------------[ cut here ]------------
pgoff != vma->vm_start >> 12
WARNING: mm/vma.h:277 at assert_sane_pgoff mm/vma.h:277 [inline], CPU#1: syz.7.5819/31116
WARNING: mm/vma.h:277 at vma_set_pgoff+0x246/0x2d0 mm/vma.h:283, CPU#1: syz.7.5819/31116
Modules linked in:
CPU: 1 UID: 0 PID: 31116 Comm: syz.7.5819 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:assert_sane_pgoff mm/vma.h:277 [inline]
RIP: 0010:vma_set_pgoff+0x246/0x2d0 mm/vma.h:283
Code: 0b 90 e9 d5 fe ff ff e8 38 9b 9f ff 4c 89 f7 e8 b0 11 00 ff c6 05 7d 7f 3b 0e 01 90 0f 0b 90 e9 fe fe ff ff e8 1b 9b 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:ffffc90003dff848 EFLAGS: 00010293
RAX: ffffffff82281885 RBX: 0000000200000a97 RCX: ffff88803018ddc0
RDX: 0000000000000000 RSI: 0000000200000001 RDI: 0000000200000a97
RBP: 0000000000000017 R08: ffff888032d55d03 R09: 1ffff110065aaba0
R10: dffffc0000000000 R11: ffffed10065aaba1 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff888032d55c80 R15: 0000000200000001
FS:  00007fd632c476c0(0000) GS:ffff888124ddc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000038 CR3: 000000003afe2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 vma_add_pgoff+0x1a8/0x570 mm/vma.h:314
 __split_vma+0x89e/0xa60 mm/vma.c:607
 split_vma mm/vma.c:643 [inline]
 vma_modify+0x887/0x1f40 mm/vma.c:1771
 vma_modify_policy+0x289/0x340 mm/vma.c:1834
 mbind_range+0x2c1/0x800 mm/mempolicy.c:1061
 do_mbind mm/mempolicy.c:1563 [inline]
 kernel_mbind mm/mempolicy.c:1760 [inline]
 __do_sys_mbind mm/mempolicy.c:1834 [inline]
 __se_sys_mbind+0xacd/0x10e0 mm/mempolicy.c:1830
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd631d9e159
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:00007fd632c47028 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 00007fd632025fa0 RCX: 00007fd631d9e159
RDX: 0000000000000001 RSI: 0000000000800000 RDI: 0000200000001000
RBP: 00007fd631e35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd632026038 R14: 00007fd632025fa0 R15: 00007fd63214fa48
 </TASK>