get_swap_device: Bad swap offset entry 3ffffff7fffff
BUG: Bad page map in process syz.3.1699  pte:100000000 pmd:11c884067
addr:0000200000201000 vm_flags:00100077 anon_vma:ffff8881145c2450 mapping:0000000000000000 index:200000201
file:(null) fault:0x0 mmap:0x0 read_folio:0x0
CPU: 0 PID: 5402 Comm: syz.3.1699 Tainted: G        W          syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 print_bad_pte+0x57b/0x590 mm/memory.c:585
 zap_pte_range mm/memory.c:1511 [inline]
 zap_pmd_range mm/memory.c:1599 [inline]
 zap_pud_range mm/memory.c:1628 [inline]
 zap_p4d_range mm/memory.c:1649 [inline]
 unmap_page_range+0x201c/0x2330 mm/memory.c:1670
 unmap_single_vma mm/memory.c:1716 [inline]
 unmap_vmas+0x34c/0x480 mm/memory.c:1756
 exit_mmap+0x29b/0xc10 mm/mmap.c:3371
 __mmput+0x93/0x360 kernel/fork.c:1312
 mmput+0x4b/0x150 kernel/fork.c:1336
 exit_mm kernel/exit.c:568 [inline]
 do_exit+0x994/0x2660 kernel/exit.c:873
 do_group_exit+0x210/0x2d0 kernel/exit.c:1028
 get_signal+0x13b5/0x1520 kernel/signal.c:2891
 arch_do_signal_or_restart+0xd1/0x1140 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f1055f9c819
Code: Unable to access opcode bytes at 0x7f1055f9c7ef.
RSP: 002b:00007f10549d60e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f1056216098 RCX: 00007f1055f9c819
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1056216098
RBP: 00007f1056216090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1056216128 R14: 00007ffc958ba690 R15: 00007ffc958ba778
 </TASK>
BUG: Bad rss-counter state mm:ffff88810fb2d900 type:MM_ANONPAGES val:1
BUG: Bad rss-counter state mm:ffff88810fb2d900 type:MM_SWAPENTS val:-1