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kernel BUG at mm/khugepaged.c:1812!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 6260 Comm: syz-executor344 Not tainted 6.2.0-syzkaller-18302-g596b6b709632 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : collapse_file mm/khugepaged.c:1812 [inline]
pc : hpage_collapse_scan_file+0x462c/0x5334 mm/khugepaged.c:2222
lr : collapse_file mm/khugepaged.c:1812 [inline]
lr : hpage_collapse_scan_file+0x462c/0x5334 mm/khugepaged.c:2222
sp : ffff80001ead7220
x29: ffff80001ead7580 x28: ffff80001ead7480 x27: 0000000000000000
x26: 1ffff00003d5ae90 x25: 00000000000001c1 x24: dfff800000000000
x23: 00000000000001ff x22: ffffffffffffffd2 x21: ffff80001ead7488
x20: 00000000000001c0 x19: ffff0000e2e81c80 x18: 1fffe0003689b776
x17: ffff800015b8d000 x16: ffff80000850a534 x15: 0000000000000000
x14: 1ffff00002b720af x13: dfff800000000000 x12: 0000000000000001
x11: ff808000089b97c8 x10: 0000000000000000 x9 : ffff8000089b97c8
x8 : ffff0000cfc49b40 x7 : ffff8000087d574c x6 : 0000000000000000
x5 : 0000000000000001 x4 : 00000000ffffffff x3 : 0000000000402800
x2 : ffff0000c000d500 x1 : 00000000000001c0 x0 : 00000000000001c1
Call trace:
 collapse_file mm/khugepaged.c:1812 [inline]
 hpage_collapse_scan_file+0x462c/0x5334 mm/khugepaged.c:2222
 madvise_collapse+0x614/0xd78 mm/khugepaged.c:2682
 madvise_vma_behavior mm/madvise.c:1091 [inline]
 madvise_walk_vmas mm/madvise.c:1265 [inline]
 do_madvise+0xab0/0x2e98 mm/madvise.c:1444
 __do_sys_madvise mm/madvise.c:1457 [inline]
 __se_sys_madvise mm/madvise.c:1455 [inline]
 __arm64_sys_madvise+0xa4/0xc0 mm/madvise.c:1455
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
Code: 35ffffa9 d5033bbf 17fff2e3 97ed435c (d4210000) 
---[ end trace 0000000000000000 ]---