0-200001000fff: node ffff88801f611000 depth 1 type 1 parent ffff8880008fd006 contents: 0000000000000000 1FFFFFFFEFFF ffff88801f9cf640 1FFFFFFFFFFF ffff88801e1d4000 20000012FFFF ffff88801c29f640 2000007FFFFF ffff88801c29fa00 20000092FFFF ffff88801c29f500 200000A92FFF ffff88801c29f3c0 200000A95FFF 0000000000000000 200000A96FFF ffff88801e1d43c0 200000FFFFFF ffff88801f9cf8c0 200001000FFF 0000000000000000 0 0000000000000000 0 0000000000000000 0 0000000000000000 0 0000000000000000 0 0000000000000009
    0-1fffffffefff: 0000000000000000
    1ffffffff000-1fffffffffff: ffff88801f9cf640
    200000000000-20000012ffff: ffff88801e1d4000
    200000130000-2000007fffff: ffff88801c29f640
    200000800000-20000092ffff: ffff88801c29fa00
    200000930000-200000a92fff: ffff88801c29f500
    200000a93000-200000a95fff: ffff88801c29f3c0
    200000a96000-200000a96fff: 0000000000000000
    200000a97000-200000ffffff: ffff88801e1d43c0
    200001000000-200001000fff: ffff88801f9cf8c0
  200001001000-7fcc365f9fff: node ffff88801f611600 depth 1 type 1 parent ffff8880008fd00e contents: 0000000000000000 5555921D3FFF ffff88801f9cfa00 5555921F5FFF 0000000000000000 7FCC355F5FFF ffff88801f9cfb40 7FCC355F6FFF ffff88801f9cf780 7FCC35DF6FFF ffff88801f9cfc80 7FCC35DF7FFF ffff8880433ebc80 7FCC365F7FFF ffff8880433eba00 7FCC365F9FFF 0000000000000000 0 0000000000000000 0 0000000000000000 0 0000000000000000 0 0000000000000000 0 0000000000000000 0 0000000000000000 0 0000000000000007
    200001001000-5555921d3fff: 0000000000000000
    5555921d4000-5555921f5fff: ffff88801f9cfa00
    5555921f6000-7fcc355f5fff: 0000000000000000
    7fcc355f6000-7fcc355f6fff: ffff88801f9cfb40
    7fcc355f7000-7fcc35df6fff: ffff88801f9cf780
    7fcc35df7000-7fcc35df7fff: ffff88801f9cfc80
    7fcc35df8000-7fcc365f7fff: ffff8880433ebc80
    7fcc365f8000-7fcc365f9fff: ffff8880433eba00
  7fcc365fa000-7fcc39eedfff: node ffff888042263000 depth 1 type 1 parent ffff8880008fd016 contents: ffff8880433eb780 7FCC36DF9FFF ffff8880433eb500 7FCC36DFBFFF ffff8880433eb3c0 7FCC375FBFFF ffff8880433eb140 7FCC375FDFFF ffff8880433ebdc0 7FCC37DFDFFF ffff8880433ebb40 7FCC37DFEFFF ffff8880433eb8c0 7FCC38BFEFFF ffff8880433eb640 7FCC38FFFFFF ffff8880433eb280 7FCC39048FFF ffff8880433eb000 7FCC391EAFFF ffff8880358b4b40 7FCC39297FFF ffff8880358b4a00 7FCC3937CFFF ffff8880358b4640 7FCC39385FFF 0000000000000000 7FCC3938FFFF ffff8880358b4780 7FCC39EEDFFF 000000000000000e
    7fcc365fa000-7fcc36df9fff: ffff8880433eb780
    7fcc36dfa000-7fcc36dfbfff: ffff8880433eb500
    7fcc36dfc000-7fcc375fbfff: ffff8880433eb3c0
    7fcc375fc000-7fcc375fdfff: ffff8880433eb140
    7fcc375fe000-7fcc37dfdfff: ffff8880433ebdc0
    7fcc37dfe000-7fcc37dfefff: ffff8880433ebb40
    7fcc37dff000-7fcc38bfefff: ffff8880433eb8c0
    7fcc38bff000-7fcc38ffffff: ffff8880433eb640
    7fcc39000000-7fcc39048fff: ffff8880433eb280
    7fcc39049000-7fcc391eafff: ffff8880433eb000
    7fcc391eb000-7fcc39297fff: ffff8880358b4b40
    7fcc39298000-7fcc3937cfff: ffff8880358b4a00
    7fcc3937d000-7fcc39385fff: ffff8880358b4640
    7fcc39386000-7fcc3938ffff: 0000000000000000
    7fcc39390000-7fcc39eedfff: ffff8880358b4780
  7fcc39eee000-ffffffffffffffff: node ffff88803f819600 depth 1 type 1 parent ffff8880008fd01e contents: 0000000000000000 7FCC3A058FFF ffff8880358b4000 7FCC3A059FFF ffff8880358b43c0 7FCC3A079FFF ffff88801e1d48c0 7FCC3A07AFFF ffff8880358b4280 7FCC3A09AFFF ffff8880358b4500 7FCC3A09BFFF ffff8880358b4140 7FCC3A09FFFF ffff8880358b4dc0 7FCC3A0A1FFF ffff8880358b4c80 7FCC3A0A3FFF 0000000000000000 7FFC9210FFFF ffff8880358b48c0 7FFC92130FFF 0000000000000000 FFFFFFFFFFFFFFFF 0000000000000000 0 0000000000000000 0 0000000000000000 0 000000000000000b
    7fcc39eee000-7fcc3a058fff: 0000000000000000
    7fcc3a059000-7fcc3a059fff: ffff8880358b4000
    7fcc3a05a000-7fcc3a079fff: ffff8880358b43c0
    7fcc3a07a000-7fcc3a07afff: ffff88801e1d48c0
    7fcc3a07b000-7fcc3a09afff: ffff8880358b4280
    7fcc3a09b000-7fcc3a09bfff: ffff8880358b4500
    7fcc3a09c000-7fcc3a09ffff: ffff8880358b4140
    7fcc3a0a0000-7fcc3a0a1fff: ffff8880358b4dc0
    7fcc3a0a2000-7fcc3a0a3fff: ffff8880358b4c80
    7fcc3a0a4000-7ffc9210ffff: 0000000000000000
    7ffc92110000-7ffc92130fff: ffff8880358b48c0
    7ffc92131000-ffffffffffffffff: 0000000000000000
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5320 at mm/vma.c:768 vma_merge_existing_range+0x1257/0x15b0 mm/vma.c:768
Modules linked in:
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted 6.15.0-rc5-syzkaller-00022-g01f95500a162 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
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:ffffc9000d59faf8 EFLAGS: 00010286
RAX: ffffffff8b4ed5fd RBX: ffffc9000d59fc40 RCX: ffff88801f274880
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: ffffffffffffffff
RBP: 0000200000800000 R08: ffff88801fe23e93 R09: 1ffff11003fc47d2
R10: dffffc0000000000 R11: ffffed1003fc47d3 R12: ffff88801c29f640
R13: 1ffff92001ab3f8c R14: 0000200000130000 R15: 0000200000130000
FS:  00007fcc3a09a6c0(0000) GS:ffff88808d6cb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f658850c319 CR3: 000000003612a000 CR4: 0000000000352ef0
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: 0033:0x7fcc3918e969
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:00007fcc3a09a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000098
RAX: ffffffffffffffda RBX: 00007fcc393b5fa0 RCX: 00007fcc3918e969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcc3a09a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fcc393b5fa0 R15: 00007ffc9212f578
 </TASK>