory.c:1492 [inline]
 unmap_page_range+0x3228/0x3be0 mm/memory.c:1513
 unmap_single_vma+0x445/0x5e0 mm/memory.c:1558
 unmap_vmas+0x1f4/0x360 mm/memory.c:1588
 exit_mmap+0x4d7/0x980 mm/mmap.c:3105
 __mmput+0x158/0x600 kernel/fork.c:962
 mmput+0xab/0xf0 kernel/fork.c:983
 exit_mm+0x6ed/0x7a0 kernel/exit.c:545
 do_exit+0xc12/0x3930 kernel/exit.c:854
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 get_signal+0x1405/0x1ec0 kernel/signal.c:2482
 do_signal+0xb8/0x1d20 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+0xe9/0x710 arch/x86/entry/common.c:265
 do_syscall_64+0x1ad/0x230 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Local variable description: ----pages_to_free@release_pages
Variable was created at:
 release_pages+0x85/0x1650 mm/swap.c:715
 free_pages_and_swap_cache+0x55b/0x580 mm/swap_state.c:322
==================================================================