overlayfs: upper fs does not support tmpfile.
overlayfs: upper fs does not support xattr, falling back to index=off and metacopy=off.
audit: type=1400 audit(1585000803.283:37): avc:  denied  { associate } for  pid=8207 comm="syz-executor020" name="cpu.stat" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1
------------[ cut here ]------------
audit: type=1400 audit(1585000803.283:38): avc:  denied  { associate } for  pid=8207 comm="syz-executor020" name="cpu.stat" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:hugetlbfs_t:s0 tclass=filesystem permissive=1
kernel BUG at mm/hugetlb.c:3371!
audit: type=1400 audit(1585000803.283:39): avc:  denied  { map } for  pid=8207 comm="syz-executor020" path="/root/file0/bus/cpu.stat" dev="overlay" ino=29380 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=file permissive=1
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8207 Comm: syz-executor020 Not tainted 4.19.112-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__unmap_hugepage_range+0x8e4/0xa90 mm/hugetlb.c:3371
Code: 4c 89 ea e8 4e 7b 93 ff 66 90 4c 89 ff e8 74 f5 84 05 e9 59 fc ff ff e8 9a 79 cd ff 0f 0b e8 93 79 cd ff 0f 0b e8 8c 79 cd ff <0f> 0b e8 85 79 cd ff 48 8b 94 24 b0 00 00 00 b9 01 00 00 00 48 89
RSP: 0018:ffff888097fafa38 EFLAGS: 00010293
RAX: ffff88809ee4c100 RBX: ffffffff8b6e3b30 RCX: ffffffff819a24bc
RDX: 0000000000000000 RSI: ffffffff819a2b34 RDI: 0000000000000007
RBP: ffff88808e04aac0 R08: ffff88809ee4c100 R09: fffffbfff16d1ce9
R10: fffffbfff16d1ce8 R11: 0000000000000003 R12: 0000000020000000
R13: 0000000000003000 R14: 0000000000000000 R15: 0000000000200000
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561094b281b0 CR3: 000000008fc72000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __unmap_hugepage_range_final+0x30/0x70 mm/hugetlb.c:3460
 unmap_single_vma+0x238/0x300 mm/memory.c:1552
 unmap_vmas+0xa9/0x180 mm/memory.c:1586
 exit_mmap+0x2b2/0x510 mm/mmap.c:3091
 __mmput kernel/fork.c:1015 [inline]
 mmput+0x14e/0x4a0 kernel/fork.c:1036
 exit_mm kernel/exit.c:546 [inline]
 do_exit+0xac8/0x2f30 kernel/exit.c:867
 do_group_exit+0x125/0x350 kernel/exit.c:983
 __do_sys_exit_group kernel/exit.c:994 [inline]
 __se_sys_exit_group kernel/exit.c:992 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:992
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x43efb8
Code: Bad RIP value.
RSP: 002b:00007ffd51e89eb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043efb8
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00000000004be7c8 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 0000000000010012 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace b78387d8290b1cd7 ]---
RIP: 0010:__unmap_hugepage_range+0x8e4/0xa90 mm/hugetlb.c:3371
Code: 4c 89 ea e8 4e 7b 93 ff 66 90 4c 89 ff e8 74 f5 84 05 e9 59 fc ff ff e8 9a 79 cd ff 0f 0b e8 93 79 cd ff 0f 0b e8 8c 79 cd ff <0f> 0b e8 85 79 cd ff 48 8b 94 24 b0 00 00 00 b9 01 00 00 00 48 89
RSP: 0018:ffff888097fafa38 EFLAGS: 00010293
RAX: ffff88809ee4c100 RBX: ffffffff8b6e3b30 RCX: ffffffff819a24bc
RDX: 0000000000000000 RSI: ffffffff819a2b34 RDI: 0000000000000007
RBP: ffff88808e04aac0 R08: ffff88809ee4c100 R09: fffffbfff16d1ce9
R10: fffffbfff16d1ce8 R11: 0000000000000003 R12: 0000000020000000
R13: 0000000000003000 R14: 0000000000000000 R15: 0000000000200000
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000043ef8e CR3: 000000008fc72000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400