do_group_exit+0xd4/0x2a0 kernel/exit.c:1021
 get_signal+0x23ba/0x2790 kernel/signal.c:2881
 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6830 at mm/rmap.c:1252 page_add_anon_rmap+0xc33/0x1a70 mm/rmap.c:1252
Modules linked in:
CPU: 0 PID: 6830 Comm: syz-executor.4 Not tainted 6.6.0-rc2-next-20230918-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:page_add_anon_rmap+0xc33/0x1a70 mm/rmap.c:1252
Code: 48 c1 eb 11 83 e3 01 89 de e8 99 aa b8 ff 84 db 0f 84 36 fb ff ff e8 5c af b8 ff 48 c7 c6 40 89 99 8a 4c 89 e7 e8 dd 02 f7 ff <0f> 0b e9 1b fb ff ff e8 41 af b8 ff 49 89 dd 31 ff 41 81 e5 ff 0f
RSP: 0018:ffffc900039e78f0 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc9000b9f2000
RDX: 0000000000040000 RSI: ffffffff81cf4673 RDI: ffffffff8ae94460
RBP: ffff88807706b500 R08: 0000000000000000 R09: fffffbfff1d9d0aa
R10: ffffffff8ece8557 R11: 205d303338365420 R12: ffffea0002358000
R13: 00fff800000a0078 R14: 0000000000000000 R15: ffffea0002360008
FS:  00007fc0debdf6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31d23000 CR3: 0000000027e1b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __split_huge_pmd_locked mm/huge_memory.c:2276 [inline]
 __split_huge_pmd+0x17d5/0x31e0 mm/huge_memory.c:2320
 split_huge_pmd_address mm/huge_memory.c:2336 [inline]
 split_huge_pmd_if_needed mm/huge_memory.c:2348 [inline]
 split_huge_pmd_if_needed mm/huge_memory.c:2339 [inline]
 vma_adjust_trans_huge+0x2da/0x560 mm/huge_memory.c:2360
 __split_vma+0xba3/0x1070 mm/mmap.c:2376
 split_vma+0xc8/0x110 mm/mmap.c:2412
 mlock_fixup+0x9b7/0x1290 mm/mlock.c:438
 apply_vma_lock_flags+0x250/0x370 mm/mlock.c:514
 do_mlock+0x263/0x820 mm/mlock.c:610
 __do_sys_mlock2 mm/mlock.c:637 [inline]
 __se_sys_mlock2 mm/mlock.c:627 [inline]
 __x64_sys_mlock2+0xbd/0x100 mm/mlock.c:627
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc0dde7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc0debdf0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000145
RAX: ffffffffffffffda RBX: 00007fc0ddf9bf80 RCX: 00007fc0dde7cae9
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 000000002050b000
RBP: 00007fc0ddec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc0ddf9bf80 R15: 00007ffdc8bc13a8
 </TASK>