do_exit+0x8fc/0x2530 kernel/exit.c:866
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1032
 __do_sys_exit_group kernel/exit.c:1043 [inline]
 __se_sys_exit_group kernel/exit.c:1041 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1041
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:1180!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6560 Comm: syz.3.135 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:folio_entire_mapcount include/linux/mm.h:1180 [inline]
RIP: 0010:__dump_page mm/debug.c:104 [inline]
RIP: 0010:dump_page+0xe84/0x1550 mm/debug.c:139
Code: bf ff 48 83 e3 40 0f 85 46 04 00 00 e8 e5 58 bf ff e9 91 04 00 00 e8 db 58 bf ff 4c 89 e7 48 c7 c6 c0 ce d4 8a e8 7c f1 ff ff <0f> 0b 4c 89 fe 48 81 e6 ff 0f 00 00 31 ff e8 f9 5c bf ff 4c 89 fd
RSP: 0018:ffffc90004a5f7c8 EFLAGS: 00010246
RAX: 093c758a6b8a6900 RBX: 0000000000000000 RCX: 093c758a6b8a6900
RDX: 0000000000000009 RSI: ffffffff8acade60 RDI: ffffffff8b1d3ba0
RBP: ffffea00012e0008 R08: ffffffff8e8c316f R09: 1ffffffff1d1862d
R10: dffffc0000000000 R11: fffffbfff1d1862e R12: ffffea00012e0000
R13: 1ffffd400025c000 R14: 0000000000000000 R15: ffffea00012e0000
FS:  00007f9f856946c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558896b4e8 CR3: 00000000698d7000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 set_migratetype_isolate+0x146e/0x1680 mm/page_isolation.c:200
 start_isolate_page_range+0x146/0x280 mm/page_isolation.c:561
 offline_pages+0x440/0x2b20 mm/memory_hotplug.c:1933
 memory_block_offline drivers/base/memory.c:264 [inline]
 memory_block_action drivers/base/memory.c:297 [inline]
 memory_block_change_state+0x42d/0x6e0 drivers/base/memory.c:319
 device_offline+0x25d/0x3b0 drivers/base/core.c:4252
 state_store+0x99/0x170 drivers/base/memory.c:380
 kernfs_fop_write_iter+0x3a4/0x520 fs/kernfs/file.c:352
 call_write_iter include/linux/fs.h:2018 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x474/0x9a0 fs/read_write.c:584
 ksys_write+0x151/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9f8479e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9f85694028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9f84a26090 RCX: 00007f9f8479e159
RDX: 0000000000000007 RSI: 0000200000000200 RDI: 0000000000000006
RBP: 00007f9f8483506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9f84a26128 R14: 00007f9f84a26090 R15: 00007ffd0eb30158
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_entire_mapcount include/linux/mm.h:1180 [inline]
RIP: 0010:__dump_page mm/debug.c:104 [inline]
RIP: 0010:dump_page+0xe84/0x1550 mm/debug.c:139
Code: bf ff 48 83 e3 40 0f 85 46 04 00 00 e8 e5 58 bf ff e9 91 04 00 00 e8 db 58 bf ff 4c 89 e7 48 c7 c6 c0 ce d4 8a e8 7c f1 ff ff <0f> 0b 4c 89 fe 48 81 e6 ff 0f 00 00 31 ff e8 f9 5c bf ff 4c 89 fd
RSP: 0018:ffffc90004a5f7c8 EFLAGS: 00010246
RAX: 093c758a6b8a6900 RBX: 0000000000000000 RCX: 093c758a6b8a6900
RDX: 0000000000000009 RSI: ffffffff8acade60 RDI: ffffffff8b1d3ba0
RBP: ffffea00012e0008 R08: ffffffff8e8c316f R09: 1ffffffff1d1862d
R10: dffffc0000000000 R11: fffffbfff1d1862e R12: ffffea00012e0000
R13: 1ffffd400025c000 R14: 0000000000000000 R15: ffffea00012e0000
FS:  00007f9f856946c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555642839f8 CR3: 00000000698d7000 CR4: 00000000003506e0