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kernel BUG at mm/khugepaged.c:469!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 17803 Comm: syz-executor.0 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 e0 a8 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:ffffc900043f7cc0 EFLAGS: 00010286
RAX: 000000000000034f RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff888055feda80 RSI: ffffffff815db887 RDI: fffff5200087ef37
RBP: ffff88802c154dc0 R08: 000000000000034f R09: ffff88802cf31927
R10: 0000000000000000 R11: 0000000000095a38 R12: ffff88802a2462c0
R13: ffff88802c154e1c R14: 0000000020000000 R15: ffffc900043f7df0
FS:  0000000000000000(0000) GS:ffff88802cf00000(0063) knlGS:000000000ab36900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000030924000 CR3: 0000000052056000 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: 0023:0x807d286
Code: 03 76 37 f7 c6 03 00 00 00 74 16 a4 49 f7 c6 03 00 00 00 74 0c a4 49 f7 c6 03 00 00 00 74 02 a4 49 50 89 c8 c1 e9 02 83 e0 03 <f3> a5 89 c1 f3 a4 58 89 c7 89 d6 8b 44 24 04 c3 d1 e9 73 01 a4 d1
RSP: 002b:00000000ffffd498 EFLAGS: 00010206
RAX: 0000000000000003 RBX: 0000000008158000 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 00000000081800b0 RDI: 0000000020000040
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 515813ac8d0b8eca ]---
RIP: 0010:__khugepaged_enter+0x306/0x3d0 mm/khugepaged.c:469
Code: e4 49 81 fe e0 a8 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:ffffc900043f7cc0 EFLAGS: 00010286
RAX: 000000000000034f RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff888055feda80 RSI: ffffffff815db887 RDI: fffff5200087ef37
RBP: ffff88802c154dc0 R08: 000000000000034f R09: ffff88802cf31927
R10: 0000000000000000 R11: 0000000000095a38 R12: ffff88802a2462c0
R13: ffff88802c154e1c R14: 0000000020000000 R15: ffffc900043f7df0
FS:  0000000000000000(0000) GS:ffff88802d000000(0063) knlGS:000000000ab36900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000815a934 CR3: 0000000052056000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400