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kernel BUG at mm/khugepaged.c:469!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 28098 Comm: syz-executor.5 Not tainted 5.9.0-rc1-next-20200817-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__khugepaged_enter+0x306/0x3d0 mm/khugepaged.c:469
Code: e4 49 81 fe 20 c0 d2 89 74 2a e8 15 62 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 02 62 bb ff 48 89 ef e8 7a c6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 eb 61 bb ff 31 c9 ba 01 00 00 00
RSP: 0018:ffffc90017117cc0 EFLAGS: 00010286
RAX: 000000000000036a RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff88809e51a540 RSI: ffffffff815d9107 RDI: fffff52002e22f37
RBP: ffff88804fdb7580 R08: 000000000000036a R09: ffff8880ae6318e7
R10: 0000000000000000 R11: 00000000000cde98 R12: ffff8880930604d0
R13: ffff88804fdb75dc R14: 0000000020000000 R15: ffffc90017117df8
FS:  0000000002bfa940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000743138 CR3: 000000004e0cb000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 khugepaged_enter include/linux/khugepaged.h:62 [inline]
 do_huge_pmd_anonymous_page+0xaa1/0x2230 mm/huge_memory.c:707
 create_huge_pmd mm/memory.c:4106 [inline]
 __handle_mm_fault mm/memory.c:4333 [inline]
 handle_mm_fault+0x3684/0x4580 mm/memory.c:4460
 do_user_addr_fault+0x598/0xbf0 arch/x86/mm/fault.c:1294
 handle_page_fault arch/x86/mm/fault.c:1351 [inline]
 exc_page_fault+0xa8/0x160 arch/x86/mm/fault.c:1404
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538
RIP: 0033:0x40066c
Code: 06 e9 49 01 00 00 48 8b 44 24 10 48 0b 44 24 28 75 1f 48 8b 14 24 48 8b 7c 24 20 be 04 00 00 00 e8 59 5f 00 00 48 8b 74 24 08 <89> 06 e9 1e 01 00 00 48 8b 44 24 08 48 8b 14 24 be 04 00 00 00 8b
RSP: 002b:00007ffc8190ddc0 EFLAGS: 00010206
RAX: ffffffffffffffff RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffffff
RBP: 0000000001190090 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffc8190dee0 R11: 0000000000000246 R12: 0000000001190098
R13: 000000000008a7e7 R14: fffffffffffffffe R15: 000000000118cf4c
Modules linked in:
---[ end trace 378bf98eaa08c202 ]---
RIP: 0010:__khugepaged_enter+0x306/0x3d0 mm/khugepaged.c:469
Code: e4 49 81 fe 20 c0 d2 89 74 2a e8 15 62 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 02 62 bb ff 48 89 ef e8 7a c6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 eb 61 bb ff 31 c9 ba 01 00 00 00
RSP: 0018:ffffc90017117cc0 EFLAGS: 00010286
RAX: 000000000000036a RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff88809e51a540 RSI: ffffffff815d9107 RDI: fffff52002e22f37
RBP: ffff88804fdb7580 R08: 000000000000036a R09: ffff8880ae6318e7
R10: 0000000000000000 R11: 00000000000cde98 R12: ffff8880930604d0
R13: ffff88804fdb75dc R14: 0000000020000000 R15: ffffc90017117df8
FS:  0000000002bfa940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fad87212220 CR3: 000000004e0cb000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400