IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan_hooks.c:338!
invalid opcode: 0000 [#1] SMP
CPU: 1 PID: 6664 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #90
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_free_page+0x27e/0x2a0 mm/kmsan/kmsan_hooks.c:399
Code: 28 e8 35 ff 4c 89 7d b8 ff 75 b8 9d 65 48 8b 04 25 28 00 00 00 48 3b 45 d0 75 13 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b 0f 0b e8 99 ce 4e ff 0f 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 1f 44
RSP: 0018:ffff88819f24f510 EFLAGS: 00010282
RAX: 0000000000000003 RBX: ffffea000771c000 RCX: 0000000000000120
RDX: ffff8881fbb68978 RSI: 0000000000000009 RDI: ffffea000771c000
RBP: ffff88819f24f560 R08: ffff888000000000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff820d6900 R12: 0000000000000200
R13: ffffea000771c071 R14: 0000000000000009 R15: 0000000000000009
FS:  000000c420027568(0000) GS:ffff88821fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000008565b7 CR3: 00000001a0546000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 free_pages_prepare mm/page_alloc.c:1000 [inline]
 __free_pages_ok+0x327/0x10e0 mm/page_alloc.c:1263
 free_compound_page+0xac/0xe0 mm/page_alloc.c:578
 free_transhuge_page+0x3bd/0x470 mm/huge_memory.c:2757
 __put_compound_page mm/swap.c:95 [inline]
 release_pages+0x884/0x18c0 mm/swap.c:759
 free_pages_and_swap_cache+0x553/0x590 mm/swap_state.c:295
 tlb_flush_mmu_free mm/mmu_gather.c:84 [inline]
 tlb_flush_mmu+0x6e9/0x8e0 mm/mmu_gather.c:93
 arch_tlb_finish_mmu+0x455/0x660 mm/mmu_gather.c:110
 tlb_finish_mmu+0x18f/0x310 mm/mmu_gather.c:269
 zap_page_range+0x9b1/0xa10 mm/memory.c:1366
 madvise_dontneed_single_vma mm/madvise.c:510 [inline]
 madvise_dontneed_free mm/madvise.c:563 [inline]
 madvise_vma mm/madvise.c:698 [inline]
 __do_sys_madvise mm/madvise.c:873 [inline]
 __se_sys_madvise+0x1bfe/0x4300 mm/madvise.c:801
 __x64_sys_madvise+0x4a/0x70 mm/madvise.c:801
 do_syscall_64+0xcf/0x110 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x45ddc7
Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <c3> cc cc cc cc cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14
RSP: 002b:000000c420031e08 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 0000000000334000 RCX: 000000000045ddc7
RDX: 0000000000000004 RSI: 0000000000334000 RDI: 000000c433efc000
RBP: 000000c420031e38 R08: 000000c4301be000 R09: 0000000000001000
R10: 00000000000f0000 R11: 0000000000000246 R12: 00000000000014f0
R13: 000000000000003f R14: 00007f35adde76c8 R15: 0000000000000008
Modules linked in:
---[ end trace fd78410d78ac21d7 ]---
RIP: 0010:kmsan_free_page+0x27e/0x2a0 mm/kmsan/kmsan_hooks.c:399
Code: 28 e8 35 ff 4c 89 7d b8 ff 75 b8 9d 65 48 8b 04 25 28 00 00 00 48 3b 45 d0 75 13 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b 0f 0b e8 99 ce 4e ff 0f 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 1f 44
RSP: 0018:ffff88819f24f510 EFLAGS: 00010282
RAX: 0000000000000003 RBX: ffffea000771c000 RCX: 0000000000000120
RDX: ffff8881fbb68978 RSI: 0000000000000009 RDI: ffffea000771c000
RBP: ffff88819f24f560 R08: ffff888000000000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff820d6900 R12: 0000000000000200
R13: ffffea000771c071 R14: 0000000000000009 R15: 0000000000000009
FS:  000000c420027568(0000) GS:ffff88821fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000008565b7 CR3: 00000001a0546000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400