swap_info_get: Bad swap file entry 3ffffffbbbbbb
BUG: Bad page map in process syz-executor.4  pte:88888888 pmd:0010a067
addr:0000000000c35000 vm_flags:08100073 anon_vma:ffff88805424e400 mapping:0000000000000000 index:c35
file:(null) fault:0x0 mmap:0x0 readpage:0x0
CPU: 0 PID: 5315 Comm: syz-executor.4 Not tainted 5.7.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 print_bad_pte.cold+0x1c1/0x21b mm/memory.c:546
 zap_pte_range mm/memory.c:1138 [inline]
 zap_pmd_range mm/memory.c:1196 [inline]
 zap_pud_range mm/memory.c:1225 [inline]
 zap_p4d_range mm/memory.c:1246 [inline]
 unmap_page_range+0x1b57/0x25d0 mm/memory.c:1267
 unmap_single_vma+0x196/0x300 mm/memory.c:1312
 unmap_vmas+0x16f/0x2f0 mm/memory.c:1344
 exit_mmap+0x2aa/0x510 mm/mmap.c:3150
 __mmput kernel/fork.c:1085 [inline]
 mmput+0x168/0x4b0 kernel/fork.c:1106
 exit_mm kernel/exit.c:480 [inline]
 do_exit+0xa51/0x2dd0 kernel/exit.c:783
 do_group_exit+0x125/0x340 kernel/exit.c:894
 get_signal+0x47b/0x24e0 kernel/signal.c:2739
 do_signal+0x81/0x2240 arch/x86/kernel/signal.c:784
 exit_to_usermode_loop+0x26c/0x360 arch/x86/entry/common.c:161
 prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:279 [inline]
 do_syscall_64+0x6b1/0x7d0 arch/x86/entry/common.c:305
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca29
Code: Bad RIP value.
RSP: 002b:00007fa6b2a2bcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 000000000078bfa8 RCX: 000000000045ca29
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 000000000078bfac
RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bfac
R13: 0000000000c9fb6f R14: 00007fa6b2a2c9c0 R15: 000000000078bfac
BUG: Bad rss-counter state mm:0000000009819c0d type:MM_SWAPENTS val:-1