7fb563552000-7fb563555fff: ffff88801eb28640
    7fb563556000-7fb563557fff: ffff88801eb283c0
    7fb563558000-7fb563559fff: ffff88801eb28780
    7fb56355a000-7ffc84cf9fff: 0000000000000000
    7ffc84cfa000-7ffc84d1afff: ffff88801eb28c80
    7ffc84d1b000-ffffffffffffffff: 0000000000000000
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8141 at mm/vma.c:768 vma_merge_existing_range+0x1257/0x15b0 mm/vma.c:768
Modules linked in:
CPU: 0 UID: 0 PID: 8141 Comm: syz.1.584 Not tainted 6.15.0-rc5-syzkaller-00136-g9c69f8884904 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
RIP: 0010:vma_merge_existing_range+0x1257/0x15b0 mm/vma.c:768
Code: 0b 90 e9 52 f0 ff ff e8 d7 dd ab ff 90 0f 0b 90 e9 87 ef ff ff e8 c9 dd ab ff 48 89 df 48 c7 c6 a0 62 76 8b e8 ea ff f2 ff 90 <0f> 0b 90 e9 ff ef ff ff e8 ac dd ab ff e9 04 f1 ff ff e8 a2 dd ab
RSP: 0018:ffffc90004a77af8 EFLAGS: 00010286
RAX: ffffffff8b4eb5fd RBX: ffffc90004a77c40 RCX: ffff888027c78000
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: ffffffffffffffff
RBP: 0000200000800000 R08: ffffc90004a77627 R09: 1ffff9200094eec4
R10: dffffc0000000000 R11: fffff5200094eec5 R12: ffff888069245a00
R13: 1ffff9200094ef8c R14: 0000200000728000 R15: 0000200000728000
FS:  00007fb5635516c0(0000) GS:ffff8881260cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd0c39212c0 CR3: 0000000052406000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vma_modify+0x76/0x460 mm/vma.c:1564
 vma_modify_flags+0x1e8/0x230 mm/vma.c:1605
 mlock_fixup+0x22a/0x360 mm/mlock.c:483
 apply_mlockall_flags+0x2f0/0x3c0 mm/mlock.c:736
 __ia32_sys_munlockall+0x10a/0x220 mm/mlock.c:782
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb56278e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb563551038 EFLAGS: 00000246 ORIG_RAX: 0000000000000098
RAX: ffffffffffffffda RBX: 00007fb5629b5fa0 RCX: 00007fb56278e969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fb563551090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fb5629b5fa0 R15: 00007fb562adfa28
 </TASK>