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kernel BUG at mm/khugepaged.c:469!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 12161 Comm: syz-executor.1 Not tainted 5.8.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:__khugepaged_enter+0x306/0x3d0 mm/khugepaged.c:469
Code: e4 49 81 fe 60 aa c9 89 74 2a e8 f5 a1 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 e2 a1 bb ff 48 89 ef e8 2a da e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 cb a1 bb ff 31 c9 ba 01 00 00 00
RSP: 0018:ffffc9000431fcc0 EFLAGS: 00010286
RAX: 000000000000034f RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff8880223a4a40 RSI: ffffffff815db8f7 RDI: fffff52000863f37
RBP: ffff88802511ea00 R08: 000000000000034f R09: ffff88802cf31927
R10: 0000000000000000 R11: 00000000000d79e8 R12: ffff88801c083a50
R13: ffff88802511ea5c R14: 0000000020000000 R15: ffffc9000431fdf0
FS:  0000000000000000(0000) GS:ffff88802cf00000(0063) knlGS:0000000009e64900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000095ac984 CR3: 00000000603bb000 CR4: 0000000000350ee0
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:727
 create_huge_pmd mm/memory.c:4110 [inline]
 __handle_mm_fault mm/memory.c:4331 [inline]
 handle_mm_fault+0x35dd/0x43f0 mm/memory.c:4397
 do_user_addr_fault+0x5a2/0xd00 arch/x86/mm/fault.c:1294
 handle_page_fault arch/x86/mm/fault.c:1364 [inline]
 exc_page_fault+0xa8/0x160 arch/x86/mm/fault.c:1417
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538
RIP: 0023:0x80486e6
Code: 24 28 0b 54 24 2c 09 c2 75 27 ff 74 24 0c ff 74 24 0c 6a 00 6a 04 8b 44 24 40 8b 54 24 44 e8 e1 5e 00 00 83 c4 10 8b 7c 24 1c <89> 07 e9 ca 01 00 00 8b 44 24 1c 31 d2 8b 00 ff 74 24 0c ff 74 24
RSP: 002b:00000000ff872cb0 EFLAGS: 00010282
RAX: 0000000000000005 RBX: 0000000008159000 RCX: 0000000000000005
RDX: 0000000000000000 RSI: 00000000ff872e70 RDI: 000000002000a000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 692dfbac7b591846 ]---
RIP: 0010:__khugepaged_enter+0x306/0x3d0 mm/khugepaged.c:469
Code: e4 49 81 fe 60 aa c9 89 74 2a e8 f5 a1 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 e2 a1 bb ff 48 89 ef e8 2a da e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 cb a1 bb ff 31 c9 ba 01 00 00 00
RSP: 0018:ffffc9000431fcc0 EFLAGS: 00010286
RAX: 000000000000034f RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff8880223a4a40 RSI: ffffffff815db8f7 RDI: fffff52000863f37
RBP: ffff88802511ea00 R08: 000000000000034f R09: ffff88802cf31927
R10: 0000000000000000 R11: 00000000000d79e8 R12: ffff88801c083a50
R13: ffff88802511ea5c R14: 0000000020000000 R15: ffffc9000431fdf0
FS:  0000000000000000(0000) GS:ffff88802d000000(0063) knlGS:0000000009e64900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000814e814 CR3: 00000000603bb000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400