__swap_info_get: Bad swap file entry 38004444447fffff
BUG: Bad page map in process syz-executor.4  pte:7777777700000000 pmd:00104067
addr:00007fe9bf993000 vm_flags:08100073 anon_vma:ffff8880b2ed0200 mapping:0000000000000000 index:7fe9bf993
file:(null) fault:0x0 mmap:0x0 readpage:0x0
CPU: 0 PID: 5763 Comm: syz-executor.4 Not tainted 5.16.0-rc2-next-20211125-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_bad_pte.cold+0x2bc/0x2e5 mm/memory.c:562
 zap_pte_range mm/memory.c:1398 [inline]
 zap_pmd_range mm/memory.c:1467 [inline]
 zap_pud_range mm/memory.c:1496 [inline]
 zap_p4d_range mm/memory.c:1517 [inline]
 unmap_page_range+0x232f/0x32e0 mm/memory.c:1538
 unmap_single_vma+0x198/0x310 mm/memory.c:1583
 unmap_vmas+0x16b/0x2f0 mm/memory.c:1615
 exit_mmap+0x1d0/0x630 mm/mmap.c:3176
 __mmput+0x122/0x4b0 kernel/fork.c:1115
 mmput+0x56/0x60 kernel/fork.c:1136
 exit_mm kernel/exit.c:507 [inline]
 do_exit+0xb27/0x2c20 kernel/exit.c:819
 do_group_exit+0x125/0x310 kernel/exit.c:929
 get_signal+0x34c/0x28b0 kernel/signal.c:2859
 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fe9bf3a3ae9
Code: Unable to access opcode bytes at RIP 0x7fe9bf3a3abf.
RSP: 002b:00007fe9bc8f8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039
RAX: fffffffffffffffc RBX: 00007fe9bf4b7020 RCX: 00007fe9bf3a3ae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fe9bf3fdf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdfd75904f R14: 00007fe9bc8f8300 R15: 0000000000022000
 </TASK>
BUG: Bad rss-counter state mm:ffff8880873b5b00 type:MM_SWAPENTS val:-1