BUG: Bad page map in process syz-executor.2  pte:fffffc89ff120 pmd:31bdf067
page:ffffea0000dd8000 refcount:9 mapcount:-1 mapping:ffff88803d9c5950 index:0x0 pfn:0x37600
head:ffffea0000dd8000 order:2 entire_mapcount:0 nr_pages_mapped:1 pincount:0
memcg:ffff88803713a000
aops:xfs_address_space_operations ino:244a dentry name:"bus"
flags: 0xfff0000000816c(referenced|uptodate|lru|active|private|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xfffffffe()
raw: 00fff0000000816c ffffea00011bb308 ffff8880370a3030 ffff88803d9c5950
raw: 0000000000000000 ffff8880294c1000 00000009fffffffe ffff88803713a000
page dumped because: bad pte
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 15753, tgid 15750 (syz-executor.2), ts 2264788809075, free_ts 2252312465928
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536
 prep_new_page mm/page_alloc.c:1543 [inline]
 get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170
 __alloc_pages+0x255/0x670 mm/page_alloc.c:4426
 folio_alloc+0x1e/0x60 mm/mempolicy.c:2308
 filemap_alloc_folio+0xde/0x500 mm/filemap.c:976
 ra_alloc_folio mm/readahead.c:468 [inline]
 page_cache_ra_order+0x423/0xcc0 mm/readahead.c:524
 do_sync_mmap_readahead+0x444/0x850
 filemap_fault+0x7d3/0x1710 mm/filemap.c:3291
 __xfs_filemap_fault+0x286/0x960 fs/xfs/xfs_file.c:1354
 __do_fault+0x133/0x4e0 mm/memory.c:4204
 do_read_fault mm/memory.c:4568 [inline]
 do_fault mm/memory.c:4705 [inline]
 do_pte_missing mm/memory.c:3669 [inline]
 handle_pte_fault mm/memory.c:4978 [inline]
 __handle_mm_fault mm/memory.c:5119 [inline]
 handle_mm_fault+0x428e/0x62b0 mm/memory.c:5284
 faultin_page mm/gup.c:956 [inline]
 __get_user_pages+0x6bd/0x15f0 mm/gup.c:1239
 __get_user_pages_locked mm/gup.c:1504 [inline]
 get_dump_page+0x146/0x2b0 mm/gup.c:2018
 dump_user_range+0x126/0x910 fs/coredump.c:913
 elf_core_dump+0x3c91/0x4540 fs/binfmt_elf.c:2142
 do_coredump+0x1b73/0x2ab0 fs/coredump.c:764
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1136 [inline]
 free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312
 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2451
 release_pages+0x2113/0x23f0 mm/swap.c:1042
 __folio_batch_release+0x84/0x100 mm/swap.c:1062
 folio_batch_release include/linux/pagevec.h:83 [inline]
 shmem_undo_range+0x6ad/0x19c0 mm/shmem.c:1022
 shmem_truncate_range mm/shmem.c:1114 [inline]
 shmem_evict_inode+0x29e/0xa80 mm/shmem.c:1243
 evict+0x2a4/0x620 fs/inode.c:664
 __dentry_kill+0x436/0x650 fs/dcache.c:607
 dentry_kill+0xbb/0x290
 dput+0x21e/0x470 fs/dcache.c:913
 __fput+0x60d/0x910 fs/file_table.c:392
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
addr:0000000020003000 vm_flags:080000d0 anon_vma:0000000000000000 mapping:ffff88803d9c5950 index:2
file:bus fault:xfs_filemap_fault mmap:xfs_file_mmap read_folio:xfs_vm_read_folio
CPU: 1 PID: 15750 Comm: syz-executor.2 Not tainted 6.6.0-rc3-syzkaller-00055-g9ed22ae6be81 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_bad_pte+0x581/0x5c0 mm/memory.c:535
 zap_pte_range mm/memory.c:1458 [inline]
 zap_pmd_range mm/memory.c:1573 [inline]
 zap_pud_range mm/memory.c:1602 [inline]
 zap_p4d_range mm/memory.c:1623 [inline]
 unmap_page_range+0x1a76/0x3320 mm/memory.c:1644
 unmap_vmas+0x2b8/0x460 mm/memory.c:1731
 exit_mmap+0x297/0xc50 mm/mmap.c:3210
 __mmput+0x115/0x3c0 kernel/fork.c:1349
 exit_mm+0x21f/0x300 kernel/exit.c:567
 do_exit+0x9af/0x2650 kernel/exit.c:861
 do_group_exit+0x206/0x2c0 kernel/exit.c:1024
 get_signal+0x175d/0x1840 kernel/signal.c:2892
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f80d227cae9
Code: Unable to access opcode bytes at 0x7f80d227cabf.
RSP: 002b:00007ffffbdc0878 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 0000000000228e9d RCX: 00007f80d227cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f80d239bf8c
RBP: 0000000000000032 R08: 00007f80d239bf8c R09: 00007f80d239bf8c
R10: 00007ffffbdc09b0 R11: 0000000000000246 R12: 00007f80d239bf8c
R13: 0000000000228ecf R14: 00007ffffbdc09d0 R15: 00007ffffbdc09b0
 </TASK>
BUG: Bad page map in process syz-executor.2  pte:fffffc8a00120 pmd:31bdf067
page:ffffea0000dd7fc0 refcount:1 mapcount:-1 mapping:ffff88801f43d9d8 index:0x3ac pfn:0x375ff
memcg:ffff88807a992000
aops:shmem_aops ino:b dentry name:"memfd:syz-shared-mem"
flags: 0xfff0000008012c(referenced|uptodate|lru|active|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xfffffffe()
raw: 00fff0000008012c ffffea0000dd7f48 ffffea0000eaa648 ffff88801f43d9d8
raw: 00000000000003ac 0000000000000000 00000001fffffffe ffff88807a992000
page dumped because: bad pte
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 17841, tgid 17840 (syz-executor.5), ts 806593393534, free_ts 805703015534
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536
 prep_new_page mm/page_alloc.c:1543 [inline]
 get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170
 __alloc_pages+0x255/0x670 mm/page_alloc.c:4426
 __folio_alloc+0x13/0x30 mm/page_alloc.c:4458
 vma_alloc_folio+0x48a/0x9a0 mm/mempolicy.c:2259
 shmem_alloc_folio mm/shmem.c:1658 [inline]
 shmem_alloc_and_acct_folio+0x438/0x9b0 mm/shmem.c:1683
 shmem_get_folio_gfp+0xca4/0x2b60 mm/shmem.c:2020
 shmem_fault+0x219/0x7e0 mm/shmem.c:2227
 __do_fault+0x133/0x4e0 mm/memory.c:4204
 do_read_fault mm/memory.c:4568 [inline]
 do_fault mm/memory.c:4705 [inline]
 do_pte_missing mm/memory.c:3669 [inline]
 handle_pte_fault mm/memory.c:4978 [inline]
 __handle_mm_fault mm/memory.c:5119 [inline]
 handle_mm_fault+0x428e/0x62b0 mm/memory.c:5284
 faultin_page mm/gup.c:956 [inline]
 __get_user_pages+0x6bd/0x15f0 mm/gup.c:1239
 __get_user_pages_locked mm/gup.c:1504 [inline]
 get_dump_page+0x146/0x2b0 mm/gup.c:2018
 dump_user_range+0x126/0x910 fs/coredump.c:913
 elf_core_dump+0x3c91/0x4540 fs/binfmt_elf.c:2142
 do_coredump+0x1b73/0x2ab0 fs/coredump.c:764
 get_signal+0x145e/0x1840 kernel/signal.c:2878
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1136 [inline]
 free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312
 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2451
 release_pages+0x2113/0x23f0 mm/swap.c:1042
 __folio_batch_release+0x84/0x100 mm/swap.c:1062
 folio_batch_release include/linux/pagevec.h:83 [inline]
 shmem_undo_range+0x6ad/0x19c0 mm/shmem.c:1022
 shmem_truncate_range mm/shmem.c:1114 [inline]
 shmem_evict_inode+0x29e/0xa80 mm/shmem.c:1243
 evict+0x2a4/0x620 fs/inode.c:664
 __dentry_kill+0x436/0x650 fs/dcache.c:607
 dentry_kill+0xbb/0x290
 dput+0x21e/0x470 fs/dcache.c:913
 __fput+0x60d/0x910 fs/file_table.c:392
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
addr:0000000020004000 vm_flags:080000d0 anon_vma:0000000000000000 mapping:ffff88803d9c5950 index:3
file:bus fault:xfs_filemap_fault mmap:xfs_file_mmap read_folio:xfs_vm_read_folio
CPU: 0 PID: 15750 Comm: syz-executor.2 Tainted: G    B              6.6.0-rc3-syzkaller-00055-g9ed22ae6be81 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_bad_pte+0x581/0x5c0 mm/memory.c:535
 zap_pte_range mm/memory.c:1458 [inline]
 zap_pmd_range mm/memory.c:1573 [inline]
 zap_pud_range mm/memory.c:1602 [inline]
 zap_p4d_range mm/memory.c:1623 [inline]
 unmap_page_range+0x1a76/0x3320 mm/memory.c:1644
 unmap_vmas+0x2b8/0x460 mm/memory.c:1731
 exit_mmap+0x297/0xc50 mm/mmap.c:3210
 __mmput+0x115/0x3c0 kernel/fork.c:1349
 exit_mm+0x21f/0x300 kernel/exit.c:567
 do_exit+0x9af/0x2650 kernel/exit.c:861
 do_group_exit+0x206/0x2c0 kernel/exit.c:1024
 get_signal+0x175d/0x1840 kernel/signal.c:2892
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f80d227cae9
Code: Unable to access opcode bytes at 0x7f80d227cabf.
RSP: 002b:00007ffffbdc0878 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 0000000000228e9d RCX: 00007f80d227cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f80d239bf8c
RBP: 0000000000000032 R08: 00007f80d239bf8c R09: 00007f80d239bf8c
R10: 00007ffffbdc09b0 R11: 0000000000000246 R12: 00007f80d239bf8c
R13: 0000000000228ecf R14: 00007ffffbdc09d0 R15: 00007ffffbdc09b0
 </TASK>
BUG: Bad page map in process syz-executor.2  pte:fffffc89fe120 pmd:31bdf067
page:ffffea0000dd8040 refcount:9 mapcount:-1 mapping:ffff88803d9c5950 index:0x1 pfn:0x37601
head:ffffea0000dd8000 order:2 entire_mapcount:0 nr_pages_mapped:8388606 pincount:0
memcg:ffff88803713a000
aops:xfs_address_space_operations ino:244a dentry name:"bus"
flags: 0xfff0000000816c(referenced|uptodate|lru|active|private|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xfffffffe()
raw: 00fff00000000202 ffffea0000dd8001 dead000000000122 fffffffeffffffff
raw: 0000000400000000 0000000000000000 00000000fffffffe 0000000000000000
head: 00fff0000000816c ffffea00011bb308 ffff8880370a3030 ffff88803d9c5950
head: 0000000000000000 ffff8880294c1000 00000009fffffffe ffff88803713a000
page dumped because: bad pte
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 15753, tgid 15750 (syz-executor.2), ts 2264788809075, free_ts 2252312450711
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536
 prep_new_page mm/page_alloc.c:1543 [inline]
 get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170
 __alloc_pages+0x255/0x670 mm/page_alloc.c:4426
 folio_alloc+0x1e/0x60 mm/mempolicy.c:2308
 filemap_alloc_folio+0xde/0x500 mm/filemap.c:976
 ra_alloc_folio mm/readahead.c:468 [inline]
 page_cache_ra_order+0x423/0xcc0 mm/readahead.c:524
 do_sync_mmap_readahead+0x444/0x850
 filemap_fault+0x7d3/0x1710 mm/filemap.c:3291
 __xfs_filemap_fault+0x286/0x960 fs/xfs/xfs_file.c:1354
 __do_fault+0x133/0x4e0 mm/memory.c:4204
 do_read_fault mm/memory.c:4568 [inline]
 do_fault mm/memory.c:4705 [inline]
 do_pte_missing mm/memory.c:3669 [inline]
 handle_pte_fault mm/memory.c:4978 [inline]
 __handle_mm_fault mm/memory.c:5119 [inline]
 handle_mm_fault+0x428e/0x62b0 mm/memory.c:5284
 faultin_page mm/gup.c:956 [inline]
 __get_user_pages+0x6bd/0x15f0 mm/gup.c:1239
 __get_user_pages_locked mm/gup.c:1504 [inline]
 get_dump_page+0x146/0x2b0 mm/gup.c:2018
 dump_user_range+0x126/0x910 fs/coredump.c:913
 elf_core_dump+0x3c91/0x4540 fs/binfmt_elf.c:2142
 do_coredump+0x1b73/0x2ab0 fs/coredump.c:764
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1136 [inline]
 free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312
 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2451
 release_pages+0x2113/0x23f0 mm/swap.c:1042
 __folio_batch_release+0x84/0x100 mm/swap.c:1062
 folio_batch_release include/linux/pagevec.h:83 [inline]
 shmem_undo_range+0x6ad/0x19c0 mm/shmem.c:1022
 shmem_truncate_range mm/shmem.c:1114 [inline]
 shmem_evict_inode+0x29e/0xa80 mm/shmem.c:1243
 evict+0x2a4/0x620 fs/inode.c:664
 __dentry_kill+0x436/0x650 fs/dcache.c:607
 dentry_kill+0xbb/0x290
 dput+0x21e/0x470 fs/dcache.c:913
 __fput+0x60d/0x910 fs/file_table.c:392
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
addr:0000000020008000 vm_flags:080000d0 anon_vma:0000000000000000 mapping:ffff88803d9c5950 index:7
file:bus fault:xfs_filemap_fault mmap:xfs_file_mmap read_folio:xfs_vm_read_folio
CPU: 1 PID: 15750 Comm: syz-executor.2 Tainted: G    B              6.6.0-rc3-syzkaller-00055-g9ed22ae6be81 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_bad_pte+0x581/0x5c0 mm/memory.c:535
 zap_pte_range mm/memory.c:1458 [inline]
 zap_pmd_range mm/memory.c:1573 [inline]
 zap_pud_range mm/memory.c:1602 [inline]
 zap_p4d_range mm/memory.c:1623 [inline]
 unmap_page_range+0x1a76/0x3320 mm/memory.c:1644
 unmap_vmas+0x2b8/0x460 mm/memory.c:1731
 exit_mmap+0x297/0xc50 mm/mmap.c:3210
 __mmput+0x115/0x3c0 kernel/fork.c:1349
 exit_mm+0x21f/0x300 kernel/exit.c:567
 do_exit+0x9af/0x2650 kernel/exit.c:861
 do_group_exit+0x206/0x2c0 kernel/exit.c:1024
 get_signal+0x175d/0x1840 kernel/signal.c:2892
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f80d227cae9
Code: Unable to access opcode bytes at 0x7f80d227cabf.
RSP: 002b:00007ffffbdc0878 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 0000000000228e9d RCX: 00007f80d227cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f80d239bf8c
RBP: 0000000000000032 R08: 00007f80d239bf8c R09: 00007f80d239bf8c
R10: 00007ffffbdc09b0 R11: 0000000000000246 R12: 00007f80d239bf8c
R13: 0000000000228ecf R14: 00007ffffbdc09d0 R15: 00007ffffbdc09b0
 </TASK>
BUG: Bad page state in process syz-executor.2  pfn:375ff
page:ffffea0000dd7fc0 refcount:0 mapcount:-1 mapping:ffff88801f43d9d8 index:0x3ac pfn:0x375ff
aops:shmem_aops ino:b dentry name:"memfd:syz-shared-mem"
flags: 0xfff0000008000c(referenced|uptodate|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xfffffffe()
raw: 00fff0000008000c ffffea00020deb88 ffffc9000b43f2e0 ffff88801f43d9d8
raw: 00000000000003ac 0000000000000000 00000000fffffffe 0000000000000000
page dumped because: non-NULL mapping
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 17841, tgid 17840 (syz-executor.5), ts 806593393534, free_ts 805703015534
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536
 prep_new_page mm/page_alloc.c:1543 [inline]
 get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170
 __alloc_pages+0x255/0x670 mm/page_alloc.c:4426
 __folio_alloc+0x13/0x30 mm/page_alloc.c:4458
 vma_alloc_folio+0x48a/0x9a0 mm/mempolicy.c:2259
 shmem_alloc_folio mm/shmem.c:1658 [inline]
 shmem_alloc_and_acct_folio+0x438/0x9b0 mm/shmem.c:1683
 shmem_get_folio_gfp+0xca4/0x2b60 mm/shmem.c:2020
 shmem_fault+0x219/0x7e0 mm/shmem.c:2227
 __do_fault+0x133/0x4e0 mm/memory.c:4204
 do_read_fault mm/memory.c:4568 [inline]
 do_fault mm/memory.c:4705 [inline]
 do_pte_missing mm/memory.c:3669 [inline]
 handle_pte_fault mm/memory.c:4978 [inline]
 __handle_mm_fault mm/memory.c:5119 [inline]
 handle_mm_fault+0x428e/0x62b0 mm/memory.c:5284
 faultin_page mm/gup.c:956 [inline]
 __get_user_pages+0x6bd/0x15f0 mm/gup.c:1239
 __get_user_pages_locked mm/gup.c:1504 [inline]
 get_dump_page+0x146/0x2b0 mm/gup.c:2018
 dump_user_range+0x126/0x910 fs/coredump.c:913
 elf_core_dump+0x3c91/0x4540 fs/binfmt_elf.c:2142
 do_coredump+0x1b73/0x2ab0 fs/coredump.c:764
 get_signal+0x145e/0x1840 kernel/signal.c:2878
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1136 [inline]
 free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312
 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2451
 release_pages+0x2113/0x23f0 mm/swap.c:1042
 __folio_batch_release+0x84/0x100 mm/swap.c:1062
 folio_batch_release include/linux/pagevec.h:83 [inline]
 shmem_undo_range+0x6ad/0x19c0 mm/shmem.c:1022
 shmem_truncate_range mm/shmem.c:1114 [inline]
 shmem_evict_inode+0x29e/0xa80 mm/shmem.c:1243
 evict+0x2a4/0x620 fs/inode.c:664
 __dentry_kill+0x436/0x650 fs/dcache.c:607
 dentry_kill+0xbb/0x290
 dput+0x21e/0x470 fs/dcache.c:913
 __fput+0x60d/0x910 fs/file_table.c:392
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
Modules linked in:
CPU: 0 PID: 15750 Comm: syz-executor.2 Tainted: G    B              6.6.0-rc3-syzkaller-00055-g9ed22ae6be81 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 bad_page+0x14b/0x170 mm/page_alloc.c:513
 free_page_is_bad mm/page_alloc.c:959 [inline]
 free_pages_prepare mm/page_alloc.c:1128 [inline]
 free_unref_page_prepare+0x97c/0x9f0 mm/page_alloc.c:2312
 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2451
 release_pages+0x2113/0x23f0 mm/swap.c:1042
 tlb_batch_pages_flush mm/mmu_gather.c:98 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:293 [inline]
 tlb_flush_mmu+0x34c/0x4e0 mm/mmu_gather.c:300
 zap_pte_range mm/memory.c:1534 [inline]
 zap_pmd_range mm/memory.c:1573 [inline]
 zap_pud_range mm/memory.c:1602 [inline]
 zap_p4d_range mm/memory.c:1623 [inline]
 unmap_page_range+0x29dc/0x3320 mm/memory.c:1644
 unmap_vmas+0x2b8/0x460 mm/memory.c:1731
 exit_mmap+0x297/0xc50 mm/mmap.c:3210
 __mmput+0x115/0x3c0 kernel/fork.c:1349
 exit_mm+0x21f/0x300 kernel/exit.c:567
 do_exit+0x9af/0x2650 kernel/exit.c:861
 do_group_exit+0x206/0x2c0 kernel/exit.c:1024
 get_signal+0x175d/0x1840 kernel/signal.c:2892
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f80d227cae9
Code: Unable to access opcode bytes at 0x7f80d227cabf.
RSP: 002b:00007ffffbdc0878 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 0000000000228e9d RCX: 00007f80d227cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f80d239bf8c
RBP: 0000000000000032 R08: 00007f80d239bf8c R09: 00007f80d239bf8c
R10: 00007ffffbdc09b0 R11: 0000000000000246 R12: 00007f80d239bf8c
R13: 0000000000228ecf R14: 00007ffffbdc09d0 R15: 00007ffffbdc09b0
 </TASK>
BUG: Bad rss-counter state mm:ffff88807dcc0980 type:MM_FILEPAGES val:1
BUG: Bad rss-counter state mm:ffff88807dcc0980 type:MM_SHMEMPAGES val:-1