7f1be1539000-7f1be153cfff: ffff88802f747780
    7f1be153d000-7f1be153efff: ffff88802f7478c0
    7f1be153f000-7f1be1540fff: ffff888023d74a00
    7f1be1541000-7fff2f1a9fff: 0000000000000000
    7fff2f1aa000-7fff2f1cafff: ffff88802d4a1000
    7fff2f1cb000-ffffffffffffffff: 0000000000000000
------------[ cut here ]------------
WARNING: CPU: 0 PID: 17840 at mm/vma.c:768 vma_merge_existing_range+0x1257/0x15b0 mm/vma.c:768
Modules linked in:
CPU: 0 UID: 0 PID: 17840 Comm: syz.0.3157 Not tainted 6.15.0-rc5-syzkaller-00022-g01f95500a162 #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:ffffc900043b7af8 EFLAGS: 00010286
RAX: ffffffff8b4ed5fd RBX: ffffc900043b7c40 RCX: ffff88805cdcbc00
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: ffffffffffffffff
RBP: 0000200000800000 R08: ffffc900043b7627 R09: 1ffff92000876ec4
R10: dffffc0000000000 R11: fffff52000876ec5 R12: ffff88802784b8c0
R13: 1ffff92000876f8c R14: 0000200000000000 R15: 0000200000000000
FS:  00007f1be15176c0(0000) GS:ffff8881260cb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32d1fffc CR3: 0000000053a58000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 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: 0033:0x7f1be078e969
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:00007f1be1517038 EFLAGS: 00000246 ORIG_RAX: 0000000000000098
RAX: ffffffffffffffda RBX: 00007f1be09b6080 RCX: 00007f1be078e969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f1be1517090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f1be09b6080 R15: 00007f1be0adfa28
 </TASK>