------------[ cut here ]------------
pgoff != vma->vm_start >> 12
WARNING: mm/vma.h:276 at vma_set_pgoff+0x246/0x2d0, CPU#1: syz.5.2838/24255
Modules linked in:
CPU: 1 UID: 0 PID: 24255 Comm: syz.5.2838 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:vma_set_pgoff+0x246/0x2d0
Code: 0b 90 e9 d5 fe ff ff e8 68 bb 9f ff 4c 89 f7 e8 e0 37 00 ff c6 05 9b 87 3b 0e 01 90 0f 0b 90 e9 fe fe ff ff e8 4b bb 9f ff 90 <0f> 0b 90 eb 9d 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c eb fd ff ff
RSP: 0018:ffffc90004e4f3e8 EFLAGS: 00010293
RAX: ffffffff8227f305 RBX: 0000000200000930 RCX: ffff8881032ebc00
RDX: 0000000000000000 RSI: 0000000200000130 RDI: 0000000200000930
RBP: 000000000000005f R08: ffff88816dd35103 R09: 1ffff1102dba6a20
R10: dffffc0000000000 R11: ffffed102dba6a21 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88816dd35080 R15: 0000000200000130
FS:  00007fa70ebb46c0(0000) GS:ffff8882a8ce6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa70ebb3ff8 CR3: 000000016da72000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __split_vma+0x9a0/0xbf0
 vms_gather_munmap_vmas+0x322/0x1370
 do_vmi_align_munmap+0x2b4/0x4b0
 do_vmi_munmap+0x252/0x2d0
 do_munmap+0xf5/0x160
 mremap_to+0x33a/0x8d0
 __se_sys_mremap+0xf59/0x12d0
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa71099e159
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:00007fa70ebb4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000019
RAX: ffffffffffffffda RBX: 00007fa710c26360 RCX: 00007fa71099e159
RDX: 0000000000800000 RSI: 0000000000001000 RDI: 0000200000a96000
RBP: 00007fa710a3506b R08: 0000200000130000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa710c263f8 R14: 00007fa710c26360 R15: 00007ffc1036c418
 </TASK>
